Metadata-Version: 1.1
Name: zappa
Version: 0.37.0
Summary: Server-less Python Web Services for AWS Lambda and API Gateway
Home-page: https://github.com/Miserlou/Zappa
Author: Rich Jones
Author-email: rich@openwatch.net
License: MIT License
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        Zappa - Serverless Python Web Services
        ======================================
        
        |Build Status| |Coverage| |Requirements Status| |PyPI| |Slack| |Gun.io|
        
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        -  `About <#about>`__
        -  `Installation and Configuration <#installation-and-configuration>`__
        
           -  `Running the Initial Setup /
              Settings <#running-the-initial-setup--settings>`__
        
        -  `Basic Usage <#basic-usage>`__
        
           -  `Initial Deployments <#initial-deployments>`__
           -  `Updates <#updates>`__
           -  `Rollback <#rollback>`__
           -  `Scheduling <#scheduling>`__
           -  `Executing in Response to AWS
              Events <#executing-in-response-to-aws-events>`__
           -  `Undeploy <#undeploy>`__
           -  `Package <#package>`__
           -  `Status <#status>`__
           -  `Tailing Logs <#tailing-logs>`__
           -  `Remote Function Invocation <#remote-function-invocation>`__
           -  `Django Management Commands <#django-management-commands>`__
           -  `Let's Encrypt SSL Domain Certification and
              Installation <#lets-encrypt-ssl-domain-certification-and-installation>`__
        
        -  `Advanced Settings <#advanced-settings>`__
        
           -  `YAML Settings <#yaml-settings>`__
        
        -  `Advanced Usage <#advanced-usage>`__
        
           -  `Keeping The Server Warm <#keeping-the-server-warm>`__
           -  `Serving Static Files / Binary
              Uploads <#serving-static-files--binary-uploads>`__
           -  `Enabling CORS <#enabling-cors>`__
           -  `Enabling Bash Completion <#enabling-bash-completion>`__
           -  `Enabling Secure Endpoints on API
              Gateway <#enabling-secure-endpoints-on-api-gateway>`__
           -  `API Key <#api-key>`__
           -  `IAM Policy <#iam-policy>`__
           -  `API Gateway Authorizers <#api-gateway-authorizers>`__
           -  `Cognito User Pool Authorizer <#cognito-user-pool-authorizer>`__
           -  `Deploying to a Custom Domain Name with SSL
              Certificates <#deploying-to-a-custom-domain-name-with-ssl-certificates>`__
           -  `Deploying to a Domain With a Let's Encrypt Certificate (DNS
              Auth) <#deploying-to-a-domain-with-a-lets-encrypt-certificate-dns-auth>`__
           -  `Deploying to a Domain With a Let's Encrypt Certificate (HTTP
              Auth) <#deploying-to-a-domain-with-a-lets-encrypt-certificate-http-auth>`__
           -  `Deploying with Custom Domain Name (with your own SSL
              Certs) <#deploying-to-domain-name-with-your-own-ssl-certs>`__
           -  `Setting Environment Variables <#setting-environment-variables>`__
           -  `Local Environment Variables <#local-environment-variables>`__
           -  `Remote Environment Variables <#remote-environment-variables>`__
           -  `Catching Unhandled Exceptions <#catching-unhandled-exceptions>`__
           -  `Using Custom AWS IAM Roles and
              Policies <#using-custom-aws-iam-roles-and-policies>`__
           -  `Globally Available Server-less
              Architectures <#globally-available-server-less-architectures>`__
           -  `Raising AWS Service Limits <#raising-aws-service-limits>`__
        
        -  `Zappa Guides <#zappa-guides>`__
        -  `Zappa in the Press <#zappa-in-the-press>`__
        -  `Sites Using Zappa <#sites-using-zappa>`__
        -  `Related Projects <#related-projects>`__
        -  `Hacks <#hacks>`__
        -  `Contributing <#contributing>`__
        
           -  `Using a Local Repo <#using-a-local-repo>`__
        
        -  `Support / Development / Training /
           Consulting <#support--development--training--consulting>`__
        
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        About
        =====
        
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        In a hurry? Click to see slides from Serverless SF!
        
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        **Zappa** makes it super easy to deploy all Python WSGI applications on
        AWS Lambda + API Gateway. Think of it as "serverless" web hosting for
        your Python web apps. That means **infinite scaling**, **zero
        downtime**, **zero maintenance** - and at a fraction of the cost of your
        current deployments!
        
        If you've got a Python web app (including Django and Flask apps), it's
        as easy as:
        
        ::
        
            $ pip install zappa
            $ zappa init
            $ zappa deploy
        
        and now you're server-less! *Wow!*
        
            What do you mean "serverless"?
        
        Okay, so there still is a server - but it only has a *40 millisecond*
        life cycle! Serverless in this case means **"without any permanent
        infrastructure."**
        
        With a traditional HTTP server, the server is online 24/7, processing
        requests one by one as they come in. If the queue of incoming requests
        grows too large, some requests will time out. With Zappa, **each request
        is given its own virtual HTTP "server"** by Amazon API Gateway. AWS
        handles the horizontal scaling automatically, so no requests ever time
        out. Each request then calls your application from a memory cache in AWS
        Lambda and returns the response via Python's WSGI interface. After your
        app returns, the "server" dies.
        
        Better still, with Zappa you only pay for the milliseconds of server
        time that you use, so it's many **orders of magnitude cheaper** than
        VPS/PaaS hosts like Linode or Heroku - and in most cases, it's
        completely free. Plus, there's no need to worry about load balancing or
        keeping servers online ever again.
        
        It's great for deploying serverless microservices with frameworks like
        Flask and Bottle, and for hosting larger web apps and CMSes with Django.
        Or, you can use any WSGI-compatible app you like! You **probably don't
        need to change your existing applications** to use it, and you're not
        locked into using it.
        
        And finally, Zappa is **super easy to use**. You can deploy your
        application with a single command out of the box.
        
        **Awesome!**
        
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        Installation and Configuration
        ==============================
        
        *Before you begin, make sure you have a valid AWS account and your `AWS
        credentials
        file <https://blogs.aws.amazon.com/security/post/Tx3D6U6WSFGOK2H/A-New-and-Standardized-Way-to-Manage-Credentials-in-the-AWS-SDKs>`__
        is properly installed.*
        
        **Zappa** can easily be installed through pip, like so:
        
        ::
        
            $ pip install zappa
        
        Please note that Zappa ***must*** be installed into your project's
        `virtual
        environment <http://docs.python-guide.org/en/latest/dev/virtualenvs/>`__.
        
        *(If you use `pyenv <https://github.com/yyuu/pyenv>`__ and love to
        manage virtualenvs with **pyenv-virtualenv**, you just have to call
        ``pyenv local [your_venv_name]`` and it's ready.
        `Conda <http://conda.pydata.org/docs/>`__ users should comment
        `here <https://github.com/Miserlou/Zappa/pull/108>`__.)*
        
        Next, you'll need to define your local and server-side settings.
        
        Running the Initial Setup / Settings
        ------------------------------------
        
        **Zappa** can automatically set up your deployment settings for you with
        the ``init`` command:
        
        ::
        
            $ zappa init
        
        This will automatically detect your application type (Flask/Django -
        Pyramid users `see
        here <https://github.com/Miserlou/Zappa/issues/278#issuecomment-241917956>`__)
        and help you define your deployment configuration settings. Once you
        finish initialization, you'll have a file named *zappa\_settings.json*
        in your project directory defining your basic deployment settings. It
        will probably look something like this for most WSGI apps:
        
        .. code:: javascript
        
            {
                // The name of your stage
                "dev": {
                    // The name of your S3 bucket
                    "s3_bucket": "lmbda",
        
                    // The modular python path to your WSGI application function.
                    // In Flask and Bottle, this is your 'app' object.
                    // Flask (your_module.py):
                    // app = Flask()
                    // Bottle (your_module.py):
                    // app = bottle.default_app()
                    "app_function": "your_module.app"
                }
            }
        
        or for Django:
        
        .. code:: javascript
        
            {
                "dev": { // The name of your stage
                   "s3_bucket": "lmbda", // The name of your S3 bucket
                   "django_settings": "your_project.settings" // The python path to your Django settings.
                }
            }
        
        You can define as many stages as your like - we recommend having *dev*,
        *staging*, and *production*.
        
        Now, you're ready to deploy!
        
        Basic Usage
        ===========
        
        Initial Deployments
        -------------------
        
        Once your settings are configured, you can package and deploy your
        application to a stage called "production" with a single command:
        
        ::
        
            $ zappa deploy production
            Deploying..
            Your application is now live at: https://7k6anj0k99.execute-api.us-east-1.amazonaws.com/production
        
        And now your app is **live!** How cool is that?!
        
        To explain what's going on, when you call ``deploy``, Zappa will
        automatically package up your application and local virtual environment
        into a Lambda-compatible archive, replace any dependencies with versions
        `precompiled for
        Lambda <https://github.com/Miserlou/lambda-packages>`__, set up the
        function handler and necessary WSGI Middleware, upload the archive to
        S3, register it as a new Lambda function, create a new API Gateway
        resource, create WSGI-compatible routes for it, link it to the new
        Lambda function, and finally delete the archive from your S3 bucket.
        Handy!
        
        Updates
        -------
        
        If your application has already been deployed and you only need to
        upload new Python code, but not touch the underlying routes, you can
        simply:
        
        ::
        
            $ zappa update production
            Updating..
            Your application is now live at: https://7k6anj0k99.execute-api.us-east-1.amazonaws.com/production
        
        This creates a new archive, uploads it to S3 and updates the Lambda
        function to use the new code, but doesn't touch the API Gateway routes.
        
        Rollback
        --------
        
        You can also ``rollback`` the deployed code to a previous version by
        supplying the number of revisions to return to. For instance, to
        rollback to the version deployed 3 versions ago:
        
        ::
        
            $ zappa rollback production -n 3
        
        Scheduling
        ----------
        
        Zappa can be used to easily schedule functions to occur on regular
        intervals. This provides a much nicer, maintenance-free alternative to
        Celery! These functions will be packaged and deployed along with your
        ``app_function`` and called from the handler automatically. Just list
        your functions and the expression to schedule them using `cron or rate
        syntax <http://docs.aws.amazon.com/lambda/latest/dg/tutorial-scheduled-events-schedule-expressions.html>`__
        in your *zappa\_settings.json* file:
        
        .. code:: javascript
        
            {
                "production": {
                   ...
                   "events": [{
                       "function": "your_module.your_function", // The function to execute
                       "expression": "rate(1 minute)" // When to execute it (in cron or rate format)
                   }],
                   ...
                }
            }
        
        And then:
        
        ::
        
            $ zappa schedule production
        
        And now your function will execute every minute!
        
        If you want to cancel these, you can simply use the ``unschedule``
        command:
        
        ::
        
            $ zappa unschedule production
        
        And now your scheduled event rules are deleted.
        
        See the `example <example/>`__ for more details.
        
        Executing in Response to AWS Events
        -----------------------------------
        
        Similarly, you can have your functions execute in response to events
        that happen in the AWS ecosystem, such as S3 uploads, DynamoDB entries,
        Kinesis streams, and SNS messages.
        
        In your *zappa\_settings.json* file, define your `event
        sources <http://docs.aws.amazon.com/lambda/latest/dg/invoking-lambda-function.html>`__
        and the function you wish to execute. For instance, this will execute
        ``your_module.your_function`` in response to new objects in your
        ``my-bucket`` S3 bucket. Note that ``your_function`` must accept
        ``event`` and ``context`` parameters.
        
        .. code:: javascript
        
            {
                "production": {
                   ...
                   "events": [{
                        "function": "your_module.your_function",
                        "event_source": {
                              "arn":  "arn:aws:s3:::my-bucket",
                              "events": [
                                "s3:ObjectCreated:*" // Supported event types: http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html#supported-notification-event-types
                              ]
                           }
                        }],
                   ...
                }
            }
        
        And then:
        
        ::
        
            $ zappa schedule production
        
        And now your function will execute every time a new upload appears in
        your bucket!
        
        Similarly, for a `Simple Notification
        Service <https://aws.amazon.com/sns/>`__ event:
        
        .. code:: javascript
        
                    "events": [
                        {
                            "function": "your_module.your_function",
                            "event_source": {
                                "arn":  "arn:aws:sns:::your-event-topic-arn",
                                "events": [
                                    "sns:Publish"
                                ]
                            }
                        }
                    ]
        
        `DynamoDB <http://docs.aws.amazon.com/lambda/latest/dg/with-ddb.html>`__
        and
        `Kinesis <http://docs.aws.amazon.com/lambda/latest/dg/with-kinesis.html>`__
        are slightly different as it is not event based but pulling from a
        stream:
        
        .. code:: javascript
        
                   "events": [
                       {
                           "function": "replication.replicate_records",
                           "event_source": {
                                "arn":  "arn:aws:dynamodb:us-east-1:1234554:table/YourTable/stream/2016-05-11T00:00:00.000",
                                "starting_position": "TRIM_HORIZON", // Supported values: TRIM_HORIZON, LATEST
                                "batch_size": 50, // Max: 1000
                                "enabled": true // Default is false
                           }
                       }
                   ]
        
        You can find more `example event sources
        here <http://docs.aws.amazon.com/lambda/latest/dg/eventsources.html>`__.
        
        Undeploy
        --------
        
        If you need to remove the API Gateway and Lambda function that you have
        previously published, you can simply:
        
        ::
        
            $ zappa undeploy production
        
        You will be asked for confirmation before it executes.
        
        If you enabled CloudWatch Logs for your API Gateway service and you
        don't want to keep those logs, you can specify the ``--remove-logs``
        argument to purge the logs for your API Gateway and your Lambda
        function:
        
        ::
        
            $ zappa undeploy production --remove-logs
        
        Package
        -------
        
        If you want to build your application package without actually uploading
        and registering it as a Lambda function, you can use the ``package``
        command:
        
        ::
        
            $ zappa package production
        
        If you have a ``zip`` callback in your ``callbacks`` setting, this will
        also be invoked.
        
        .. code:: javascript
        
            {
                "production": { // The name of your stage
                    "callbacks": {
                        "zip": "my_app.zip_callback"// After creating the package
                    }
                }
            }
        
        Status
        ------
        
        If you need to see the status of your deployment and event schedules,
        simply use the ``status`` command.
        
        ::
        
            $ zappa status production
        
        Tailing Logs
        ------------
        
        You can watch the logs of a deployment by calling the ``tail``
        management command.
        
        ::
        
            $ zappa tail production
        
        By default, this will show all log items. In addition to HTTP and other
        events, anything ``print``\ ed to ``stdout`` or ``stderr`` will be shown
        in the logs.
        
        You can use the argument ``--http`` to filter for HTTP requests, which
        will be in the Apache Common Log Format.
        
        ::
        
            $ zappa tail production --http
        
        Similarly, you can do the inverse and only show non-HTTP events and log
        messages:
        
        ::
        
            $ zappa tail production --non-http
        
        If you don't like the default log colors, you can turn them off with
        ``--no-color``.
        
        You can also limit the length of the tail with ``--since``, which
        accepts a simple duration string:
        
        ::
        
            $ zappa tail production --since 4h # 4 hours
            $ zappa tail production --since 1m # 1 minute
            $ zappa tail production --since 1mm # 1 month
        
        You can filter out the contents of the logs with ``--filter``, like so:
        
        ::
        
            $ zappa tail production --http --filter "POST" # Only show POST HTTP requests
        
        Note that this uses the `CloudWatch Logs filter
        syntax <http://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/FilterAndPatternSyntax.html>`__.
        
        Remote Function Invocation
        --------------------------
        
        You can execute any function in your application directly at any time by
        using the ``invoke`` command.
        
        For instance, suppose you have a basic application in a file called
        "my\_app.py", and you want to invoke a function in it called
        "my\_function". Once your application is deployed, you can invoke that
        function at any time by calling:
        
        ::
        
            $ zappa invoke production 'my_app.my_function'
        
        Any remote print statements made and the value the function returned
        will then be printed to your local console. **Nifty!**
        
        You can also invoke interpretable Python 2.7 strings directly by using
        ``--raw``, like so:
        
        ::
        
            $ zappa invoke production "print 1 + 2 + 3" --raw
        
        Django Management Commands
        --------------------------
        
        As a convenience, Zappa can also invoke remote Django 'manage.py'
        commands with the ``manage`` command. For instance, to perform the basic
        Django status check:
        
        ::
        
            $ zappa manage production showmigrations admin
        
        Obviously, this only works for Django projects which have their settings
        properly defined.
        
        For commands which have their own arguments, you can also pass the
        command in as a string, like so:
        
        ::
        
            $ zappa manage production "shell --version"
        
        Commands which require direct user input, such as ``createsuperuser``,
        should be `replaced by commands <http://stackoverflow.com/a/26091252>`__
        which use ``zappa <env> invoke --raw``.
        
        *(Please note that commands which take over 30 seconds to execute may
        time-out. See `this related
        issue <https://github.com/Miserlou/Zappa/issues/205#issuecomment-236391248>`__
        for a work-around.)*
        
        Let's Encrypt SSL Domain Certification and Installation
        -------------------------------------------------------
        
        If you want to use Zappa applications on a custom domain or subdomain,
        you'll need to supply a valid SSL certificate. Fortunately for you,
        Zappa can automatically create and install free valid SSL certificates
        using Let's Encrypt!
        
        If your domain is located within an AWS Route 53 Hosted Zone and you've
        defined ``domain`` and ``lets_encrypt_key`` (ex:
        ``openssl genrsa 2048 > account.key``) settings, all you need to do is:
        
        ::
        
            $ zappa certify production
        
        And your domain will be verified, certified and registered!
        
        *(Please note that this can take around 45 minutes to take effect the
        first time your run the command, and around 60 seconds every time after
        that.)*
        
        More detailed instructions are available `in this handy
        guide <https://github.com/Miserlou/Zappa/blob/master/docs/domain_with_free_ssl_dns.md>`__.
        
        Advanced Settings
        =================
        
        There are other settings that you can define in your local settings to
        change Zappa's behavior. Use these at your own risk!
        
        .. code:: javascript
        
             {
                "dev": {
                    "api_key_required": false, // enable securing API Gateway endpoints with x-api-key header (default False)
                    "api_key": "your_api_key_id", // optional, use an existing API key. The option "api_key_required" must be true to apply
                    "apigateway_enabled": true, // Set to false if you don't want to create an API Gateway resource. Default true.
                    "assume_policy": "my_assume_policy.json", // optional, IAM assume policy JSON file
                    "attach_policy": "my_attach_policy.json", // optional, IAM attach policy JSON file
                    "aws_region": "aws-region-name", // optional, uses region set in profile or environment variables if not set here,
                    "binary_support": true, // Enable automatic MIME-type based response encoding through API Gateway. Default true.
                    "callbacks": { // Call custom functions during the local Zappa deployment/update process
                        "settings": "my_app.settings_callback", // After loading the settings
                        "zip": "my_app.zip_callback", // After creating the package
                        "post": "my_app.post_callback", // After command has executed
                    },
                    "cache_cluster_enabled": false, // Use APIGW cache cluster (default False)
                    "cache_cluster_size": 0.5, // APIGW Cache Cluster size (default 0.5)
                    "certificate": "my_cert.crt", // SSL certificate file location. Used to manually certify a custom domain
                    "certificate_key": "my_key.key", // SSL key file location. Used to manually certify a custom domain
                    "certificate_chain": "my_cert_chain.pem", // SSL certificate chain file location. Used to manually certify a custom domain
                    "cloudwatch_log_level": "OFF", // Enables/configures a level of logging for the given staging. Available options: "OFF", "INFO", "ERROR", default "OFF".
                    "cloudwatch_data_trace": false, // Logs all data about received events.
                    "cloudwatch_metrics_enabled": false, // Additional metrics for the API Gateway.
                    "cors": true, // Enable Cross-Origin Resource Sharing. Default false. If true, simulates the "Enable CORS" button on the API Gateway console. Can also be a dictionary specifying lists of "allowed_headers", "allowed_methods", and string of "allowed_origin"
                    "debug": true, // Print Zappa configuration errors tracebacks in the 500
                    "delete_local_zip": true, // Delete the local zip archive after code updates
                    "delete_s3_zip": true, // Delete the s3 zip archive
                    "django_settings": "your_project.production_settings", // The modular path to your Django project's settings. For Django projects only.
                    "domain": "yourapp.yourdomain.com", // Required if you're using a domain
                    "environment_variables": {"your_key": "your_value"}, // A dictionary of environment variables that will be available to your deployed app. See also "remote_env". Default {}.
                    "events": [
                        {   // Recurring events
                            "function": "your_module.your_recurring_function", // The function to execute
                            "expression": "rate(1 minute)" // When to execute it (in cron or rate format)
                        },
                        {   // AWS Reactive events
                            "function": "your_module.your_reactive_function", // The function to execute
                            "event_source": {
                                "arn":  "arn:aws:s3:::my-bucket", // The ARN of this event source
                                "events": [
                                    "s3:ObjectCreated:*" // The specific event to execute in response to.
                                ]
                            }
                        }
                    ],
                    "exception_handler": "your_module.report_exception", // function that will be invoked in case Zappa sees an unhandled exception raised from your code
                    "exclude": ["*.gz", "*.rar"], // A list of regex patterns to exclude from the archive. To exclude boto3 and botocore (available in an older version on Lambda), add "boto3*" and "botocore*".
                    "extends": "stage_name", // Duplicate and extend another stage's settings. For example, `dev-asia` could extend from `dev-common` with a different `s3_bucket` value.
                    "iam_authorization": true, // optional, use IAM to require request signing. Default false. Note that enabling this will override the authorizer configuration.
                    "authorizer": {
                        "function": "your_module.your_auth_function", // Local function to run for token validation. For more information about the function see below.
                        "arn": "arn:aws:lambda:<region>:<account_id>:function:<function_name>", // Existing Lambda function to run for token validation.
                        "result_ttl": 300, // Optional. Default 300. The time-to-live (TTL) period, in seconds, that specifies how long API Gateway caches authorizer results. Currently, the maximum TTL value is 3600 seconds.
                        "token_source": "Authorization", // Optional. Default 'Authorization'. The name of a custom authorization header containing the token that clients submit as part of their requests.
                        "validation_expression": "^Bearer \\w+$", // Optional. A validation expression for the incoming token, specify a regular expression.
                    },
                    "keep_warm": true, // Create CloudWatch events to keep the server warm.
                    "keep_warm_expression": "rate(4 minutes)", // How often to execute the keep-warm, in cron and rate format. Default 4 minutes.
                    "lambda_description": "Your Description", // However you want to describe your project for the AWS console. Default "Zappa Deployment".
                    "lambda_handler": "your_custom_handler", // The name of Lambda handler. Default: handler.lambda_handler
                    "lets_encrypt_key": "s3://your-bucket/account.key", // Let's Encrypt account key path. Can either be an S3 path or a local file path.
                    "lets_encrypt_expression": "rate(15 days)" // How often to auto-renew Let's Encrypt certificate on the server. Must be set to enable autorenewing, rate or cron syntax.
                    "log_level": "DEBUG", // Set the Zappa log level. Can be one of CRITICAL, ERROR, WARNING, INFO and DEBUG. Default: DEBUG
                    "manage_roles": true, // Have Zappa automatically create and define IAM execution roles and policies. Default true. If false, you must define your own IAM Role and role_name setting.
                    "memory_size": 512, // Lambda function memory in MB
                    "prebuild_script": "your_module.your_function", // Function to execute before uploading code
                    "profile_name": "your-profile-name", // AWS profile credentials to use. Default 'default'.
                    "project_name": "MyProject", // The name of the project as it appears on AWS. Defaults to a slugified `pwd`.
                    "remote_env": "s3://my-project-config-files/filename.json", // optional file in s3 bucket containing a flat json object which will be used to set custom environment variables.
                    "role_name": "MyLambdaRole", // Name of Zappa execution role. Default ZappaExecutionRole. To use a different, pre-existing policy, you must also set manage_roles to false.
                    "route53_enabled": true, // Have Zappa update your Route53 Hosted Zones when certifying with a custom domain
                    "s3_bucket": "dev-bucket", // Zappa zip bucket,
                    "slim_handler": false, // Useful if project >50M. Set true to just upload a small handler to Lambda and load actual project from S3 at runtime.
                    "settings_file": "~/Projects/MyApp/settings/dev_settings.py", // Server side settings file location,
                    "timeout_seconds": 30, // Maximum lifespan for the Lambda function (default 30, max 300.)
                    "touch": false, // GET the production URL upon initial deployment (default True)
                    "use_precompiled_packages": false, // If possible, use C-extension packages which have been pre-compiled for AWS Lambda
                    "vpc_config": { // Optional VPC configuration for Lambda function
                        "SubnetIds": [ "subnet-12345678" ], // Note: not all availability zones support Lambda!
                        "SecurityGroupIds": [ "sg-12345678" ]
                    }
                }
            }
        
        YAML Settings
        -------------
        
        If you prefer YAML over JSON, you can also use a ``zappa_settings.yml``,
        like so:
        
        .. code:: yaml
        
            ---
            dev:
              app_function: your_module.your_app
              s3_bucket: your-code-bucket
              events:
              - function: your_module.your_function
                event_source:
                  arn: arn:aws:s3:::your-event-bucket
                  events:
                  - s3:ObjectCreated:*
        
        You can also supply a custom settings file at any time with the ``-s``
        argument, ex:
        
        ::
        
            $ zappa deploy dev -s my-custom-settings.yml
        
        Similarly, you can supply a ``zappa_settings.toml`` file:
        
        .. code:: toml
        
            [dev]
              app_function = "your_module.your_app"
              s3_bucket = "your-code-bucket"
        
        Advanced Usage
        ==============
        
        Keeping The Server Warm
        -----------------------
        
        Zappa will automatically set up a regularly occurring execution of your
        application in order to keep the Lambda function warm. This can be
        disabled via the 'keep\_warm' setting.
        
        Serving Static Files / Binary Uploads
        -------------------------------------
        
        Zappa is now able to serve binary files, as detected by their MIME-type.
        
        However, generally Zappa is designed for running your application code,
        not for serving static web assets. If you plan on serving custom static
        assets in your web application (CSS/JavaScript/images/etc.,), you'll
        likely want to use a combination of AWS S3 and AWS CloudFront.
        
        Your web application framework will likely be able to handle this for
        you automatically. For Flask, there is
        `Flask-S3 <https://github.com/e-dard/flask-s3>`__, and for Django, there
        is
        `Django-Storages <https://django-storages.readthedocs.io/en/latest/>`__.
        
        Similarly, you will not be able to accept binary multi-part uploads
        through the API Gateway. Instead, you should design your application so
        that binary uploads go `directly to
        S3 <http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/browser-examples.html#Uploading_a_local_file_using_the_File_API>`__,
        which then triggers an event response defined in your ``events``
        setting! That's thinking serverlessly!
        
        Enabling CORS
        -------------
        
        The easiest way to enable CORS (Cross-Origin Resource Sharing) for in
        your Zappa application is to set ``cors`` to ``true`` in your Zappa
        settings file and updating, which is the equivalent of pushing the
        "Enable CORS" button in the AWS API Gateway console. This is disabled by
        default, but you may wish to enable it for APIs which are accssed from
        other domains, etc.
        
        You can also simply handle CORS directly in your application. If you do
        this, you'll need to add ``Access-Control-Allow-Origin``,
        ``Access-Control-Allow-Headers``, and ``Access-Control-Allow-Methods``
        to the ``method_header_types`` key in your ``zappa_settings.json``. See
        further `discussion
        here <https://github.com/Miserlou/Zappa/issues/41>`__.
        
        Large Projects
        --------------
        
        AWS currently limits Lambda zip sizes to 50 megabytes. If your project
        is larger than that, set ``slim_handler: true`` in your
        ``zappa_settings.json``. In this case, your fat application package will
        be replaced with a small handler-only package. The handler file then
        pulls the rest of the large project down from S3 at run time! The
        initial load of the large project may add to startup overhead, but the
        difference should be minimal on a warm lambda function. Note that this
        will also eat into the *memory* space of your application function.
        
        Enabling Bash Completion
        ------------------------
        
        Bash completion can be enabled by adding the following to your .bashrc:
        
        .. code:: bash
        
              eval "$(register-python-argcomplete zappa)"
        
        ``register-python-argcomplete`` is provided by the argcomplete Python
        package. If this package was installed in a virtualenv then the command
        must be run there. Alternatively you can execute:
        
        activate-global-python-argcomplete --dest=- > file
        
        The file's contents should then be sourced in e.g. ~/.bashrc.
        
        Enabling Secure Endpoints on API Gateway
        ----------------------------------------
        
        API Key
        ~~~~~~~
        
        You can use the ``api_key_required`` setting to generate and assign an
        API key to all the routes of your API Gateway. After redeployment, you
        can then pass the provided key as a header called ``x-api-key`` to
        access the restricted endpoints. Without the ``x-api-key`` header, you
        will receive a 403. You'll also need to manually associate this API key
        with your usage plan in the AWS console. `More information on API keys
        in the API
        Gateway <http://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-api-keys.html>`__.
        
        IAM Policy
        ~~~~~~~~~~
        
        You can enable IAM-based (v4 signing) authorization on an API by setting
        the ``iam_authorization`` setting to ``true``. Your API will then
        require signed requests and access can be controlled via `IAM
        policy <https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-iam-policy-examples.html>`__.
        Unsigned requests will receive a 403 response, as will requesters who
        are not authorized to access the API. Enabling this will override the
        Authorizer configuration (see below).
        
        API Gateway Authorizers
        ~~~~~~~~~~~~~~~~~~~~~~~
        
        If you deploy an API endpoint with Zappa, you can take advantage of `API
        Gateway
        Authorizers <http://docs.aws.amazon.com/apigateway/latest/developerguide/use-custom-authorizer.html>`__
        to implement a token-based authentication - all you need to do is to
        provide a function to create the required output, Zappa takes care of
        the rest. A good start for the function is the `awslabs blueprint
        example. <https://github.com/awslabs/aws-apigateway-lambda-authorizer-blueprints/blob/master/blueprints/python/api-gateway-authorizer-python.py>`__
        
        If you are wondering for what you would use an Authorizer, here are some
        potential use cases:
        
        1. Call out to OAuth provider
        2. Decode a JWT token inline
        3. Lookup in a self-managed DB (for example DynamoDB)
        
        Zappa can be configured to call a function inside your code to do the
        authorization, or to call some other existing lambda function (which
        lets you share the authorizer between multiple lambdas). You control the
        behavior by specifying either the ``arn`` or ``function_name`` values in
        the ``authorizer`` settings block.
        
        Cognito User Pool Authorizer
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        
        You can also use AWS Cognito User Pool Authorizer by adding:
        
        .. code:: javascript
        
            {
                "authorizer": {
                    "type": "COGNITO_USER_POOLS",
                    "provider_arns": [
                        "arn:aws:cognito-idp:{region}:{account_id}:userpool/{user_pool_id}"
                    ]
                }
            }
        
        Deploying to a Custom Domain Name with SSL Certificates
        -------------------------------------------------------
        
        Deploying to a Domain With a Let's Encrypt Certificate (DNS Auth)
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        
        If you want to use Zappa on a domain with a free Let's Encrypt
        certificate using automatic Route 53 based DNS Authentication, you can
        follow `this handy
        guide <https://github.com/Miserlou/Zappa/blob/master/docs/domain_with_free_ssl_dns.md>`__.
        
        Deploying to a Domain With a Let's Encrypt Certificate (HTTP Auth)
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        
        If you want to use Zappa on a domain with a free Let's Encrypt
        certificate using HTTP Authentication, you can follow `this
        guide <https://github.com/Miserlou/Zappa/blob/master/docs/domain_with_free_ssl_http.md>`__.
        
        However, it's now far easier to use Route 53-based DNS authentication,
        which will allow you to use a Let's Encrypt certificate with a single
        ``$ zappa certify`` command.
        
        Deploying to Domain Name with your own SSL Certs
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        
        1. The first step is to create a custom domain and obtain your SSL cert
           / key / bundle.
        2. Ensure you have set the ``domain`` setting within your Zappa settings
           JSON - this will avoid problems with the Base Path mapping between
           the Custom Domain and the API invoke URL, which gets the Stage Name
           appended in the URI
        3. Add the paths to your SSL cert / key / bundle to the ``certificate``,
           ``certificate_key``, and ``certificate_chain`` settings,
           respectively, in your Zappa settings JSON
        4. Set ``route53_enabled`` to ``false`` if you plan on using your own
           DNS provider, and not an AWS Route53 Hosted zone.
        5. Deploy or update your app using Zappa
        6. Run ``$ zappa certify`` to upload your certificates and register the
           custom domain name with your API gateway.
        
        Setting Environment Variables
        -----------------------------
        
        Local Environment Variables
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~
        
        If you want to set local remote environment variables for a deployment
        stage, you can simply set them in your ``zappa_settings.json``:
        
        .. code:: javascript
        
            {
                "dev": {
                    ...
                    "environment_variables": {
                        "your_key": "your_value"
                    }
                },
                ...
            }
        
        You can then access these inside your application with:
        
        .. code:: python
        
            import os
            your_value = os.environ.get('your_key')
        
        If your project needs to be aware of the type of environment you're
        deployed to, you'll also be able to get ``SERVERTYPE`` (AWS Lambda),
        ``FRAMEWORK`` (Zappa), ``PROJECT`` (your project name) and ``STAGE``
        (*dev*, *production*, etc.) variables at any time.
        
        Please note that these are not the `AWS Lambda environment
        variables <https://github.com/Miserlou/Zappa/issues/501>`__ that Amazon
        now offers directly. These were implemented long before that feature was
        available, and will not be available through your AWS console.
        
        Remote Environment Variables
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        
        If you want to use remote environment variables to configure your
        application (which is especially useful for things like sensitive
        credentials), you can create a file and place it in an S3 bucket to
        which your Zappa application has access to. To do this, add the
        ``remote_env`` key to zappa\_settings pointing to a file containing a
        flat JSON object, so that each key-value pair on the object will be set
        as an environment variable and value whenever a new lambda instance
        spins up.
        
        For example, to ensure your application has access to the database
        credentials without storing them in your version control, you can add a
        file to S3 with the connection string and load it into the lambda
        environment using the ``remote_env`` configuration setting.
        
        super-secret-config.json (uploaded to my-config-bucket):
        
        .. code:: javascript
        
            {
                "DB_CONNECTION_STRING": "super-secret:database"
            }
        
        zappa\_settings.json:
        
        .. code:: javascript
        
            {
                "dev": {
                    ...
                    "remote_env": "s3://my-config-bucket/super-secret-config.json",
                },
                ...
            }
        
        Now in your application you can use:
        
        .. code:: python
        
            import os
            db_string = os.environ.get('DB_CONNECTION_STRING')
        
        Catching Unhandled Exceptions
        -----------------------------
        
        By default, if an *unhandled* exception happens in your code, Zappa will
        just print the stacktrace into a CloudWatch log. If you wish to use an
        external reporting tool to take note of those exceptions, you can use
        the ``exception_handler`` configuration option.
        
        zappa\_settings.json:
        
        .. code:: javascript
        
            {
                "dev": {
                    ...
                    "exception_handler": "your_module.unhandled_exceptions",
                },
                ...
            }
        
        The function has to accept three arguments: exception, event, and
        context:
        
        your\_module.py
        
        .. code:: python
        
            def unhandled_exception(e, event, context):
                send_to_raygun(e, event)  # gather data you need and send
                return True # Prevent invocation retry
        
        You may still need a similar exception handler inside your application,
        this is just a way to catch exception which happen at the Zappa/WSGI
        layer (typically event-based invocations, misconfigured settings, bad
        Lambda packages, and permissions issues).
        
        By default, AWS Lambda will attempt to retry an event based (non-API
        Gateway, e.g. CloudWatch) invocation if an exception has been thrown.
        However, you can prevent this by returning True, as in example above, so
        Zappa that will not re-raise the uncaught exception, thus preventing AWS
        Lambda from retrying the current invocation.
        
        Using Custom AWS IAM Roles and Policies
        ---------------------------------------
        
        By default, the Zappa client will create and manage the necessary IAM
        policies and roles to execute Zappa applications. However, if you're
        using Zappa in a corporate environment or as part of a continuous
        integration, you may instead want to manually manage your remote
        execution policies instead. (You can specify which *local* profile to
        use for deploying your Zappa application by defining the
        ``profile_name`` setting, which will correspond to a profile in your AWS
        credentials file.)
        
        To manually define the permissions policy of your Zappa execution role,
        you must define the following in your *zappa\_settings.json*:
        
        .. code:: javascript
        
            {
                "dev": {
                    ...
                    "manage_roles": false, // Disable Zappa client managing roles.
                    "role_name": "MyLambdaRole", // Name of your Zappa execution role. Default ZappaExecutionRole.
                    ...
                },
                ...
            }
        
        Ongoing discussion about the minimum policy requirements necessary for a
        Zappa deployment `can be found
        here <https://github.com/Miserlou/Zappa/issues/244>`__.
        
        Globally Available Server-less Architectures
        --------------------------------------------
        
        .. raw:: html
        
           <p align="center">
        
        .. raw:: html
        
           </p>
        
        .. raw:: html
        
           <p align="center">
        
        Click to see slides from ServerlessConf London!
        
        .. raw:: html
        
           </p>
        
        During the ``init`` process, you will be given the option to deploy your
        application "globally." This will allow you to deploy your application
        to all available AWS regions simultaneously in order to provide a
        consistent global speed, increased redundancy, data isolation, and legal
        compliance. You can also choose to deploy only to "primary" locations,
        the AWS regions with ``-1`` in their names.
        
        To learn more about these capabilities, see `these
        slides <https://htmlpreview.github.io/?https://github.com/Miserlou/Talks/blob/master/serverless-london/global.html#0>`__
        from ServerlessConf London.
        
        Raising AWS Service Limits
        --------------------------
        
        Out of the box, AWS sets a limit of `100 concurrent
        executions <http://docs.aws.amazon.com/lambda/latest/dg/limits.html>`__
        for your functions. If you start to breach these limits, you may start
        to see errors like
        ``ClientError: An error occurred (LimitExceededException) when calling the PutTargets.."``
        or something similar.
        
        To avoid this, you can file a `service
        ticket <https://console.aws.amazon.com/support/home#/>`__ with Amazon to
        raise your limits up to the many tens of thousands of concurrent
        executions which you may need. This is a fairly common practice with
        Amazon, designed to prevent you from accidentally creating extremely
        expensive bug reports. So, before raising your service limits, make sure
        that you don't have any rogue scripts which could accidentally create
        tens of thousands of parallel executions that you don't want to pay for.
        
        Zappa Guides
        ============
        
        -  `Django-Zappa tutorial
           (screencast) <https://www.youtube.com/watch?v=plUrbPN0xc8&feature=youtu.be>`__.
        -  `Using Django-Zappa, Part
           1 <https://serverlesscode.com/post/zappa-wsgi-for-python/>`__.
        -  `Using Django-Zappa, Part 2:
           VPCs <https://serverlesscode.com/post/zappa-wsgi-for-python-pt-2/>`__.
        -  `Building Serverless Microservices with Zappa and
           Flask <https://gun.io/blog/serverless-microservices-with-zappa-and-flask/>`__
        -  `Zappa で Hello World するまで
           (Japanese) <http://qiita.com/satoshi_iwashita/items/505492193317819772c7>`__
        -  `How to Deploy Zappa with CloudFront, RDS and
           VPC <https://jinwright.net/how-deploy-serverless-wsgi-app-using-zappa/>`__
        -  `Deploy Flask-Ask to AWS Lambda with Zappa
           (screencast) <https://www.youtube.com/watch?v=mjWV4R2P4ks>`__
        -  `Secure 'Serverless' File Uploads with AWS Lambda, S3, and
           Zappa <http://blog.stratospark.com/secure-serverless-file-uploads-with-aws-lambda-s3-zappa.html>`__
        -  `First Steps with AWS Lambda, Zappa and
           Python <https://andrich.blog/2017/02/12/first-steps-with-aws-lambda-zappa-flask-and-python/>`__
        -  *Your guide here?*
        
        Zappa in the Press
        ==================
        
        -  *`Zappa Serves Python, Minus the
           Servers <http://www.infoworld.com/article/3031665/application-development/zappa-serves-python-web-apps-minus-the-servers.html>`__*
        -  *`Zappa lyfter serverlösa applikationer med
           Python <http://computersweden.idg.se/2.2683/1.649895/zappa-lyfter-python>`__*
        -  *`Interview: Rich Jones on
           Zappa <https://serverlesscode.com/post/rich-jones-interview-django-zappa/>`__*
        -  `Top 10 Python Libraries of
           2016 <https://tryolabs.com/blog/2016/12/20/top-10-python-libraries-of-2016/>`__
        
        Sites Using Zappa
        =================
        
        -  `Zappa.io <https://www.zappa.io>`__ - A simple Zappa homepage
        -  `Zappatista! <https://blog.zappa.io>`__ - The official Zappa blog!
        -  `Mailchimp Signup
           Utility <https://github.com/sasha42/Mailchimp-utility>`__ - A
           microservice for adding people to a mailing list via API.
        -  `Zappa Slack
           Inviter <https://github.com/Miserlou/zappa-slack-inviter>`__ - A
           tiny, server-less service for inviting new users to your Slack
           channel.
        -  `Serverless Image
           Host <https://github.com/Miserlou/serverless-imagehost>`__ - A
           thumbnailing service with Flask, Zappa and Pillow.
        -  `Gigger <https://www.gigger.rocks/>`__ - The live music industry's
           search engine
        -  `Zappa BitTorrent
           Tracker <https://github.com/Miserlou/zappa-bittorrent-tracker>`__ -
           An experimental server-less BitTorrent tracker. Work in progress.
        -  `JankyGlance <https://github.com/Miserlou/JankyGlance>`__ - A
           server-less Yahoo! Pipes replacement.
        -  `LambdaMailer <https://github.com/tryolabs/lambda-mailer>`__ - A
           server-less endpoint for processing a contact form.
        -  `Voter Registration
           Microservice <https://topics.arlingtonva.us/2016/11/voter-registration-search-microservice/>`__
           - Official backup to to the Virginia Department of Elections portal.
        -  `FreePoll Online <https://www.freepoll.online>`__ - A simple and
           awesome say for groups to make decisions.
        -  And many more!
        
        Are you using Zappa? Let us know and we'll list your site here!
        
        Related Projects
        ================
        
        -  `lambda-packages <http://github.com/Miserlou/lambda-packages>`__ -
           Precompiled C-extension packages for AWS Lambda. Used automatically
           by Zappa.
        -  `Mackenzie <http://github.com/Miserlou/Mackenzie>`__ - AWS Lambda
           Infection Toolkit
        -  `zappa-cms <http://github.com/Miserlou/zappa-cms>`__ - A tiny
           server-less CMS for busy hackers. Work in progress.
        -  `flask-ask <https://github.com/johnwheeler/flask-ask>`__ - A
           framework for building Amazon Alexa applications. Uses Zappa for
           deployments.
        -  `zappa-file-widget <https://github.com/anush0247/zappa-file-widget>`__
           - A Django plugin for supporting binary file uploads in Django on
           Zappa.
        -  `zops <https://github.com/bjinwright/zops>`__ - Utilities for teams
           and continuous integrations using Zappa.
        -  `cookiecutter-mobile-backend <https://github.com/narfman0/cookiecutter-mobile-backend/>`__
           - A ``cookiecutter`` Django project with Zappa and S3 uploads
           support.
        -  `zappa-examples <https://github.com/narfman0/zappa-examples/>`__ -
           Flask, Django, image uploads, and more!
        -  `Zappa Docker Image <https://github.com/danielwhatmuff/zappa>`__ - A
           Docker image for running Zappa locally, based on Lambda Docker.
        -  `zappa-django-example <https://github.com/edgarroman/zappa-django-example>`__
           - A complete example for running Django on Zappa.
        -  `zappa-dashing <https://github.com/nikos/zappa-dashing>`__ - Monitor
           your AWS environment (health/metrics) with Zappa and CloudWatch.
        -  `s3env <https://github.com/cameronmaske/s3env>`__ - Manipulate a
           remote Zappa environment variable key/value JSON object file in an S3
           bucket through the CLI.
        -  `zappa\_resize\_image\_on\_fly <https://github.com/wobeng/zappa_resize_image_on_fly>`__
           - Resize images on the fly using Flask, Zappa, Pillow, and
           OpenCV-python.
        -  `gdrive-lambda <https://github.com/richiverse/gdrive-lambda>`__ -
           pass json data to a csv file for end users who use Gdrive across the
           organization.
        -  `travis-build-repeat <https://github.com/bcongdon/travis-build-repeat>`__
           - Repeat TravisCI builds to avoid stale test results.
        
        Hacks
        =====
        
        Zappa goes quite far beyond what Lambda and API Gateway were ever
        intended to handle. As a result, there are quite a few hacks in here
        that allow it to work. Some of those include, but aren't limited to..
        
        -  :sub:`[STRIKEOUT:Using VTL to map body, headers, method, params and
           query strings into JSON, and then turning that into valid WSGI.]`
        -  :sub:`[STRIKEOUT:Attaching response codes to response bodies, Base64
           encoding the whole thing, using that as a regex to route the response
           code, decoding the body in VTL, and mapping the response body to
           that.]`
        -  :sub:`[STRIKEOUT:Packing and *Base58* encoding multiple cookies into
           a single cookie because we can only map one kind.]`
        -  Forcing the case permutations of "Set-Cookie" in order to return
           multiple headers at the same time.
        -  :sub:`[STRIKEOUT:Turning cookie-setting 301/302 responses into 200
           responses with HTML redirects, because we have no way to set headers
           on redirects.]`
        
        Contributing
        ============
        
        This project is still young, so there is still plenty to be done.
        Contributions are more than welcome!
        
        Please file tickets for discussion before submitting patches. Pull
        requests should target ``master`` and should leave Zappa in a
        "shippable" state if merged.
        
        If you are adding a non-trivial amount of new code, please include a
        functioning test in your PR. For AWS calls, we use the ``placebo``
        library, which you can learn to use `in their
        README <https://github.com/garnaat/placebo#usage-as-a-decorator>`__. The
        test suite will be run by `Travis
        CI <https://travis-ci.org/Miserlou/Zappa>`__ once you open a pull
        request.
        
        Please include the GitHub issue or pull request URL that has discussion
        related to your changes as a comment in the code
        (`example <https://github.com/Miserlou/Zappa/blob/fae2925431b820eaedf088a632022e4120a29f89/zappa/zappa.py#L241-L243>`__).
        This greatly helps for project maintainability, as it allows us to trace
        back use cases and explain decision making.
        
        Using a Local Repo
        ------------------
        
        To use the git HEAD, you *probably can't* use ``pip install -e``.
        Instead, you should clone the repo to your machine and then
        ``pip install /path/to/zappa/repo`` or
        ``ln -s /path/to/zappa/repo/zappa zappa`` in your local project.
        
        Support / Development / Training / Consulting
        =============================================
        
        Do you need help with..
        
        -  Porting existing Flask and Django applications to Zappa?
        -  Building new applications and services that scale infinitely?
        -  Reducing your operations and hosting costs?
        -  Adding new custom features into Zappa?
        -  Training your team to use AWS and other server-less paradigms?
        
        Good news! We're currently available for remote and on-site consulting
        for small, large and enterprise teams. Please contact miserlou@gmail.com
        with your needs and let's work together!
        
        .. raw:: html
        
           <p align="center">
        
        .. raw:: html
        
           </p>
        
        .. |Build Status| image:: https://travis-ci.org/Miserlou/Zappa.svg
           :target: https://travis-ci.org/Miserlou/Zappa
        .. |Coverage| image:: https://img.shields.io/coveralls/Miserlou/Zappa.svg
           :target: https://coveralls.io/github/Miserlou/Zappa
        .. |Requirements Status| image:: https://requires.io/github/Miserlou/Zappa/requirements.svg?branch=master
           :target: https://requires.io/github/Miserlou/Zappa/requirements/?branch=master
        .. |PyPI| image:: https://img.shields.io/pypi/v/Zappa.svg
           :target: https://pypi.python.org/pypi/zappa
        .. |Slack| image:: https://img.shields.io/badge/chat-slack-ff69b4.svg
           :target: https://slack.zappa.io/
        .. |Gun.io| image:: https://img.shields.io/badge/made%20by-gun.io-blue.svg
           :target: https://gun.io/
        
Platform: UNKNOWN
Classifier: Environment :: Console
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2.7
Classifier: Topic :: Internet :: WWW/HTTP
Classifier: Topic :: Internet :: WWW/HTTP :: Dynamic Content
