Google Cloud Platform

Creating an API server

You must define an API server that uses the API or APIs you have created. To define an API server:

  1. Create a separate module, for example, (you can use any name you want). The following sample shows what you would need to add to this file:

    import endpoints
    import your_api
    application = endpoints.api_server([your_api.yourApi])

    where your_api is the name of the API you are exposing. Notice that if the API is implemented in several classes, your_api is the collection of classes, as described in Creating an API Implemented with Multiple Classes .

    Notice that we describe using a separate module for the API server: this is not a requirement! If you are defining multiple APIs (remote.Service subclasses) that are defined in multiple files, it might be preferable to have a separate module for your API Server in order to import all these class files. However, alternatively, you could just add the required endpoints.api_server code shown above to the module where you define your API. If you are defining only a single API, it may be preferable to define the API server in the same file where you define your API because it doesn't need to import any other classes.

  2. In your app.yaml file, map the API server you just created to the endpoints location as follows:

    # Endpoints handler
    - url: /_ah/spi/.*
      script: services.application

    where services is the file name you used for your API server module. Notice that the endpoints path must be /_ah/spi relative to the application. Although applications send their requests to /_ah/api, the Endpoints backend actually handles these requests at the path /_ah/spi.

  3. Set the runtime to Python 2.7, since Endpoints is no longer available in the Python 2.5 runtime:

    application: your-app-id
    version: 1
    runtime: python27
    api_version: 1
  4. Add Endpoints to the Libraries section of app.yaml, since the Endpoints library is not included by default:

    - name: endpoints
      version: 1.0

    Note that you can specify the desired Endpoints library version. (Currently, the only version available is the GA version, 1.0.)