GraphQL APIs

Space Cloud provides realtime CRUD and file storage APIs for various data stores with authorization and access controls. However, in many cases, you would need to write some backend code for custom business logic. (example: integrating third-party APIs like payment gateways)

GraphQL APIs for microservices brings your restful APIs to Space Cloud’s GraphQL layer in minutes.

Space Cloud can trigger your remote HTTP services and provide a unified GraphQL API layer for your app. All you need to do is write an HTTP service and provide its URL and endpoints to Space Cloud. You can write these services in any language or framework. Space Cloud even lets you perform joins on your database and remote services via GraphQL.

This is what Space Cloud running with “Remote Services” looks like:

Remote service architecture

Use caseslink

You should use Remote Services when you want to synchronously trigger certain business logic.

Note: If you want to trigger asynchronous business logic in the background, then you should see the Eventing Module.

Following are a few use cases of Remote Services:

  • Custom business logic.
  • Third-party integrations (e.g., Firebase Auth, Mailchimp, Stripe).
  • Extending support for data stores which Space Cloud doesn’t support yet.

How it workslink

You write a custom HTTP service in any language or framework. Then, you register this Restful APIs to Space Cloud via Mission Control with a unique service name. Each service has an URL and can have multiple endpoints (each with a unique endpoint name within that service, an endpoint path and HTTP method). These services can be deployed anywhere as long as Space Cloud can reach them.

Your frontend can query these services now via the unified APIs of Space Cloud. The frontend mentions a service name and endpoint name along with optional parameters. When Space Cloud gets a request for a remote service from the frontend, it makes an HTTP request to the corresponding remote endpoint (service URL + endpoint path) with a body containing the parameters sent by the frontend.

Have a technical question?

Improve the docs!