onOriginRequest hook

The onOriginRequest hook is called whenever the resolver needs to call a remote service. It can be enabled for all Operations, or for specific ones. Using this hook, you're able to completely rewrite the request, headers, etc.

This hook is useful, e.g. when you'd like to sign requests or when you have to get a one time short-lived access token.

The onOriginRequest hook is called with the following parameters:

• user: The user object when the user is authenticated
• clientRequest: The original client request object, including Headers
• log: The logger object
• operations: The operations client, used to call other (internal) operations
• request: The HTTP request to be sent to the remote service
• operation: The operation (name and type) that triggered the hook.

The hook must return a Promise to one of:

• A WunderGraphRequest representing the new request to be sent
• SKIP to skip the hook and use the original request
• CANCEL to cancel the HTTP request entirely

Additionally, at configuration time it is possible to decide which operations will trigger this hook. Setting enableForAllOperations: true will call the hook in every operation, while setting it to false and specifying individual operation names in enableForOperations property allows for more fine grained control.

With the operations client, you're able to securely call into all defined Operations, e.g. to talk to a database or another service to enrich a response or manipulate the inputs of an Operation.

// wundergraph.server.ts
export default configureWunderGraphServer(() => ({
  hooks: {
    global: {
      httpTransport: {
        onOriginRequest: {
          enableForAllOperations: true, // Trigger this hook for all operations
          hook: async ({ request }) => {
            request.headers.set('X-Wundergraph-Test', 'test');
            console.log('onOriginRequest', request.headers);
            return request;
          },
        },
      },
    },
  },
}));