Chen•3mo ago

Is it possible to change the base path?

I have my trpc server on an endpoint: api.examples.com/trpc - this should be the root, and trpc handles anything subsequent. But querying this with a client, I get the error:

TRPCError: No procedure found on path "trpc/me.details"

TRPCError: No procedure found on path "trpc/me.details"

Is it possible to have the trpc server factor out the /trpc part of the path?

1 Reply

ChenOP•2mo ago

I'm using the awsLambdaRequestHandler from @trpc/server/adapters/aws-lambda:

// functions/.../index.ts
export const handler = awsLambdaRequestHandler({
  router: appRouter,
  createContext: createTrpcContext,
});

// functions/.../index.ts
export const handler = awsLambdaRequestHandler({
  router: appRouter,
  createContext: createTrpcContext,
});

And SST:

// sst.config.ts
export const trpc = new sst.aws.Function("Api", {
  handler: "packages/functions/src/api/index.handler",
  runtime: "nodejs20.x",
  memory: "128 MB",
  link: [database, auth],
  url: true,
});

export const apiRouter = new sst.aws.Router("ApiRouter", {
  domain: {
    name: "api." + domain,
    dns: sst.cloudflare.dns(),
  },
  routes: {
    "/trpc/*": trpc.url,
  },
});

// sst.config.ts
export const trpc = new sst.aws.Function("Api", {
  handler: "packages/functions/src/api/index.handler",
  runtime: "nodejs20.x",
  memory: "128 MB",
  link: [database, auth],
  url: true,
});

export const apiRouter = new sst.aws.Router("ApiRouter", {
  domain: {
    name: "api." + domain,
    dns: sst.cloudflare.dns(),
  },
  routes: {
    "/trpc/*": trpc.url,
  },
});

For what it's worth, I've done this as a workaround:

// functions/.../index.ts
const trpcHandler = awsLambdaRequestHandler({
  router: appRouter,
  createContext: createTrpcContext,
});

export const handler: APIGatewayProxyHandlerV2 = async (event, context) => {
  if (event.rawPath.startsWith("/trpc")) {
    event.rawPath = event.rawPath.slice(5);
    if (event.rawPath === "") {
      event.rawPath = "/";
    }
  }

  if (event.requestContext?.http?.path) {
    event.requestContext.http.path = event.rawPath;
  }

  return trpcHandler(event, context);
};

// functions/.../index.ts
const trpcHandler = awsLambdaRequestHandler({
  router: appRouter,
  createContext: createTrpcContext,
});

export const handler: APIGatewayProxyHandlerV2 = async (event, context) => {
  if (event.rawPath.startsWith("/trpc")) {
    event.rawPath = event.rawPath.slice(5);
    if (event.rawPath === "") {
      event.rawPath = "/";
    }
  }

  if (event.requestContext?.http?.path) {
    event.requestContext.http.path = event.rawPath;
  }

  return trpcHandler(event, context);
};