Cloudflare Developers•3mo ago

any way to use the binding with hono without passing the service url?

I am using several workers and I would like to use one as a gateway and communicate with all of them through service bindings, but is there a way to use the service binding without passing the full URL of the other service? I attach the example

const app = new Hono<{ Bindings: { USERS_WORKER: Fetcher } }>();

app.get("/", async (c) => {
  const res = await c.env.USERS_WORKER.fetch("/");

  const data = await res.json();

  console.log(data);

  return c.text("Hello Hono!");
});

const app = new Hono<{ Bindings: { USERS_WORKER: Fetcher } }>();

app.get("/", async (c) => {
  const res = await c.env.USERS_WORKER.fetch("/");

  const data = await res.json();

  console.log(data);

  return c.text("Hello Hono!");
});

i get this error ✘ [ERROR] TypeError: Invalid URL: / only works if i set the url like this const res = await c.env.USERS_WORKER.fetch("http://localhost:8787/"); But since I have several workers, I'd need to define many variables and I'd like to know if there's a way to save myself that step.

7 Replies

Cyb3r-Jak3•3mo ago

I believe you should be able to do something like const res = await c.env.USERS_WORKER.fetch("http://example/");

lucaspOP•3mo ago

Yes, but I wanted to know if I should do it without putting the URL, since I have several workers and this would save me from having one more variable.

Cyb3r-Jak3•3mo ago

Sorry should of clarified. I don't believe it just has to be a valid URL so for all your requests it could be const res = await c.env.USERS_WORKER.fetch("http://example/<path>"); . I don't think you need to worry about it being a valid hostname

lucaspOP•3mo ago

I got it and it worked! :O. Will it work the same in production???

Cyb3r-Jak3•3mo ago

It should do.

lucaspOP•3mo ago

ty dude!

Radoš•3mo ago

You can use RPC, so you do not have to use fetch and also, you do not have to make it public (no public url). https://developers.cloudflare.com/workers/runtime-apis/rpc/ https://blog.cloudflare.com/javascript-native-rpc/ https://github.com/cloudflare/js-rpc-and-entrypoints-demo

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any way to use the binding with hono without passing the service url?