How can fetch function work with a base url?

[saibing]

const result = await fetch("/u-route/baas/doc");
console.log(result);

this code worked in browser but does not in deno. deno will output as follow:

ompile file:///data/saibing/git/ts/deno/fetch.ts
error: Uncaught URIError: relative URL without a base
► $deno$/errors.ts:35:13
    at constructError ($deno$/errors.ts:35:13)
    at unwrapResponse ($deno$/dispatch_json.ts:41:12)
    at sendAsync ($deno$/dispatch_json.ts:96:10)

[ry]

What would you expect to happen?

[kitsonk]

Ref #203 as well.

[nayeemrmn]

The only way thing that would makes sense is for it to work relative to cwd (or the fs root for absolute paths), the resource resolution root. so ref #2150 and see #4038 (comment) onwards.

[saibing]

@ry

I recently tried to use deno as my testing tool for a web server project. I want to reuse the front-end SDK library, which uses a lot of this kind URL:

   async verify (params: Object) {
     let url = "/baas/auth/v1.0/resetpassword/step?step=verify";
     const resp = await fetch (url, {
       method: "POST",
       headers: {
         "content-type": "application / json"
       },
       credentials: "same-origin",
       body: JSON.stringify (params)
     });
     const data = await resp.json ();
     if (data.resCode! == "0") {
       throw data;
     }
     return resp.headers.get ("reset-password-token");
   }

I want to call the verify function directly in the deno test code. I don't want to modify the verify function because there are many similar functions of this kind.

[ry]

@saibing Sure, I appreciate the goal, but where should deno get the response for "/baas/auth/v1.0/resetpassword/step?step=verify" ? There's no obvious choice for where to send the request to.

[igotfr]

@saibing Sure, I appreciate the goal, but where should deno get the response for "/baas/auth/v1.0/resetpassword/step?step=verify" ? There's no obvious choice for where to send the request to.

const response = await fetch("./instagram.json")
.then(dados => dados.json());

console.log(response);

error: Uncaught URIError: relative URL without a base
at unwrapResponse (rt/10_dispatch_json.js:24:13)
at sendAsync (rt/10_dispatch_json.js:75:12)
at async fetch (rt/26_fetch.js:279:29)
at async file:///home/notecomm/testes/fetchDeno.ts:1:18

[nayeemrmn]

Forgot about this issue. Update: this is answered and blocked by #4981. Any relative URL (an origin-less absolute path is still a relative URL) should be relative to globalThis.location, which we don't have yet.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.