deno-fetch-goody

This library offers a fetch wrapper that can:

• automatically add Content-Type header
• directly use objects for body as json (see below)
• send form, formData, qs (query string) easily from objects
• accept a timeout option and abort when timeout is reached
• accept a retry option and retry the request when it throws
• accept a retryDelay option to wait before retrying. it can be a function. further retries can be cancelled as well!
• add Accept header with value application/json, text/plain, */* if not already set by you
• set global headers when creating the wrapper
• set a baseURL when creating the wrapper
• add interceptors when creating the wrapper or for individual requests

Deno v1.11+ is required.

usage

you can import wrapFetch from mod.ts file.

import { wrapFetch } from "https://deno.land/x/[email protected]/mod.ts";
// or
import { wrapFetch } from "jsr:@jd1378/fetch-goody@^7.0.6";

wrapFetch

// this simple
const wrappedfetch = wrapFetch();

Or

// you can also pass your own wrapped fetch function, allowing for wrapping fetch multiple times
const wrappedfetch = wrapFetch({ fetch: yourFetch });

You can also add global interceptors:

const wrappedfetch = wrapFetch({
  interceptors: {
    request(init: ExtendedRequest) {
      // add some header before each request is sent
      // for example add some headers from your cookie-jar
    },
  },
});

using the new wrappedfetch

// for sending a multipart/form-data body now you should use `formData`.
const resp1 = await wrappedfetch("url", {
  form: {
    "foo": "bar",
  },
}); // sets method to POST by default and converts object to application/x-www-form-urlencoded.

// or

const resp2 = await wrappedfetch("url", {
  body: {
    "foo": "bar",
  },
}); // is sent as json and corresponding header is set
// also if method is not defined for this, it will be set as POST

// other features:

// adding query string

const resp3 = await wrappedfetch("url", {
  qs: {
    "foo": "bar",
  },
}); // results to url being sent to be "url?foo=bar"

// adding interceptors where you can throw errors and other stuff

const resp4 = await wrappedfetch("url", {
  interceptors: {
    response(init: ExtendedRequest, response: Response) {
      if (response.status > 200) {
        throw new Error("yada");
      }
    },
  },
});

test

fetch wrapper tests require network access to emulate server.

run with deno test --allow-net