Response types don't account for `parseSuccessResponseBody`

[wolfy1339]

Yeah, the return type is a problem even without the streaming option too. TypeScript thinks it’s a normal shaped response object, but instead it returns an ArrayBuffer iirc.

Originally posted by @amacneil in octokit/rest.js#12 (comment)

---

Here is the magic required to stream release assets to a file using rest.js, typescript, and async/await:

import { Octokit } from "@octokit/rest";
import { createWriteStream } from "node:fs";
import { join } from "node:path";
import { pipeline } from "node:stream/promises";

async function fetchAsset() {
  const octokit = new Octokit({ auth: process.env.GITHUB_TOKEN });
  const asset = await octokit.rest.repos.getReleaseAsset({
    owner: "foxglove",
    repo: "app",
    asset_id: 12345,
    headers: {
      accept: "application/octet-stream",
    },
    request: {
      parseSuccessResponseBody: false, // required to access response as stream
    },
  });

  const assetStream = asset.data as unknown as NodeJS.ReadableStream;
  const outputFile = createWriteStream(join("outputdir", "file.zip"));
  await pipeline(assetStream, outputFile);
}

Originally posted by @amacneil in octokit/rest.js#12 (comment)

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