Instagram API in Node.js — Native fetch, No Package to Install

Node.js — error handling

const BASE = "https://api.socialscrape.dev/v1";
const KEY = process.env.INSCRAPE_KEY;

class InScrapeError extends Error {
  constructor(status, code, message) {
    super(`${status} ${code}: ${message}`);
    this.status = status;
    this.code = code;
    this.retryable = status >= 500;
  }
}

async function call(path, params = {}) {
  const url = new URL(`${BASE}${path}`);
  for (const [key, value] of Object.entries(params)) url.searchParams.set(key, String(value));

  let res;
  try {
    res = await fetch(url, { headers: { "x-api-key": KEY }, signal: AbortSignal.timeout(30_000) });
  } catch (err) {
    // TimeoutError or a transport failure: no response, therefore no charge.
    throw new InScrapeError(0, err.name, "no response");
  }

  const body = await res.json();
  if (res.status === 200) return body;

  throw new InScrapeError(res.status, body.error.code, body.error.message);
}

async function callWithRetry(path, params, attempts = 3) {
  for (let attempt = 0; attempt < attempts; attempt += 1) {
    try {
      return await call(path, params);
    } catch (err) {
      if (!err.retryable || attempt === attempts - 1) throw err;
      await new Promise((r) => setTimeout(r, 2 ** attempt * 1000));
    }
  }
}

try {
  const body = await callWithRetry("/instagram/profile", { handle: "natgeo" });
  if (body.data?.profile === null) {
    console.log(body.data.profile, "credits charged:", body.credits_charged);
  } else {
    console.log(body.data.profile.follower_count, "credits left:", body.credits_remaining);
  }
} catch (err) {
  if (err.code === "INSUFFICIENT_CREDITS") console.log("out of credits");
  else if (err.code === "ENDPOINT_NOT_FOUND") console.log("API route not found");
  else if (err.code === "INVALID_API_KEY") console.log("check INSCRAPE_KEY");
  else throw err;
}