I collect Instagram data for <私が収集しているもの・用途 例: hashtag research for my content projects>, and at some point "just call the API in a loop" stopped being fast enough. Here's how I went from a single request to concurrent fetching in Python, using HikerAPI — a REST API for Instagram data (auth is one header, from $0.001/request, 100 free requests to start).

The starting point: one request

Everything begins with a plain synchronous call:

import requests

headers = {"x-access-key": "YOUR_KEY"}