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InstagramApi.md

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Instagram API usage

The instagram API is really a pain. Here, I tried to document the needed steps to get to an image from a feed. In short:

  • Create a "facebook app"
  • Configure "Instagram Basic Display"
  • Add test user to Instagram "app"
  • Get authentication code (only with a browser - no automatic here)
  • Convert authentication code into a short-live token
  • Convert short-live token into a long-live token (from 1h to 60days)
  • Refresh a long-live token (optional - only if expire date is near)
  • Request the feed from instagram with it's posts

In detail:

Preperations

First of all follow steps 1-3 of the officially documenation: https://developers.facebook.com/docs/instagram-basic-display-api/getting-started

Write down this values (needed in the next steps):

  • Instagram App ID (client id)
  • Instagram App secret
  • Return/Redirect URL (important: every character counts - even the trailing slash!)

The interface

1. Get authentication code (Browser needed for this action)

Usage in browser like: https://api.instagram.com/oauth/authorize?client_id=123456&redirect_uri=https://www.in2code.de/&scope=user_profile,user_media&response_type=code

This will redirect the browser to something like: https://www.in2code.de/?code=codeABC1234#_

The extracted code is the GET param - so: codeABC1234

Note: Code is needed for next step

2. Get short-live access Token (valid for 60min)

Usage via CURL on cli: curl -X POST https://api.instagram.com/oauth/access_token -F client_id=123456 -F client_secret=123secret -F grant_type=authorization_code -F redirect_uri=https://www.in2code.de/ -F code=codeABC1234

Example return value as JSON: {"access_token": "token1234567", "user_id": 98765432}

Note: User ID is important for step 4, access_token for the next step

3. Change short-live to long-live Token (valid for 60days)

Usage via CURL on cli: curl -i -X GET "https://graph.instagram.com/access_token?grant_type=ig_exchange_token&client_secret=123secret&access_token=token1234567"

Example return value as JSON: {"access_token":"token987654","token_type":"bearer","expires_in":5184000}

Note: access_token is renewed here

3a. Refresh a long-live token (needs a valid long-live token)

Usage via CURL on cli: curl -i -X GET "https://graph.instagram.com/refresh_access_token?grant_type=ig_refresh_token&access_token=token987654"

Example return value as JSON: {"access_token":"newtoken987654","token_type":"bearer","expires_in":5184000}

Note: access_token is renewed here

4. Request a feed from instagram by user

Usage via CURL on cli: curl -X GET 'https://graph.instagram.com/98765432/media/?fields=id,username,media,caption,id,media_type,media_url,permalink,thumbnail_url,timestamp,username,children&access_token=newtoken987654'

Example return value as JSON: {"data":[{"id":"17883083885121876","username":"in2code.de","caption":"Nice image","media_type":"IMAGE","media_url":"https:\/\/scontent-frt3-1.cdninstagram.com...","permalink":"https:\/\/www.instagram.com\/p\/CMOnBpsM0Rn\/","timestamp":"2021-03-12T14:27:57+0000"},{...}],"paging":{...}}