Never-expiring Facebook access token steps (v2.8+, 2016+) from http://stackoverflow.com/a/28418469/933621

never-expiring-fb-page-access-token-steps.md

Steps taken from http://stackoverflow.com/a/28418469/933621 (Dude you're a life saver!)

• Create Facebook App

  1. Go to My Apps.
  2. Click "+ Add a New App".
  3. Setup a website app.

  You don't need to change its permissions or anything. You just need an app that wont go away before you're done with your access token.

• Get User Short-Lived Access Token

  1. Go to the Graph API Explorer.
  2. Select the application you want to get the access token for (in the "Application" drop-down menu, not the "My Apps" menu).
  3. Click "Get Token" > "Get User Access Token".
  4. In the pop-up, under the "Extended Permissions" tab, check "manage_pages".
  5. Click "Get Access Token".
  6. Grant access from a Facebook account that has access to manage the target page. Note that if this user loses access the final, never-expiring access token will likely stop working.

  Token that appears in the "Access Token" field is your short-lived access token.

• Generate Long-Lived Access Token

  1. Make a call via Postman to https://graph.facebook.com/v2.8/oauth/access_token?grant_type=fb_exchange_token&client_id={app_id}&client_secret={app_secret}&fb_exchange_token={short_lived_token}

  The response should look like this: access_token=ABC123&expires=5182959

  ABC123 will be your long-lived access token. You can put it into the Access Token Debugger to verify. Under "Expires" it should have something like "2 months".

• Get User ID

  1. Using the long-lived access token, make a GET request to

  https://graph.facebook.com/v2.8/me?access_token={long_lived_access_token}

  The id field is your account ID. You'll need it for the next step.

• Get Permanent Page Access Token

  1. Make a GET request to

  https://graph.facebook.com/v2.8/{account_id}/accounts?access_token={long_lived_access_token}

The JSON response should have a data field under which is an array of items the user has access to. Find the item for the page you want the permanent access token from. The access_token field should have your permanent access token. Copy it and test it in the Access Token Debugger. Under "Expires" it should say "Never".