OAuthAccessTokenException-The access_token provided is invalid Instagram new api

Question

I am integrating Instagram login into my application. As per the provided documentation in bellow link: https://www.instagram.com/developer/authentication/

For gett

Answer 1

It is very poorly documented by Facebook and they made it very difficult. I will go through the steps so that you do not suffer as much I suffered...

{
    "access_token": "IGQVJVT2hod1dEN3N0UnBwTWllb3pZAaENnS0VveHZARSkNwLVpwS2Uxc0w2VUVOeEJxaUdkMnlQRkdzVGJudnh0cXREZA3BvWHNELTR1UndsOWR2MXFST0JlUG45TEdFVnhiblhScVNlYlJtLUNwQU5Kc2ltZAy1LUlRMaF9ZA",
    "user_id": 17841406439718884
}

This is a short-lived token which expires in 1 hour; therefore you should use that to generate a long-lived token. before it expires: To do so used that piece link in postman

 "https://graph.instagram.com/access_token
  ?grant_type=ig_exchange_token
  &client_secret={instagram-app-secret}
  &access_token={short-lived-access-token}"

Then you will get as a response

{
  "access_token":"{long-lived-user-access-token}",
  "token_type": "bearer",
  "expires_in": 5183944  // Number of seconds until token expires
}

This is your long term access token and it shows the expiration date which 60 days. Then you should use the request lin

GET https://graph.instagram.com/{media-id}
  ?fields=id,caption,username,
  &access_token={access-token}// Long Lived token

See their website for more data query: https://developers.facebook.com/docs/instagram-basic-display-api/reference/user#fields

I hope that helps you to solve the problem. I am writing a piece code to refresh the long-lived token before its expiration in 60 days. Once I finish it I will share that as well