"Invalid OAuth access token." for instagram_oembed
I have gone through the required steps to create an app, add "oEmbed Read" permissions to it, submit it for app review, get approved, and finally generate an access token.
To be clear, I was able to submit the app for review and get apprived. The "App Review Status" says "Live" for the Oembed Read feature. I have access to the /instagram_oembed endpoint according to the Permissions and Features section of my app.
The very last step is getting a working access_token, and this is where I am stuck. I am following these instructions.
I am able to generate a token but when I use it to request instagram posts like this:
https://graph.facebook.com/v12.0/instagram_oembed?url={instagram_post_url}&access_token={access_token}
I get "Invalid OAuth access token."
Debugging it via Access Token Debugger
It says the token is valid with the following scope: user_profile, user_media
I am also able to successfully exchange the "short-lived" token for a 3 month version, which also looks valid via the Access Token Debugger but also generates the same "invalid Oauth access token" response.
Any help is greatly appreciated
Turns out I was following instructions for User Tokens, but what you need is an App Token.
See here: https://developers.facebook.com/docs/facebook-login/access-tokens#apptokens