I'm a page admin and trying to debug messanger bot. Recently, I've changed the password and now when I try to reply to myself in messager via API I get an error
{
"error": {
"message": "Error validating access token: The session has been invalidated because the user changed their password or Facebook has changed the session for security reasons.",
"type": "OAuthException",
"code": 190,
"error_subcode": 460
}
}
The thing is I don't have an access token, to begin with, the doc says
To send messages to someone on Messenger, the conversation must be initiated by the user.
It also says
Apps in Development Mode, are restricted to message people that have a role in the app.
I've tried to
Recreate page token
Block/Unblock page and delete conversion
Tried to remove myself from admins, but that's impossible since I'm the only admin
The only option I see left is to remove the app altogether and create a new one, but that doesn't seem like a good solution
This has nothing to do with the fact that the user needs to message your page first, before the bot can respond.
Your bot needs a page token to perform its actions, and according to the error message, the one you have been using, had expired.
So the token you got set in your bot configuration needs to be replaced with a fresh, valid one.
Related
When I try to get the Messages sent to my Facebook Page, which is linked to Messenger chatbot I get the following error:
{
"error": {
"message": "(#100) Tried accessing nonexisting field (messages) on node type (User)",
"type": "OAuthException",
"code": 100,
"fbtrace_id": "A5W_BFDXx9GgriZb697u5zv
"
}
}
Here is also an image of the output:
The Access Token is valid for sure. I have tested below:
Note that the Page is neither Business Verified, not Individual verified. I don't know if this plays a role. However, even though the Page Access Token seems correct, I can't run the GET query.
Update - Use Page Access Token
https://developers.facebook.com/docs/graph-api/reference/page/ doesn’t mention the messages edge any more, but how to use it to send messages, is explained as part of the Messenger API documentation:
https://developers.facebook.com/docs/messenger-platform/reference/send-api/
So, /me/messages is the correct endpoint for that, to be used with a page access token. And since sending messages is a “creating” action, it needs to be a POST request.
Be aware though that you can not just arbitrarily send messages whenever and to whomever you want - usually, the user needs to make contact with your page first, so that your bot can then respond to that. The details of the different types of messaging, and their restrictions, are explained unter https://developers.facebook.com/docs/messenger-platform/send-messages
I have a facebook application, not yet submitted to FB for permission review.
The app is intended to allow user to post and reply to other people's post as their own administrated page.
Upon authorization, the application would request the following permission
Publish action
Publish Pages
Manage Pages
I used my own account, with tester role in the app, to granted all requested permission and verified the result in permission is indeed there in my app settings for the application. I have also verified that my account is an administrator of the page I intend to reply as.
It all seems ok until I tried to post a reply to the API using the page token
https://graph.facebook.com/postid/comments
I receive an error:
{
"error": {
"message": "(#200) You do not have sufficient permissions to perform this action",
"type": "OAuthException",
"code": 200
}
}
I can't think of any reason why the permission is missing. I understand that the three permissions need to be approved by Facebook eventually, but to get approval, I'd need to get my app up running for testing first. Is there anything I'm missing here?
recently we encountered some strange behavior of server side access token. It expires in very short period (about 15 min). Scenario is following: User login to our page via facebook (server side) and we store access token. Some actions on our page can trigger post /feed. After few feed posts we suddenly started to getting error 400 and error 401.
Error 400 is probably due to limit of number of posts, but after error 401 access token becomes expired.
Every action respond with:
{
"error": {
"message": "Error validating access token: Session has expired at unix
time 1346321603. The current unix time is 1346320983.",
"type": "OAuthException",
"code": 190
"error_subcode": 463
}
Its hard to reproduce this behavior but we reproduced it couple of times on test environment (so we know when access token is created, that user didn't deauthorize app, nor change password).
Any ideas why access token becomes expired?
I double check that "Remove offline_access permission" was enabled on application advanced settings so i can get 60 days server side token.
Not sure why, but all access token have expire "in about hour" reported from access token debugger.
I created new application (also with "Remove offline_access permission") and now i got tokens which expires in 2 months.
Not sure why, but answer was to create new application.
By default facebook assigns a short lived access token. You need to request for long lived token.
Read the doc for how to get it : http://developers.facebook.com/roadmap/offline-access-removal/#extend_token
EDIT:
Previous link doesn't work anymore, use following link
https://developers.facebook.com/docs/roadmap/completed-changes/offline-access-removal/
I'm trying to post a score from my server.
I have my app set up as a game.
I've got my app access token.
I'm POSTing to https://graph.facebook.com/USER_ID/scores
I have authorized and given publish_stream and publish_actions permissions to my app for the USER_ID (which is me).
However, an error is telling me that I need a user access token for that action, which I don't as Facebook states here: https://developers.facebook.com/docs/score/
Create or update a score for a user
You can post a score or a user by issuing an HTTP POST request to
/USER_ID/scores with the app access_token as long as you have the
publish_actions permission.
I've seen a similar question but it was unanswered: Facebook Graph API Explorer won't POST scores (they've ended up creating a new app, which is not a real solution)
To verify that it's not me who is incorrectly using the API, I went to Graph API explorer and tried it also there with the same access token, no luck:
Funny, that if I follow what it says and try the same with my user access token, it then says: This method must be called with an app access_token.
Is there something that I'm missing or is there a bug with the Graph API?
Thanks,
Can.
It looks like you have everything correct, but there's one relatively little-known case which will produce that error message.
Check the 'App Type' field in the Advanced Settings:
If this is set to 'Native/Desktop' instead of 'Web' in the Advanced settings, it's assumed that your app's binary/native distribution contains the app secret.
In this configuration, API calls made with the app access token are untrusted, effectively the token is completely ignored.
Change the app settings back to 'Web' and you should be able to post or delete Scores and/or Achievements with the App Access Token
If this is the issue, you can quickly verify if with a call to
https://graph.facebook.com/app?fields=migrations&access_token=[APP ACCESS TOKEN HERE]
In 'Web' mode, the response contains the migration settings for the app, something like:
{
"migrations": {
"secure_stream_urls": false,
"expiring_offline_access_tokens": false,
"requires_login_secret": false,
//etc
}
In 'Native/Desktop' mode, the app access token is untrusted, so you can't access the app's private data, and the response is:
{
"error": {
"message": "An unknown error has occurred.",
"type": "OAuthException",
"code": 1
}
}
I've a facebook application and a group for that application. Is it possible to make the application automatically post on the group. As far as posting is concern, its ok but how to give the application permission to post on the group?
I'm using facebook graph explorer to test this
https://graph.facebook.com/GROUP_ID/feed, method Post and adding a field 'link' with URL 'http://www.google.com' and selecting application as the application i want. I'm getting this error:
{
"error": {
"message": "An unexpected error has occurred. Please retry your request later.",
"type": "OAuthException",
"code": 2
}
}
The error doesn’t exactly say this, but I’d guess it’s thrown because your not sending a valid access token.
Get a user access token from one of the users that is allowed to post to that group’s wall.
The problem was a permission problem and the permission needed was user_groups,publish_stream