I’m trying to submit a post via the REST API.
I am able to authenticate.
However, when trying to submit the post, I get a the error “You do not have the appropriate permissions”.
Steps to reproduce
I’m using Mattermost preview version 3.4.0 running in Docker.
My request is the following:
Request body:
{“user_id”:“dm1”,“message”:“First test 12345.”,“channel_id”:“upmx6ed7f7b3dmazncjzmoaric”}
Expected behavior
I expect a response with status code 200 and the message should be added to the message stream.
Observed behavior
I got the following error response:
{“id”:“api.context.permissions.app_error”,“message”:“You do not have the appropriate permissions”,“detailed_error”:"",“request_id”:“d46p13oujpgi3bh3g6n1kdru5a”,“status_code”:403}
What I’ve tried and didn’t work:
Using “town-square” as the channel id. This gave another error:
{“id”:“api.context.404.app_error”,“message”:“Sorry, we could not find the page.”,“detailed_error”:“There doesn’t appear to be an api call for the url=’/api/v3/teams/teem1/channels/town-square/posts/create’. Typo? are you missing a team_id or user_id as part of the url?”,“status_code”:404}
I was having a similar issue earlier today, have you tried using the id for the team rather than it’s name?
If I POST to:
http://localhost:8065/api/v3/teams/development/channels/8yce4jb34irc9mrkjcnj7k8p1a/posts/create {"channel_id": "8yce4jb34irc9mrkjcnj7k8p1a", "message": "Message from API!"}
I get the same error you are reporting, however if I try:
http://localhost:8065/api/v3/teams/t8wxrxbwwtbwfbuteahkigunry/channels/8yce4jb34irc9mrkjcnj7k8p1a/posts/create {"channel_id": "8yce4jb34irc9mrkjcnj7k8p1a", "message": "Message from API!"}
I get the expected response, and my message is posted to the channel on my Mattermost server.
As a side note, I’ve noticed that using the id or name of the team when returning a channel list give different results.
http://localhost:8065/api/v3/teams/t8wxrxbwwtbwfbuteahkigunry/channels/ is returning all expected channels (channels, private groups and direct messages).
While http://localhost:8065/api/v3/teams/development/channels/ is only returning a list of channels for direct messages.
Hopefully this helps, I’ve only been looking at the API for a couple of days but happy to help where I can.
