I have a slack instance where I'm the only user (so far). I'm attempting to post a simple "hello world" message using the bot account so the message does not show up as coming from my account.
$url = "https://slack.com/api/chat.postMessage?token=xoxb-XXXXXX&channel=general&text=hello%20world";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$head = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
When I post using the xoxp-XXXX oAuth token it works great, except that it comes from my account. When I post using the xoxb-XXXX token, I receive a "error": "not_in_channel" reply. And I've received chat:write:user user scope error - though I've granted all 50 permissions to my app.
How do I set my slack application to allow this write to occur from the bot account on the application rather than from my account?
The solution is simple.
bot scope as a bot user. bot access token