Sending JSON to Slack in a HTTP POST request

Question

I\'m trying to send a message using Slack\'s chat.postMessage API call. I have no problems encoding my test messages within HTTP GET, but I\'m trying to achieve the same res

Answer 1

Okay, after re-reading the documentation I found it:

JSON-encoded bodies

For these write methods, you may alternatively send your HTTP POST data as Content-type: application/json.

There are some ground rules:

• You must explicitly set the Content-type HTTP header to application/json. We won't interpret your POST body as such without it.
• You must transmit your token as a bearer token in the Authorization HTTP header.
• You cannot send your token as part of the query string or as an attribute in your posted JSON.
• Do not mix arguments between query string, URL-encoded POST body, and JSON attributes. Choose one approach per request.
• Providing an explicitly null value for an attribute will result in whichever default behavior is assigned to it.

And the curl example. Notice the Authorization header.

curl -X POST \
     -H 'Authorization: Bearer xoxb-1234-56789abcdefghijklmnop' \
     -H 'Content-type: application/json; charset=utf-8' \
    --data '{"channel":"C061EG9SL","text":""..."}' \
https://slack.com/api/chat.postMessage