This commit migrates zulip outging webhook payload to
/zulip-outgoing-webhook:post in OpenAPI.
Since this migrates the last payloads from api/fixtures.json to
OpenAPI, this commit removes api/fixtures.json file and the functions
accessing the file.
Tweaked by tabbott to further remove an unnecessary conditional.
I rewrote the section explaining what the
endpoint sends back to the server. This fixes
a few typos, emphasizes the normal case, and
starts to favor "content" as the key for
content.
This switches us to use the correct timestamp, service_id and token
formats. The 'service_id' should be the ID of the bot user. The token
should be a sample token generated from 'random_api_key()'.
Anders Kaseorg
orientor
shubhamgupta2956
Tim Abbott
Eeshan Garg
Steve Howell
Rhea Parekh
Robert Hönig
vaibhav