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diff --git a/doc/integrations/webhook/incoming.md b/doc/integrations/webhook/incoming.md new file mode 100644 index 000000000..e391cba92 --- /dev/null +++ b/doc/integrations/webhook/incoming.md @@ -0,0 +1,62 @@ +# Incoming Webhooks + +With incoming webhooks practically any external source - once given a URL by you - can post a message to any channel you have access to. This is done through a HTTP POST request with a simple JSON payload. The payload can contain some text, and some simple options to allow the external source to customize the post. + +## Creating the Webhook URL + +To get the incoming webhook URL - where all the HTTP requests will be sent - follow these steps: + +1. Login to your Mattermost account. +2. Open the menu by clicking near your profile picture in the top-left and open Account Settings. +3. Go to the Integrations tab and click the 'Edit' button next to 'Incoming Webhooks'. +4. Use the selector to choose a channel and click the 'Add' button to create the webhook. +5. Your webhook URL will be displayed below in the 'Existing incoming webhooks' section. + + +## Posting a Message + +You can send the message by including a JSON string as the `payload` parameter in a HTTP POST request. +``` +payload={"text": "Hello, this is some text."} +``` + +In addition, if `Content-Type` is specified as `application/json` in the headers of the HTTP request then the body of the request can be direct JSON. +``` +{"text": "Hello, this is some text."} +``` + +It is also possible to post richly formatted messages using [Markdown](../../help/enduser/markdown.md). +``` +payload={"text": "# A Header\nThe _text_ below **the** header."} +``` + +Just like regular posts, the text will be limited to 4000 characters at maximum. + +## Adding Links + +In addition to including links in the standard Markdown format, links can also be specified by enclosing the URL in `<>` brackets +``` +payload={"text": "<http://www.mattermost.com/>"} +``` + +They can also include a `|` character to specify some clickable text. +``` +payload={"text": "Click <http://www.mattermost.com/|here> for a link."} +``` + +## Channel Override + +You can use a single webhook URL to post messages to different channels by overriding the channel. You can do this by adding the channel name - as it is seen in the channel URL - to the request payload. +``` +payload={"channel": "off-topic", "text": "Hello, this is some text."} +``` + +## Finishing up + +Combining everything above, here is an example message made using a curl command: + +``` +curl -i -X POST 'payload={"channel": "off-topic", "text": "Hello, this is some text."}' http://yourmattermost.com/hooks/xxxxxxxxxxxxxxxxxxxxxxxxxx +``` + +A post with that text will be made to the Off-Topic channel. |