Slack webhooks integration

[beauthi]

Slack webhooks require a specific format, e.g., body should look like

{ "text" : "content of the message" }

ref: https://api.slack.com/messaging/webhooks#advanced_message_formatting
It would be nice to have specific integration for Slack, as it's difficult to use them as is right now.

[light-bit]

What is not working for you right now? I struggled a bit at first, but got everything working with WebHook integration to my Slack.

[beauthi]

@light-bit What's your configuration?
I currently have something like

    - WEBHOOK=true
    - WEBHOOK_URL=https://hooks.slack.com/services/ABC/DEF/ghi
    - WEBHOOK_METHOD=POST
    - WEBHOOK_TIMEOUT=60
    - WEBHOOK_TYPE=application/json

I'm still unsure how to use WEBHOOK_BODY.

[light-bit]

@beauthi
This is my config:

    - WEBHOOK=true
    - WEBHOOK_URL=https://hooks.slack.com/services/XXXX/XXXX/XXXXX
    - WEBHOOK_METHOD=POST
    - 'WEBHOOK_BODY={"attachments": [{"color": "78cfa4","fallback": "$${{items_available}} at $${{store_name}} for €$${{price}}","title": "$${{store_name}}","thumb_url": "$${{item_logo}}","mrkdwn_in": ["text","attachments","fields","value"],"fields": [{"value": "Quantity: $${{items_available}}\n\n","short": false},{"value": "Price: $${{price}} $${{currency}}\n\n","short": false},{"value": "Pick-up: $${{pickupdate}}\n\n","short": false},{"value": "<https://share.toogoodtogo.com/item/$${{item_id}}|Order>","short": false}]}]}'
    - WEBHOOK_TYPE=application/json
    - WEBHOOK_TIMEOUT=60

That will result in the following:

Note: I have hardcoded € for the notification, because I think it looks better, you could use $${{currency}} as well. Also, the environment variables inWEBHOOK_BODY need to be escaped, thus using the 's.