PAYLOAD_FILE without MESSAGE does not work for slack_notify pipe

[Steve Annett]

Hi

In the last example of https://bitbucket.org/atlassian/slack-notify/src/master/ it shows how to use a payload file

script:
  - envsubst < "payload.json.template" > "payload.json"
  - pipe: atlassian/slack-notify:2.0.1
    variables:
      WEBHOOK_URL: $WEBHOOK_URL
      PAYLOAD_FILE: payload.json

But when I try it, with slack-notify:2.0.1, I get

✖ Validation errors: 
MESSAGE:
- required field

[Oleksandr Kyrdan · Accepted solution]

Hi @Steve Annett 

Thank you for your question!

We'll fix it in the future release.

Best regards,
Oleksandr Kyrdan

[Steve Annett]

Thanks!

I can confirm having a blank message works as a workaround for now

script:
  - envsubst < "payload.json.template" > "payload.json"
  - pipe: atlassian/slack-notify:2.0.1
    variables:
      WEBHOOK_URL: $WEBHOOK_URL
      MESSAGE: " "
      PAYLOAD_FILE: payload.json