Failed to parse PAYLOAD_FILE payload.json: invalid JSON provided

Edgar Khimich_mhteeu

Hello guys 
Trying to integrate slack messages in my pipeline but receiving an "Invalid JSON provided" error. 

This is my pipeline: 

pipelines:
default:
    - step:
name: Slack Notification
script:
          - apt-get update && apt-get install gettext-base
          - envsubst < ./pipeline/slack/payloads/payload_firebase_beta.json.template > ./pipeline/slack/payloads/payload_firebase_beta.json
          - pipe: atlassian/slack-notify:2.0.0
variables:
WEBHOOK_URL: $WEBHOOK_URL
PRETEXT: 'New Android beta release was published to Firebase! 🚀🚀🚀'
              PAYLOAD_FILE: ./pipeline/slack/payloads/payload_firebase_beta.json

payload_firebase_beta.json

{
"blocks": [
      {
"type": "section",
"text": {
"type": "mrkdwn",
"text": "$WEBSITE"
          }
      },
      {
"type": "divider"
      },
      {
"type": "section",
"text": {
"type": "mrkdwn",
"text": "Test mrkdwn text"
          }
      }
  ]
}

payload_firebase_beta.json.template 

WEBSITE="test website"

 Error:

INFO: Starting with payload provided in PAYLOAD_FILE...
INFO: Sending notification to Slack...
✖ Failed to parse PAYLOAD_FILE payload.json: invalid JSON provided.

Thank you in advance 

Mark C

Hi @Edgar Khimich

Thank you for reaching out to the community.

I've tested the same on my end.
However, using the JSON format you provided works fine on my end.
I tried providing an invalid JSON format to the Pipes script and I was able to reproduce the same error message.

For this, would it be possible for you to check the JSON format after the command envsubst?

- envsubst < ./pipeline/slack/payloads/payload_firebase_beta.json.template > ./pipeline/slack/payloads/payload_firebase_beta.json
- cat ./pipeline/slack/payloads/payload_firebase_beta.json

Let me know how it goes.

Regards,
Mark C