Post a message to Microsoft Teams with bash script.

teams-chat-post-for-workflows.sh

#!/bin/bash
# =============================================================================
#  Author: Chu-Siang Lai / chusiang (at) drx.tw
#  Filename: teams-chat-post-for-workflows.sh
#  Modified: 2024-07-22 11:44 (UTC+08:00)
#  Description: Post a message to Microsoft Teams via "Post to a chat when a webhook request is received" workflows.
#  Reference:
#
#   - https://gist.github.com/chusiang/895f6406fbf9285c58ad0a3ace13d025
#   - https://devblogs.microsoft.com/microsoft365dev/retirement-of-office-365-connectors-within-microsoft-teams/
#   - https://adaptivecards.io/explorer/
#   - https://adaptivecards.io/designer/
#
# =============================================================================

# Help.
if [[ "$1" == "-h" || "$1" == "--help" ]]; then
  echo 'Usage: teams-chat-post.sh "<webhook_url>" "<title>" "<color>" "<message>"'
  exit 0
fi

# Webhook or Token.
WEBHOOK_URL=$1
if [[ "${WEBHOOK_URL}" == "" ]]; then
  echo "No webhook_url specified."
  exit 1
fi
shift

# Title .
TITLE=$1
if [[ "${TITLE}" == "" ]]; then
  echo "No title specified."
  exit 1
fi
shift

# Color.
COLOR=$1
if [[ "${COLOR}" == "" ]]; then
  echo "No color specified."
  exit 1
fi
shift

# Text.
TEXT=$*
if [[ "${TEXT}" == "" ]]; then
  echo "No text specified."
  exit 1
fi

# Escape char: `'`, `"`, `\` .
MESSAGE=$(echo ${TEXT} | sed "s/'/\'/g" | sed 's/"/\"/g; s/\\/\\\\/g')

# Adaptive Cards of TextBlock - https://adaptivecards.io/explorer/TextBlock.html
JSON="{
  \"type\": \"message\",
  \"attachments\": [
    {
      \"contentType\": \"application/vnd.microsoft.card.adaptive\",
      \"contentUrl\": null,
      \"content\": {
        \"$schema\": \"http://adaptivecards.io/schemas/adaptive-card.json\",
        \"type\": \"AdaptiveCard\",
        \"version\": \"1.2\",
        \"body\": [
          {
            \"type\":   \"TextBlock\",
            \"text\":   \"${TITLE}\",
            \"color\":  \"${COLOR}\",
            \"weight\": \"bolder\",
            \"size\":   \"large\",
            \"wrap\":   true
          },
          {
            \"type\":   \"TextBlock\",
            \"text\":   \"${MESSAGE}\",
            \"color\":  \"${COLOR}\",
            \"size\":   \"small\",
            \"wrap\":   true
          }
        ]
      }
    }
  ]
}"

# Post to Microsoft Teams via curl.
curl \
  --header "Content-Type: application/json" \
  --request POST \
  --data "${JSON}" \
  "${WEBHOOK_URL}"

teams-chat-post.sh

#!/bin/bash
# =============================================================================
#  Author: Chu-Siang Lai / chusiang (at) drx.tw
#  Filename: teams-chat-post.sh
#  Modified: 2024-07-12 18:49 (UTC+08:00)
#  Description: Post a message to Microsoft Teams via connectors, not support
#               Power Automate workflows.
#  Reference:
#
#   - https://gist.github.com/chusiang/895f6406fbf9285c58ad0a3ace13d025
#   - https://devblogs.microsoft.com/microsoft365dev/retirement-of-office-365-connectors-within-microsoft-teams/
#   - Fixed for workflows edition: https://gist.github.com/chusiang/895f6406fbf9285c58ad0a3ace13d025?permalink_comment_id=5119162#gistcomment-5119162
#
# =============================================================================

# Help.
if [[ "$1" == "-h" || "$1" == "--help" ]]; then
  echo 'Usage: teams-chat-post.sh "<webhook_url>" "<title>" "<color>" "<message>"'
  exit 0
fi

# Webhook or Token.
WEBHOOK_URL=$1
if [[ "${WEBHOOK_URL}" == "" ]]; then
  echo "No webhook_url specified."
  exit 1
fi
shift

# Title .
TITLE=$1
if [[ "${TITLE}" == "" ]]; then
  echo "No title specified."
  exit 1
fi
shift

# Color.
COLOR=$1
if [[ "${COLOR}" == "" ]]; then
  echo "No status specified."
  exit 1
fi
shift

# Text.
TEXT=$*
if [[ "${TEXT}" == "" ]]; then
  echo "No text specified."
  exit 1
fi

# Convert formating.
MESSAGE=$(echo ${TEXT} | sed 's/"/\"/g' | sed "s/'/\'/g")
JSON="{
  \"title\": \"${TITLE}\",
  \"themeColor\": \"${COLOR}\",
  \"text\": \"${MESSAGE}\"
}"

# Post to Microsoft Teams.
curl -H "Content-Type: application/json" -d "${JSON}" "${WEBHOOK_URL}"

@yondkoo Thanks for spotting it out. Fixed!

Also fixed:

• -logoo, +logo

Hi,

I can use the script (again) but I am unable to show the JSON content directly as a card. I receive runtime errors.

I have this Workflow.

and I send the data like this (the webhook is written inside the script already)

./teams-workflow.sh -t "TITLE" -x "MESSAGE"

The left branch works - I get a static notification. However, I do not know how to setup properly the "post card" step.

The data are visible in the Workflow, I can see my "TITLE" and "MESSAGE" texts in the received Adaptive card.

Do you know please how to setup this minimal example? Or what kind of Workflow do you use to show the sh-script-generated JSON payload? Thanks.