gistfile1.txt

#!/bin/bash

# Check if correct number of arguments is provided
if [ "$#" -ne 2 ]; then
    echo "Usage: $0 <USER_ID> <MESSAGE_TEXT>"
    exit 1
fi

# Assign input arguments to variables
TOPIC="projects/yopa-433507/topics/backend_messages"
USER_ID=$1
MESSAGE_TEXT=$2

# Define a temporary file to hold the JSON payload
TEMP_FILE=$(mktemp)

# Construct the JSON payload
cat <<EOF > "$TEMP_FILE"
{
"userId": "$USER_ID",
  "content": "$MESSAGE_TEXT"
}
EOF

# Publish the message to the Pub/Sub topic with attributes
gcloud pubsub topics publish "$TOPIC" --message="$(cat "$TEMP_FILE")" --attribute="userId=$USER_ID,type=msg,timestamp=$(date +%s)"

# Clean up the temporary file
rm "$TEMP_FILE"

# Inform the user of success
echo "Message sent to topic $TOPIC"

exit 0