How to Create Jira Issues from Slack Messages with n8n

api.slack.com > Your Apps > Create New App

Create Slack App and Bot Token

Go to api.slack.com and create a new Slack app for your workspace. You'll need this app to receive webhook events when reactions are added to messages. Navigate to OAuth & Permissions and add the reactions:read, channels:read, and chat:write scopes to your bot token.

1. 1Click 'Create New App' and choose 'From scratch'
2. 2Name your app 'Jira Issue Creator' and select your workspace
3. 3Go to OAuth & Permissions in the left sidebar
4. 4Add reactions:read, channels:read, and chat:write to Bot Token Scopes
5. 5Click 'Install to Workspace' and authorize the app

api.slack.com > Your Apps > Event Subscriptions

Configure Slack Event Subscriptions

Enable Event Subscriptions in your Slack app to receive webhook notifications when reactions are added. You'll need to provide n8n's webhook URL here, but we'll generate that in the next step. For now, just navigate to the Event Subscriptions page and prepare to add reaction_added to your bot events.

1. 1Toggle 'Enable Events' to On
2. 2Leave Request URL empty for now (we'll add n8n's webhook URL next)
3. 3Scroll to 'Subscribe to bot events'
4. 4Click 'Add Bot User Event' and select 'reaction_added'
5. 5Save Changes

This JavaScript code goes in a Function node between the Slack message fetch and Jira creation. It intelligently maps different emoji reactions to appropriate Jira issue types and priorities while extracting user mentions from the message.

// Map emoji reactions to Jira issue properties
const reactionMapping = {
  'bug': { type: 'Bug', priority: 'Medium' },

// Map emoji reactions to Jira issue properties
const reactionMapping = {
  'bug': { type: 'Bug', priority: 'Medium' },
  'zap': { type: 'Task', priority: 'High' },
  'bulb': { type: 'Story', priority: 'Low' }
};

const reaction = $input.first().json.event.reaction;
const messageData = $node['Slack'].json;

// Extract mentioned users from message text
const mentions = messageData.text.match(/<@(\w+)>/g) || [];
const mentionedUsers = mentions.map(mention => {
  const userId = mention.replace(/[<@>]/g, '');
  return `Mentioned: <@${userId}>`;
}).join('\n');

// Build rich description with context
const description = `
*Original Message:*
${messageData.text}

*Posted by:* <@${messageData.user}>
*Channel:* <#${$input.first().json.event.item.channel}>
*Timestamp:* ${new Date(parseFloat(messageData.ts) * 1000).toISOString()}
${mentionedUsers ? '\n*Mentions:*\n' + mentionedUsers : ''}

*Created via Slack reaction automation*
`;

// Get issue properties from reaction type
const issueProps = reactionMapping[reaction] || { type: 'Task', priority: 'Medium' };

return {
  json: {
    summary: `Issue from Slack: ${messageData.text.substring(0, 60)}${messageData.text.length > 60 ? '...' : ''}`,
    description: description.trim(),
    issueType: issueProps.type,
    priority: issueProps.priority,
    channel: $input.first().json.event.item.channel,
    originalUser: messageData.user,
    messageTimestamp: messageData.ts
  }
};

n8n > New Workflow > Add Node

Create n8n Workflow with Slack Webhook

Open n8n and create a new workflow. Add a Slack Webhook node as your trigger - this will generate the webhook URL you need to provide back to Slack. The webhook will receive data whenever someone adds a reaction to a Slack message.

1. 1Click the '+' button to add a new node
2. 2Search for 'Webhook' and select it
3. 3Set HTTP Method to 'POST'
4. 4Set Path to '/slack-reactions'
5. 5Click 'Copy Webhook URL' to get the full URL

api.slack.com > Your Apps > Event Subscriptions

Add Webhook URL to Slack

Return to your Slack app's Event Subscriptions page and paste the n8n webhook URL. Slack will send a challenge request to verify the URL works. n8n's webhook node automatically handles this verification, so you should see a green verified checkmark.

1. 1Paste your n8n webhook URL into the 'Request URL' field
2. 2Wait for Slack to verify the URL (takes 5-10 seconds)
3. 3Click 'Save Changes' once verification passes
4. 4Go to 'Install App' and reinstall to workspace

n8n > Add Node > IF

Add Reaction Filter Node

Add an IF node after the webhook to filter for specific emoji reactions. You only want to create Jira issues for certain reactions like 🐛 for bugs or ⚡ for urgent issues. Configure the IF node to check if the reaction emoji matches your chosen trigger emoji.

1. 1Add an IF node after the webhook
2. 2Set Condition to 'String'
3. 3Set Value 1 to '{{ $json.event.reaction }}'
4. 4Set Operation to 'Equal'
5. 5Set Value 2 to 'bug' (for 🐛 emoji)

n8n > Add Node > Slack

Fetch Slack Message Details

Add a Slack node to retrieve the full message content that the reaction was added to. The webhook only provides the message timestamp and channel, so you need to fetch the actual message text, author, and thread context to include in your Jira issue.

1. 1Add a Slack node connected to the 'true' path of the IF node
2. 2Set Resource to 'Message'
3. 3Set Operation to 'Get'
4. 4Set Channel to '{{ $json.event.item.channel }}'
5. 5Set Timestamp to '{{ $json.event.item.ts }}'

n8n > Add Node > Jira Software

Configure Jira Authentication

Add a Jira Software node and set up authentication to your Jira instance. You'll need to create credentials using either basic auth (email + API token) or OAuth2 depending on your Jira setup. For Jira Cloud, use email and an API token from your Atlassian account settings.

1. 1Add a Jira Software node after the Slack message node
2. 2Click 'Create New' next to Credentials
3. 3Choose 'Jira Software API' credential type
4. 4Enter your Jira domain (like 'yourcompany.atlassian.net')
5. 5Enter your email and API token from Atlassian account settings

Jira Software Node > Parameters

Configure Jira Issue Creation

Set the Jira node to create a new issue using the Slack message content. Map the Slack message text to the Jira description field, and set appropriate values for project key, issue type, and summary. Use the Slack username and channel name to provide context about where the issue originated.

1. 1Set Resource to 'Issue'
2. 2Set Operation to 'Create'
3. 3Select your target Jira project from the dropdown
4. 4Set Issue Type to 'Bug' or 'Task'
5. 5Set Summary to 'Issue from #{{ $json.event.item.channel }}: {{ $node["Slack"].json.text | truncate(50) }}'
6. 6Set Description to the full Slack message text and user info

n8n > Add Node > Slack

Add Slack Confirmation Response

Add another Slack node to post a confirmation message in the thread where the reaction was added. This lets the team know that a Jira issue was successfully created and provides the issue key for reference. Connect this to the Jira node output so it only runs after successful issue creation.

1. 1Add another Slack node after the Jira node
2. 2Set Resource to 'Message'
3. 3Set Operation to 'Post'
4. 4Set Channel to '{{ $json.event.item.channel }}'
5. 5Set Text to 'Created Jira issue: {{ $node["Jira Software"].json.key }}'
6. 6Set Thread TS to '{{ $json.event.item.ts }}' to reply in thread

n8n > Activate Workflow

Test the Workflow

Activate your workflow and test it by posting a test message in Slack, then adding your trigger emoji reaction. Check that the webhook fires, the message details are fetched, a Jira issue gets created, and a confirmation appears in Slack. Review the execution log in n8n to troubleshoot any failures.

1. 1Click the 'Active' toggle in the top right of n8n
2. 2Go to your Slack workspace and post a test message
3. 3Add a 🐛 reaction to your test message
4. 4Check the 'Executions' tab in n8n for the triggered workflow
5. 5Verify the Jira issue was created and Slack got the confirmation