How to Create Basecamp Tasks from Slack Messages with Pipedream

Pipedream > Workflows > Create Workflow

Create new workflow

Go to pipedream.com and click Create Workflow. You'll see the workflow builder with a trigger step already added. Click on the trigger step to configure it. The trigger panel opens on the right side.

1. 1Click 'Create Workflow' from the dashboard
2. 2Click on the default trigger step
3. 3Select 'Slack' from the app list
4. 4Choose 'Reaction Added' as the trigger event

Trigger Configuration > Connect Account

Connect Slack account

Click Connect Account in the trigger configuration. A popup opens asking for Slack permissions. You'll need to authorize Pipedream to read messages and reactions from your workspace. Choose the workspace where you want to monitor reactions.

1. 1Click 'Connect Account' button
2. 2Select your Slack workspace from the dropdown
3. 3Click 'Allow' to grant permissions
4. 4Verify the green 'Connected' status appears

Trigger Configuration > Event Configuration

Configure reaction filter

Set up the trigger to only fire on specific reactions. In the Channel field, select the channel you want to monitor. Leave it blank to monitor all channels. In the Reaction field, enter the emoji you want to trigger on - use the emoji name like 'white_check_mark' for ✅.

1. 1Click the Channel dropdown and select your target channel
2. 2In the Reaction field, type 'white_check_mark'
3. 3Click 'Save' to apply the configuration
4. 4Click 'Test trigger' to verify setup

Workflow Builder > + Add Step > Basecamp

Add Basecamp connection step

Click the + button below your trigger to add a new step. Search for Basecamp in the app directory and select it. Choose the 'Create To-do' action since Basecamp calls tasks 'to-dos' in their API. This step will create the actual task.

1. 1Click the + button below the trigger
2. 2Type 'Basecamp' in the search box
3. 3Select 'Basecamp' from the results
4. 4Choose 'Create To-do' action

Basecamp Step > Connect Account

Connect Basecamp account

Click Connect Account in the Basecamp step. You'll be redirected to Basecamp to authorize access. Sign in with your Basecamp credentials and grant Pipedream permission to create and modify to-dos in your account.

1. 1Click 'Connect Account' in the Basecamp step
2. 2Sign in to your Basecamp account when prompted
3. 3Click 'Yes, I'll allow access' on the authorization page
4. 4Return to Pipedream to see the connected account

Basecamp Step > Project Configuration

Select project and to-do list

Choose which Basecamp project and to-do list will receive the new tasks. The Project dropdown loads your available projects. After selecting a project, the To-do List dropdown populates with lists from that project. Pick the list where Slack-generated tasks should appear.

1. 1Click the Project dropdown and select your target project
2. 2Wait for the To-do List dropdown to populate
3. 3Select the appropriate to-do list
4. 4Verify both selections are saved

Basecamp Step > To-do Configuration

Map message content to task

Configure how the Slack message becomes a Basecamp task. Click in the Content field and select the message text from the Slack trigger data. For the task title, you can use just the message text or add a prefix like 'From Slack:' to identify the source.

1. 1Click in the Content field
2. 2Select 'message.text' from the Slack data dropdown
3. 3Add a prefix like 'From Slack: ' before the dynamic content
4. 4Set Due Date if needed using a date picker or formula

Workflow Builder > + Add Step > Code

Add duplicate prevention

Add a code step before Basecamp to prevent duplicate tasks. Click + to add a step, then select Code (Node.js). This step will check if a task already exists for this Slack message by storing processed message IDs in Pipedream's built-in data store.

1. 1Click + between the trigger and Basecamp step
2. 2Select 'Code (Node.js)' from the options
3. 3Name the step 'Duplicate Check'
4. 4Paste the duplicate prevention code

Workflow Builder > Deploy

Test the complete workflow

Test your workflow end-to-end by adding the specified reaction to a message in your Slack channel. Go to the Deploy tab and click Deploy to make it live. Then test with a real Slack message to verify the task appears in Basecamp correctly.

1. 1Click the 'Deploy' button in the top right
2. 2Go to your Slack channel and add ✅ to any message
3. 3Return to Pipedream and check the workflow execution log
4. 4Verify the task appears in your Basecamp project

Add this Node.js code step before the Basecamp action to prevent duplicate tasks when users remove and re-add reactions to the same message.

export default defineComponent({
  async run({ steps, $ }) {
    const messageKey = `slack_msg_${steps.trigger.event.item.ts}_${steps.trigger.event.item.channel}`;

export default defineComponent({
  async run({ steps, $ }) {
    const messageKey = `slack_msg_${steps.trigger.event.item.ts}_${steps.trigger.event.item.channel}`;
    
    // Check if we've already processed this message
    const existing = await $.service.db.get(messageKey);
    if (existing) {
      $.export('skip_reason', 'Task already created for this message');
      return $.flow.exit('Duplicate reaction - task already exists');
    }
    
    // Store this message as processed
    await $.service.db.set(messageKey, {
      processed_at: new Date().toISOString(),
      user: steps.trigger.event.user,
      channel: steps.trigger.event.item.channel
    });
    
    // Clean up old entries (older than 30 days)
    const thirtyDaysAgo = Date.now() - (30 * 24 * 60 * 60 * 1000);
    const allKeys = await $.service.db.keys();
    for (const key of allKeys) {
      if (key.startsWith('slack_msg_')) {
        const data = await $.service.db.get(key);
        if (new Date(data.processed_at).getTime() < thirtyDaysAgo) {
          await $.service.db.delete(key);
        }
      }
    }
    
    return { proceed: true, message_id: messageKey };
  }
});