3 - A First Pipeline

1. In MONDAT on the pipelines page, press Add Pipeline and add a pipeline named myPipeline.

2. Add a description to your pipeline.

3. Click on the definition tab and delete the existing default step, then drag the following steps onto the pipeline definition.

   • example / saySomething (Open the item and add your own message)
   • util / delay (sleep for 15 seconds)
   • example / saySomething (Set the message to continuing now...)
   • Fixed reply (Return any message you like)

Important

Don't forget to press Save! Sorry, the current version gives no indication that the pipeline save worked.

TIP

The search filter can save a lot of time

4. Restart server by saving app.js using <control>-S.

Test your Pipeline

1. Go to the Testing page and add a test case for your new pipeline.

2. Press the Save button.

3. Click on Run test for your myPipeline test.

You will see an error message.

{
  "code": "InvalidArgument",
  "message": "Missing req.tenant (normally set by middleware)"
}

This null transaction is a test transaction that bypasses user authentication, but your pipeline does not. In our code so far we have not done anything to tell DATP which user is starting a pipeline, so it refuses to start our pipeline.

Pipeline versions

Exporting and inporting pipelines

Coming up next...

In the next section we address how users are authenticated, and the tenantId is passed through to DATP.

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