Build and publish a Node.js package

1. In your Azure DevOps project, select Pipelines > Create Pipeline, then select GitHub as the location of your source code.
2. On the Select a repository screen, select your forked sample repository.
3. On the Configure your pipeline screen, select Starter pipeline. Azure Pipelines generates a YAML file named azure-pipelines.yml for your pipeline.
4. Select the dropdown caret next to Save and run, select Save, then select Save again. The file is saved to your forked GitHub repository.
5. On the next screen, select Edit.

Build the package and publish an artifact

Edit the azure-pipelines.yml file as follows.

1. Replace the file contents with the following code.

   trigger:
     - main
   
   pool:
     vmImage: 'ubuntu-latest'
   
   variables:
     nodeVersion: '18.x'
   
   steps:
     # Install Node.js
     - task: UseNode@1
       inputs:
         version: $(nodeVersion)
       displayName: 'Install Node.js'
   
     # Install dependencies
     - script: |
         npm install
       displayName: 'Install dependencies'
   
     # Build the project
     - script: |
         npm run build
       displayName: 'Build project'
   
     # Run tests
     - script: |
         npm test
       displayName: 'Run tests'
   
     # Copy project files to artifact staging directory
     - task: CopyFiles@2
       inputs:
         sourceFolder: '$(Build.SourcesDirectory)'
         contents: |
           src/**
           public/**
         targetFolder: '$(Build.ArtifactStagingDirectory)'
       displayName: 'Copy project files'
   
     # Publish pipeline artifact
     - task: PublishPipelineArtifact@1
       inputs:
         artifactName: 'nodejs-app'
         targetPath: '$(Build.ArtifactStagingDirectory)'
       displayName: 'Publish pipeline artifact'
   

In the updated pipeline, you'll:

• Install Node.js: The UseNode@1 task installs the specified Node.js version (18.x).
• Install dependencies: The npm install command installs the required dependencies for the Node.js project.
• Build the project: The npm run build command builds the Node.js project.
• Run Tests: The npm test command runs the project's test suite.
• Copy files: The CopyFiles@2 task copies the necessary project files (for example, src/** and public/**) to the artifact staging directory.
• Publish pipeline artifact: The PublishPipelineArtifact@1 task publishes the files from the artifact staging directory as a pipeline artifact named nodejs-app.

Run your pipeline

Select Validate and save, then Save, Run, and Run again.

After your pipeline runs, verify that the job ran successfully and that you see a published artifact.

1. Select GitHub as the source for your code.

2. Under Repository, select your forked repository and Continue.

3. Select Empty pipeline, and select Apply.

4. Under Agent specification in the right pane, select ubuntu-latest.

5. In the left pane, add the following tasks to the pipeline in order. For each task, select the + in Agent job 1, select the task at right and select Add, and configure the task if necessary.

   1. npm

   2. npm

      • Display name: npm test
      • Command: custom
      • Command and arguments: test

   3. Publish Test Results

   4. Archive files

      • Root folder or file to archive: $(System.DefaultWorkingDirectory)
      • Prepend root folder name to archive paths: Uncheck

   5. Publish build artifacts

6. Select Save & queue, and then select Save and run.