Who is this workflow for? Streamline your GitLab merge request process by automating branch merges using n8n’s powerful workflow capabilities. This setup reduces manual interventions, ensuring efficient and reliable integration of code changes..

What does this workflow do?

  • Trigger the Workflow
  • Webhook, Cron, or GitLab Event: Initiate the workflow when a new merge request is created, approved, or based on a scheduled event.
  • Fetch Merge Request Details
  • HTTP Request Node: Use n8n to call GitLab’s GET /merge_requests/:id API endpoint to retrieve relevant details of the merge request.
  • Check Merge Conditions
  • Approval Verification: Confirm that the merge request has received the required number of approvals.
  • CI/CD Pipeline Status: Ensure that all associated CI/CD pipelines have completed successfully.
  • Perform the Merge
  • HTTP Request Node: If all conditions are satisfied, send a PUT /merge_requests/:id/merge request to GitLab’s API to merge the branch automatically.
  • Handle Outcomes
  • Logging and Notifications: Record the outcome of the merge attempt and notify relevant stakeholders if necessary.

🤖 Why Use This Automation Workflow?

  • Efficiency: Automatically merge branches when predefined conditions are met, saving time and reducing manual effort.
  • Consistency: Ensure that all merge requests adhere to your project’s standards by enforcing approval and CI/CD pipeline requirements.
  • Scalability: Easily handle a large number of merge requests without overwhelming your team.

👨‍💻 Who is This Workflow For?

This workflow is ideal for developers, DevOps engineers, and automation enthusiasts seeking to enhance their GitLab operations. Whether you’re managing personal projects or part of a large development team, this automation can significantly improve your merge request handling.

🎯 Use Cases

  1. Continuous Integration: Automatically merge branches once all CI/CD pipeline checks pass, ensuring seamless integration.
  2. Approval Management: Enforce that merge requests receive the necessary approvals before merging, maintaining code quality.
  3. Scheduled Merges: Set up periodic checks to merge approved requests during off-peak hours, minimizing disruption.

TL;DR

This n8n workflow automates the GitLab merge request process by leveraging API calls to ensure that merges occur only when specific conditions are met. By implementing this automation, you enhance efficiency, maintain code quality, and reduce the manual workload associated with managing merge requests.


Note: Always secure your API tokens and avoid hard-coding them in requests to protect your repositories and data integrity.

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