First read the backend style guide to get a sense for how we work to ensure that the Grafana codebase is consistent and accessible. The rest of the backend contributor documentation is more relevant to reviewers and contributors looking to make larger changes.
For anyone reviewing code for Grafana's backend, a basic understanding of content of the following files is expected:
Reviewers who review large changes should additionally make a habit out of familiarizing themselves with the content of /contribute/backend from time to time.
Refer to: