Merge branch 'master' of github.com:spotify/backstage into migrate-to-msw

* 'master' of github.com:spotify/backstage: (34 commits)
  TechDocs Backend: Replace hardcoded github api by configuration value (#3004)
  fix: accordion details design for job stage failure  (#3014)
  fix: responsive of page example in storybook (#3005)
  fix: update the ItemCard component and it's story (#3007)
  rename stories folder to Chip (#3009)
  feat: Display the plugins InfoCards on EntityPage Overwiev suitable full height (#2826)
  fix(cost-insights): More exports to help custom alerting
  chore(scaffolder): bump rjsf
  remove unused CSS (#2999)
  feat: update github pull requests package version
  fix(github-actions): fix crash when viewing ongoing workflows
  fix(cli): removePlugin forgotten await
  catalog-backend: relations db review comments and more tests
  Feat/add aws lambda plugin (#2985)
  chore(deps): bump object-path from 0.11.4 to 0.11.5 (#2983)
  add changeset
  fix CodeSnippet test case warnings
  fix CopyTextButton test case warnings
  fix the warning by wrapping in act
  fix(catalog): fix link to techdocs
  ...

plugins/techdocs-backend/src/default-branch.ts

@@ -42,9 +42,11 @@ interface IGitlabBranch {
   };
 }
 
-function getGithubApiUrl(url: string): URL {
+function getGithubApiUrl(config: Config, url: string): URL {
   const { protocol, owner, name } = parseGitUrl(url);
-  const apiBaseUrl = 'api.github.com';
+  const apiBaseUrl =
+    config.getOptionalString('integrations.github.apiBaseUrl') ||
+    'api.github.com';
   const apiRepos = 'repos';
 
   return new URL(`${protocol}://${apiBaseUrl}/${apiRepos}/${owner}/${name}`);
@@ -133,7 +135,7 @@ async function getGithubDefaultBranch(
   repositoryUrl: string,
   config: Config,
 ): Promise<string> {
-  const path = getGithubApiUrl(repositoryUrl).toString();
+  const path = getGithubApiUrl(config, repositoryUrl).toString();
   const options = getGithubRequestOptions(config);
 
   try {