feat: add oauth token option for fetch action

Signed-off-by: ElaineDeMattosSilvaB <elaine.de-mattos-silva-bezerra@deutschebahn.com>

packages/integration/src/gitlab/core.test.ts

@@ -17,7 +17,7 @@
 import { rest } from 'msw';
 import { setupServer } from 'msw/node';
 import { GitLabIntegrationConfig } from './config';
-import { getGitLabFileFetchUrl } from './core';
+import { getGitLabFileFetchUrl, getGitLabRequestOptions } from './core';
 
 const worker = setupServer();
 
@@ -186,4 +186,34 @@ describe('gitlab core', () => {
       });
     });
   });
+
+  describe('getGitLabRequestOptions', () => {
+    it('should return Authorization header when oauthToken is provided', () => {
+      const oauthToken = 'mock-oauth-token';
+      const result = getGitLabRequestOptions(
+        configSelfHosteWithRelativePath,
+        oauthToken,
+      );
+
+      expect(result).toEqual({
+        headers: {
+          Authorization: `Bearer ${oauthToken}`,
+        },
+      });
+    });
+
+    it('should return private-token header when oauthToken is undefined', () => {
+      const oauthToken = undefined;
+      const result = getGitLabRequestOptions(
+        configSelfHosteWithRelativePath,
+        oauthToken,
+      );
+
+      expect(result).toEqual({
+        headers: {
+          'PRIVATE-TOKEN': configSelfHosteWithRelativePath.token,
+        },
+      });
+    });
+  });
 });

packages/integration/src/gitlab/core.ts

@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
+import fetch from 'cross-fetch';
 import {
   getGitLabIntegrationRelativePath,
   GitLabIntegrationConfig,
 } from './config';
-import fetch from 'cross-fetch';
 
 /**
  * Given a URL pointing to a file on a provider, returns a URL that is suitable
@@ -51,9 +51,18 @@ export async function getGitLabFileFetchUrl(
  * @param config - The relevant provider config
  * @public
  */
-export function getGitLabRequestOptions(config: GitLabIntegrationConfig): {
-  headers: Record<string, string>;
-} {
+export function getGitLabRequestOptions(
+  config: GitLabIntegrationConfig,
+  oauthToken?: string,
+): { headers: Record<string, string> } {
+  if (oauthToken) {
+    return {
+      headers: {
+        Authorization: `Bearer ${oauthToken}`,
+      },
+    };
+  }
+
   const { token = '' } = config;
   return {
     headers: {