Support IsDryRun within http-request backend action

.changeset/neat-beers-call.md

@@ -0,0 +1,5 @@
+---
+'@roadiehq/scaffolder-backend-module-http-request': patch
+---
+
+Allow dry-run for HTTP methods that don't modify resources

plugins/scaffolder-actions/scaffolder-backend-module-http-request/src/actions/run/backstageRequest.test.ts

@@ -43,6 +43,7 @@ describe('http:backstage:request', () => {
     logStream: new PassThrough(),
     output: jest.fn(),
     createTemporaryDirectory: jest.fn(),
+    isDryRun: false,
   };
 
   describe('when the action runs correctly', () => {
@@ -389,5 +390,65 @@ describe('http:backstage:request', () => {
         );
       });
     });
+
+    describe('with dry run enabled', () => {
+      beforeEach(() => {
+        mockContext.isDryRun = true;
+      });
+
+      afterEach(() => {
+        mockContext.isDryRun = false;
+      });
+
+      it('should call http when a safe method is passed', async () => {
+        (http as jest.Mock).mockReturnValue({
+          code: 200,
+          headers: {},
+          body: {},
+        });
+        const expectedLog =
+          'Creating GET request with http:backstage:request scaffolder action';
+        await action.handler({
+          ...mockContext,
+          input: {
+            path: '/api/proxy/foo',
+            method: 'GET',
+            logRequestPath: false,
+          },
+        });
+        expect(loggerSpy).toBeCalledTimes(1);
+        expect(loggerSpy.mock.calls[0]).toContain(expectedLog);
+        expect(http).toBeCalledWith(
+          {
+            url: 'http://backstage.tests/api/proxy/foo',
+            method: 'GET',
+            headers: {},
+          },
+          logger,
+          false,
+        );
+      });
+
+      it('should skip when an unsafe method is passed', async () => {
+        (http as jest.Mock).mockReturnValue({
+          code: 200,
+          headers: {},
+          body: {},
+        });
+        const expectedLog =
+          "Dry run mode. Skipping non dry-run safe method 'POST' request to http://backstage.tests/api/proxy/foo";
+        await action.handler({
+          ...mockContext,
+          input: {
+            path: '/api/proxy/foo',
+            method: 'POST',
+            logRequestPath: false,
+          },
+        });
+        expect(loggerSpy).toBeCalledTimes(2);
+        expect(loggerSpy.mock.calls[1]).toContain(expectedLog);
+        expect(http).not.toHaveBeenCalled();
+      });
+    });
   });
 });

plugins/scaffolder-actions/scaffolder-backend-module-http-request/src/actions/run/backstageRequest.ts

@@ -39,6 +39,7 @@ export function createHttpBackstageAction(options: {
     id: 'http:backstage:request',
     description:
       'Sends a HTTP request to the Backstage API. It uses the token of the user who triggers the task to authenticate requests.',
+    supportsDryRun: true,
     schema: {
       input: {
         type: 'object',
@@ -167,6 +168,14 @@ export function createHttpBackstageAction(options: {
         httpOptions.headers.authorization = `Bearer ${token}`;
       }
 
+      const dryRunSafeMethods = new Set(['GET', 'HEAD', 'OPTIONS']);
+      if (ctx.isDryRun === true && !dryRunSafeMethods.has(method)) {
+        ctx.logger.info(
+          `Dry run mode. Skipping non dry-run safe method '${method}' request to ${httpOptions.url}`,
+        );
+        return;
+      }
+
       const { code, headers, body } = await http(
         httpOptions,
         ctx.logger,