fix(upload): add populate query to findOne method

packages/core/upload/server/controllers/content-api.js

@@ -26,9 +26,10 @@ module.exports = {
   async findOne(ctx) {
     const {
       params: { id },
+      query: { populate },
     } = ctx;
 
-    const file = await getService('upload').findOne(id);
+    const file = await getService('upload').findOne(id, populate);
 
     if (!file) {
       return ctx.notFound('file.notFound');

packages/core/upload/tests/content-api/upload.test.api.js

@@ -2,6 +2,7 @@
 
 const fs = require('fs');
 const path = require('path');
+const get = require('lodash/get');
 
 // Helpers.
 const { createTestBuilder } = require('../../../../../test/helpers/builder');
@@ -163,6 +164,17 @@ describe('Upload plugin', () => {
         ])
       );
     });
+    test('Get one file', async () => {
+      const getRes = await rq({ method: 'GET', url: '/upload/files/1' });
+
+      expect(getRes.statusCode).toBe(200);
+      expect(getRes.body).toEqual(
+        expect.objectContaining({
+          id: expect.anything(),
+          url: expect.any(String),
+        })
+      );
+    });
   });
 
   describe('Create an entity with a file', () => {
@@ -224,6 +236,25 @@ describe('Upload plugin', () => {
       });
       data.dogs.push(res.body);
     });
+    test('File should have related field', async () => {
+      const fileId = get(data, 'dogs[0].data.attributes.profilePicture.data.id');
+
+      expect(fileId).toBeDefined();
+
+      const getRes = await rq({
+        method: 'GET',
+        url: `/upload/files/${fileId}`,
+        qs: { populate: '*' },
+      });
+
+      expect(getRes.statusCode).toBe(200);
+      expect(getRes.body).toEqual(
+        expect.objectContaining({
+          id: fileId,
+          related: [expect.any(Object)],
+        })
+      );
+    });
   });
 
   describe('Create an entity with a component with a file', () => {