fix: add in api name and version to grab apis

Author: sofisl

src/generator/download.ts

@@ -83,7 +83,7 @@ export async function downloadDiscoveryDocs(
         options.downloadPath,
         api.id.replace(':', '-') + '.json'
       );
-      const url = api.discoveryRestUrl;
+      const url = `${options.discoveryUrl}/${api.name}.${api.version}.json`;
       const changeSet: ChangeSet = {api, changes: []};
       try {
         const res = await request<{}>({url});

test/fixtures/index.json

@@ -2,7 +2,9 @@
   "items": [
     {
       "id": "fake:v1",
-      "discoveryRestUrl": "http://localhost:3030/path"
+      "discoveryRestUrl": "http://localhost:3030/path",
+      "name": "fake",
+      "version": "v1"
     }
   ]
 }

test/test.download.ts

@@ -87,7 +87,11 @@ describe(__filename, () => {
         .reply(200, JSON.stringify(fs.readFileSync(fakeIndexPath, 'utf8')), {
           'Content-Type': 'application/json',
         }),
-      nock('http://localhost:3030').get('/path').reply(200),
+      nock(
+        'https://raw.githubusercontent.com/googleapis/discovery-artifact-manager/master/discoveries'
+      )
+        .get('/fake.v1.json')
+        .reply(200),
     ];
     const mkdirpStub = sandbox.stub(dn.gfs, 'mkdir').resolves();
     const writeFileStub = sandbox.stub(dn.gfs, 'writeFile');
@@ -109,9 +113,13 @@ describe(__filename, () => {
         .reply(200, JSON.stringify(fs.readFileSync(fakeIndexPath, 'utf8')), {
           'Content-Type': 'application/json',
         }),
-      nock('http://localhost:3030').get('/path').reply(200, {
-        revision: '1234',
-      }),
+      nock(
+        'https://raw.githubusercontent.com/googleapis/discovery-artifact-manager/master/discoveries'
+      )
+        .get('/fake.v1.json')
+        .reply(200, {
+          revision: '1234',
+        }),
     ];
     const writeFileStub = sandbox.stub(dn.gfs, 'writeFile');
     const readFileStub = sandbox.stub(dn.gfs, 'readFile').callsFake(() => {