feat: using some of the latest work from @freben to align with the backend plugin strategy

plugins/scaffolder/.eslintrc.js

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+module.exports = {
+  rules: {
+    'no-console': 0, // Permitted in console programs
+    'new-cap': ['error', { capIsNew: false }], // Because Express constructs things e.g. like 'const r = express.Router()'
+  },
+};

plugins/scaffolder/src/backend/index.ts

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+/*
+ * Copyright 2020 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import express from 'express';
+
+export const router = express.Router();
+
+router.get('/v1/templates', async (_, res) => {
+  res
+    .status(200)
+    .send([
+      { id: 'component1' },
+      { id: 'component2' },
+      { id: 'component3' },
+      { id: 'component4' },
+    ]);
+});
+
+router.get('/v1/template/:templateId', async (_, res) => {
+  res
+    .status(200)
+    .send([
+      { id: 'component1' },
+      { id: 'component2' },
+      { id: 'component3' },
+      { id: 'component4' },
+    ]);
+});
+
+router.post('/v1/jobs', async (_, res) => {
+  res
+    .status(200)
+    .send([
+      { id: 'component1' },
+      { id: 'component2' },
+      { id: 'component3' },
+      { id: 'component4' },
+    ]);
+});
+
+router.get('/v1/jobs', async (_, res) => {
+  res
+    .status(200)
+    .send([
+      { id: 'component1' },
+      { id: 'component2' },
+      { id: 'component3' },
+      { id: 'component4' },
+    ]);
+});
+
+router.get('/v1/job/:jobId', async (_, res) => {
+  res
+    .status(200)
+    .send([
+      { id: 'component1' },
+      { id: 'component2' },
+      { id: 'component3' },
+      { id: 'component4' },
+    ]);
+});

plugins/scaffolder/src/server.ts

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+/*
+ * Copyright 2020 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export { router } from './backend';