Add [snapcraft] version badge

services/snapstore/snapstore-version.service.js

@@ -0,0 +1,54 @@
+import Joi from 'joi'
+import { BaseJsonService, pathParams } from '../index.js'
+
+const versionSchema = Joi.object({
+  'channel-map': Joi.array().items(
+    Joi.object({
+      version: Joi.string().required(),
+    }),
+  ),
+}).required()
+
+export default class SnapstoreVersion extends BaseJsonService {
+  static category = 'version'
+
+  static route = {
+    base: 'snapstore/v',
+    pattern: ':package',
+  }
+
+  static defaultBadgeData = { label: 'snapcraft', namedLogo: 'snapcraft' }
+
+  static openApi = {
+    '/snapstore/v/{package}': {
+      get: {
+        summary: 'Snapcraft version',
+        parameters: pathParams({
+          name: 'package',
+          example: 'vim-editor',
+        }),
+      },
+    },
+  }
+
+  static render({ version }) {
+    return { message: version, color: 'blue', namedLogo: 'snapcraft' }
+  }
+
+  async handle({ package: packageName }) {
+    const parsedData = await this._requestJson({
+      schema: versionSchema,
+      options: {
+        headers: { 'Snap-Device-Series': 16 },
+      },
+      url: `https://api.snapcraft.io/v2/snaps/info/${packageName}`,
+      httpErrors: {
+        404: 'package not found',
+      },
+    })
+
+    const version = parsedData['channel-map'][0].version
+
+    return this.constructor.render({ version })
+  }
+}

services/snapstore/snapstore-version.tester.js

@@ -0,0 +1,15 @@
+import { isSemver } from '../test-validators.js'
+import { createServiceTester } from '../tester.js'
+export const t = await createServiceTester()
+
+t.create('Snapcraft Version for redis').get('/redis.json').expectBadge({
+  label: 'snapcraft',
+  message: isSemver,
+})
+
+t.create('Snapcraft Version for redis (invalid package)')
+  .get('/this_package_doesnt_exist.json')
+  .expectBadge({
+    label: 'snapcraft',
+    message: 'package not found',
+  })