add python package total downloads from [pepy] badge (#9564)

services/pepy/pepy-downloads.service.js

@@ -0,0 +1,53 @@
+import Joi from 'joi'
+import { nonNegativeInteger } from '../validators.js'
+import { BaseJsonService, pathParams } from '../index.js'
+import { renderDownloadsBadge } from '../downloads.js'
+
+const schema = Joi.object({
+  total_downloads: nonNegativeInteger,
+}).required()
+
+const description = `
+Python package total downloads from [Pepy](https://www.pepy.tech/).
+
+Download stats from pepy count package downloads from PyPI and known mirrors.`
+
+export default class PepyDownloads extends BaseJsonService {
+  static category = 'downloads'
+
+  static route = {
+    base: 'pepy',
+    pattern: 'dt/:packageName',
+  }
+
+  static openApi = {
+    '/pepy/dt/{packageName}': {
+      get: {
+        summary: 'Pepy Total Downlods',
+        description,
+        parameters: pathParams({
+          name: 'packageName',
+          example: 'django',
+        }),
+      },
+    },
+  }
+
+  static _cacheLength = 21600
+
+  static defaultBadgeData = { label: 'downloads' }
+
+  async fetch({ packageName }) {
+    return this._requestJson({
+      url: `https://api.pepy.tech/api/v2/projects/${packageName}`,
+      schema,
+    })
+  }
+
+  async handle({ packageName }) {
+    const data = await this.fetch({ packageName })
+    return renderDownloadsBadge({
+      downloads: data.total_downloads,
+    })
+  }
+}

services/pepy/pepy-downloads.tester.js

@@ -0,0 +1,11 @@
+import { createServiceTester } from '../tester.js'
+import { isMetric } from '../test-validators.js'
+export const t = await createServiceTester()
+
+t.create('downloads (valid)')
+  .get('/dt/django.json')
+  .expectBadge({ label: 'downloads', message: isMetric })
+
+t.create('downloads (not found)')
+  .get('/dt/not-a-package.json')
+  .expectBadge({ label: 'downloads', message: 'not found' })