feat(api): typescript

api/services/appstore.ts

@@ -0,0 +1,48 @@
+import { send, sendError, fetch, NowRequest, NowResponse } from '../util/http'
+
+interface App {
+  trackId: string
+  trackName: string
+  kind: string
+  version: string
+  price: string
+  trackViewUrl: string
+}
+
+interface AppStoreResponse {
+  results: App[]
+}
+
+export default async function handler(
+  req: NowRequest<{ query: string; country: string }>,
+  res: NowResponse
+) {
+  const { query, country } = req.query
+
+  if (!query) {
+    return sendError(res, new Error('no query given'))
+  }
+
+  const term = encodeURIComponent(query)
+  const countryCode = country || 'us'
+  const limit = 10
+
+  try {
+    const response = await fetch(
+      `https://itunes.apple.com/search?media=software&entity=software,iPadSoftware,macSoftware&country=${countryCode}&limit=${limit}&term=${term}`,
+      'GET'
+    )
+    const body: AppStoreResponse = await response.json()
+    const apps = body.results.map((app) => ({
+      id: app.trackId,
+      name: app.trackName,
+      kind: app.kind,
+      version: app.version,
+      price: app.price,
+      viewURL: app.trackViewUrl,
+    }))
+    send(res, { result: apps || [] })
+  } catch (err) {
+    sendError(res, err)
+  }
+}