feat(api): typescript

api/util/http.js

@@ -1,14 +0,0 @@
-const fetch = require('isomorphic-unfetch')
-
-exports.fetch = (url, method = 'HEAD') => {
-  return fetch(url, { method })
-}
-
-exports.send = (res, data) => {
-  res.setHeader('Cache-Control', 'maxage=0, s-maxage=43200')
-  res.json(data)
-}
-
-exports.sendError = (res, error) => {
-  res.status(400).json({ error: error.message })
-}

api/util/http.ts

@@ -0,0 +1,35 @@
+import nodeFetch from 'isomorphic-unfetch'
+
+export type HttpMethod =
+  | 'GET'
+  | 'POST'
+  | 'PUT'
+  | 'DELETE'
+  | 'HEAD'
+  | 'PATCH'
+  | 'CONNECT'
+  | 'TRACE'
+
+export interface NowRequest<T = { query: string }> {
+  query: T
+}
+
+export interface NowResponse {
+  setHeader: (label: string, body: string) => void
+  json: (obj: object) => void
+  status: (code: number) => NowResponse
+  length: number
+}
+
+export function fetch(url: string, method: HttpMethod = 'HEAD') {
+  return nodeFetch(url, { method: method })
+}
+
+export function send(res: NowResponse, data: object) {
+  res.setHeader('Cache-Control', 'maxage=0, s-maxage=43200')
+  res.json(data)
+}
+
+export function sendError(res: NowResponse, error: Error) {
+  res.status(400).json({ error: error.message })
+}

api/util/testHelpers.ts

@@ -0,0 +1,13 @@
+export async function mockProvider(provider: any, query: any) {
+  const req = {
+    query,
+  }
+  const res = {
+    status: jest.fn().mockReturnThis(),
+    send: jest.fn().mockReturnThis(),
+    json: jest.fn().mockReturnThis(),
+    setHeader: jest.fn(),
+  }
+  await provider(req, res)
+  return res.json.mock.calls[0][0]
+}