Created
November 26, 2018 14:57
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kakao
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| const axios = require('axios'); | |
| const { send, sendError } = require('micro'); | |
| const { URL, URLSearchParams } = require('url'); | |
| const KAKAO_APP_KEY = 'YOUR_KAKAO_APP_KEY'; | |
| const KAKAO_REDIRECT_URL = 'http://www.lvh.me:3000/authorize/callback'; | |
| const KAKAO_AUTHORIZE_ENDPOINT = (() => { | |
| const url = new URL('https://kauth.kakao.com/oauth/authorize'); | |
| url.searchParams.append('client_id', KAKAO_APP_KEY); | |
| url.searchParams.append('redirect_uri', KAKAO_REDIRECT_URL); | |
| url.searchParams.append('response_type', 'code'); | |
| return url.toString(); | |
| })(); | |
| module.exports = exports = async (req, res) => { | |
| const pathname = parsePathname(req.url); | |
| if (pathname === '/authorize') { | |
| return redirect(res, KAKAO_AUTHORIZE_ENDPOINT); | |
| } | |
| if (pathname === '/authorize/callback') { | |
| const query = parseQuery(req.url); | |
| const code = query.get('code'); | |
| if (!code) { | |
| return redirect(res, KAKAO_AUTHORIZE_ENDPOINT); | |
| } | |
| try { | |
| const params = new URLSearchParams(new Map([ | |
| ['grant_type', 'authorization_code'], | |
| ['client_id', KAKAO_APP_KEY], | |
| ['redirect_url', KAKAO_REDIRECT_URL], | |
| ['code', code], | |
| ])); | |
| const res = await axios({ | |
| method: 'POST', | |
| url: 'https://kauth.kakao.com/oauth/token', | |
| headers: { | |
| 'Content-Type': 'application/x-www-form-urlencoded', | |
| }, | |
| data: params.toString(), | |
| }); | |
| return res.data; | |
| } catch (e) { | |
| if (e.response) { | |
| console.error('Request failed with %d', e.response.status, e.response.data); | |
| } | |
| return sendError(req, res, e); | |
| } | |
| } | |
| return redirect(res, '/authorize'); | |
| } | |
| function parsePathname(url) { | |
| const index = url.indexOf('?'); | |
| return index === -1 ? url : url.slice(0, index); | |
| } | |
| function parseQuery(url) { | |
| const index = url.indexOf('?'); | |
| if (index === -1) { | |
| return new URLSearchParams(); | |
| } | |
| return new URLSearchParams(url.slice(index + 1)); | |
| } | |
| function redirect(res, location, status = 302) { | |
| res.setHeader('Location', location); | |
| return send(res, status); | |
| } |
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| { | |
| "name": "kakao-oauth", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "index.js", | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1" | |
| }, | |
| "author": "", | |
| "license": "ISC", | |
| "dependencies": { | |
| "axios": "^0.18.0", | |
| "micro": "^9.3.3" | |
| } | |
| } |
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