Merge pull request #36 from yasuharu519/develop

[Prod] Release 2021-04-03 16:44:48

examples/express-authentication/index.js

@@ -0,0 +1,43 @@
+let express = require('express');
+let WithingsClient = require('withings-ts').default
+let app = express();
+
+// First you need register application on https://account.withings.com/partner/add_oauth2
+// After registration, you can get client id and client secret, please put those here.
+// While registration, you can set callback url for authentication process, please put same one here.
+let client = new WithingsClient(
+    "<client id>",
+    "<client secret>",
+    "<callback url>"
+)
+
+// 1. First you need redirect user to get authentication code
+app.get('/', function (req, res) {
+  console.log(client)
+  res.redirect(client.generateGetAuthenticationCodeUrl("<state>", ["<scopes>"]))
+});
+
+// 2. On callback url, you can get authentication code by query parameter.
+//    With that authentication code, you can get access token and refresh token.
+//    With using access token, you can call api whatever you want.
+app.get('/callback', function (req, res) {
+  console.log(req.query);
+
+  // authentication code can be got through query parameter
+  let code = req.query.code;
+
+  // get access token by using authentication code
+  client.getAccessToken(code).then(function (accessTokenRes) {
+    // with access token, you can call api whatever you want limited by scope.
+    // access token only valid 3 hours by default.
+    // If you want extend expiration, you need to refresh access token by calling `getRefreshToken` and get new access token
+    res.json(accessTokenRes);
+  });
+});
+
+// start app server
+var server = app.listen(3000, function () {
+  var host = server.address().address;
+  var port = server.address().port;
+  console.log('Example app listening at http://%s:%s', host, port);
+});