Node-redでリダイレクトさせるページを作る

目的

「チラシに印刷したQRからの流入か店頭のポスターのQRからの流入か測りたいからリダイレクトページ欲しいよね。」
みたいなよくある話。

Node-redのフロー

node.json

[{"id":"e64dc550.49f46","type":"http in","z":"d995ebbc.d3d4b","name":"","url":"/qr","method":"get","upload":false,"swaggerDoc":"","x":90,"y":60,"wires":[["caf1c45e.9cfef8"]]},{"id":"f641092c.042f4","type":"http response","z":"d995ebbc.d3d4b","name":"","statusCode":"","headers":{},"x":450,"y":60,"wires":[]},{"id":"40a104b1.96aaf4","type":"http in","z":"d995ebbc.d3d4b","name":"","url":"/redirect","method":"get","upload":false,"swaggerDoc":"","x":110,"y":120,"wires":[["8a5a3300.a937d"]]},{"id":"8a5a3300.a937d","type":"template","z":"d995ebbc.d3d4b","name":"","field":"payload","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"<h1>This is the payload: {{payload}} !</h1>","output":"str","x":290,"y":120,"wires":[["fb6afad3.a8fc68"]]},{"id":"fb6afad3.a8fc68","type":"http response","z":"d995ebbc.d3d4b","name":"","statusCode":"","headers":{},"x":450,"y":120,"wires":[]},{"id":"caf1c45e.9cfef8","type":"function","z":"d995ebbc.d3d4b","name":"リダイレクト設定","func":"msg.res.redirect(\"/redirect\")\nreturn;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":270,"y":60,"wires":[["f641092c.042f4"]]}]

functionノードの中身

function.js

msg.res.redirect("/redirect")
return;

res.redirect()

functionノードでクエリーを見てDBに追加してねー。もしくは、tenplateでGA追加して計測。