에러

TypeError: Cannot destructure property 'index' of 'req.body' as it is undefined.
    at exports.postModify (/home/cloudcoke/my/playground/router/controllers/board.controller.js:21:11)
    at Layer.handle [as handle_request] (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/layer.js:95:5)
    at next (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/route.js:144:13)
    at Route.dispatch (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/route.js:114:3)
    at Layer.handle [as handle_request] (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/layer.js:95:5)
    at /home/cloudcoke/my/playground/router/node_modules/express/lib/router/index.js:284:15
    at Function.process_params (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/index.js:346:12)
    at next (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/index.js:280:10)
    at Function.handle (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/index.js:175:3)
    at router (/home/cloudcoke/my/playground/router/node_modules/express/lib/router/index.js:47:12)

원인

• req.body 객체가 undefined가 나오고 사용하려고 하면 에러가 나왔다.
• 알고보니 app.use로 사용해야 하는데 app.set으로 사용하고 있었다.
  server.js

app.set(express.urlencoded({ extended: false }));

해결

• app.set을 app.use로 변경해주면 된다.

app.use(express.urlencoded({ extended: false }));