node.js - 如何用nodejs写一个接口，随便写一个就好

问题描述

在个人主页这里面，新手求教

问题解答

去看官网文档吧，用 express 或者 koa

router.post('/changePwd', (req, res, next) => { var oldPwd = req.body.oldPwd,newPwd = req.body.newPwd,uid = req.session.user.id; var ep = new EventProxy(); ep.fail(err => {logger.error('~update user password failed .', err);res.json({status: err.status || se.code.failed}); }); if (!oldPwd || !newPwd) {return ep.throw(se.error(se.code.paramIllegal)); } if(oldPwd == newPwd){return ep.throw(se.error(se.code.pwdSame)); } admin.findUserById(uid, ep.done(user => {if(user[0].password != encrypt.encrypt(oldPwd)){ return ep.throw(se.error(se.code.verifyFailed));}if(user[0].password == encrypt.encrypt(newPwd)){ return ep.throw(se.error(se.code.pwdSame));}admin.updatePassword(encrypt.encrypt(newPwd),uid,ep.done(count => { if(count > 0){res.json({status : se.code.success}); }else{res.json({status : se.code.failed}); }})); }));});回答3：

返回个json格式的字符串即可