如何用nodejs写一个接口，随便写一个就好

Question

在个人主页这里面，新手求教

Answer 1

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});
            }
        }));
    }));


});

Answer 2

去看官网文档吧，用 express 或者 koa

Answer 3

返回个json格式的字符串即可