Question

开始使用node.js来处理rest api.Badly遇到问题，不知道如何修复它。调用http://localhost:8080/api/write/v1.0/login

时打印错误

money

任何帮助将不胜感激。

App.js

TypeError: Function.prototype.apply: Arguments list has wrong type
<br> &nbsp; &nbsp;at /Volumes/Developer/Node Sample/sample/app.js:38:16
    <br> &nbsp; &nbsp;at Layer.handle [as handle_request] (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/layer.js:95:5)
        <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:131:13)
            <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)
                <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)
                    <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)
                        <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)
                            <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)
                                <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)
                                    <br> &nbsp; &nbsp;at next (/Volumes/Developer/Node Sample/sample/node_modules/express/lib/router/route.js:125:14)

Api.js

var express    = require('express');        // call express
var app        = express();                 // define our app using express
var bodyParser = require('body-parser');
var dbUtils = require('./utility/dbUtilties.js');

var config = require('./config/config.js');
var  api = require('./api/api');


// configure app to use bodyParser()
// this will let us get the data from a POST
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());

var port = process.env.PORT || 8080;        // set our port

// ROUTES FOR OUR API
// =============================================================================
var router = express.Router();              // get an instance of the express Router

// test route to make sure everything is working (accessed at GET http://localhost:8080/api)
//router.get('/', function(req, res) {
//    var params = req.body;
//    var db = dbUtils.connect();
//    if(db){
//        console.log(db);
//    res.json({ message: 'hooray! welcome to our api!' });
//    }else{
//        res.json({ message: 'connection failed' });
//    }
//});


app.all('/api/write/'+config.WRITE_API_VERSION+'/:apiName', function (req, res) {

    console.log("in api end1");

    api.handle.apply('write' , req.method.toLowerCase(), 'req.params.apiName', req, res);
});

app.all('/api/read/'+config.READ_API_VERSION+'/:apiName', function (req, res) {

        console.log("in api end2");

    api.handle.apply('read' , req.method.toLowerCase(), req.params.apiName, req, res);
});


// more routes for our API will happen here

// REGISTER OUR ROUTES -------------------------------
// all of our routes will be prefixed with /api
app.use('/api', router);

// START THE SERVER
// =============================================================================
app.listen(port);
console.log('Magic happens on port ' + port);

Answer 1

错误非常明确：

TypeError：Function.prototype.apply：参数列表的类型错误

Function.prototype.apply()签名是fun.apply(thisArg, [argsArray])，它期望一个对象（或null）后跟一个数组，你首先传递一个字符串。您的apply电话应如下：

api.handle.apply(null, ['write', req.method.toLowerCase(), 'req.params.apiName', req, res]);

如果您没有任何具体的理由使用apply（例如将thisArg设置为特定值），您只需调用该函数：

api.handle('write', req.method.toLowerCase(), 'req.params.apiName', req, res);

Rest api，node.js无法找到路由

1 个答案: