javascript - http 模块(带有 browserify 的 node.js)不使用 PATCH 方法编写请求正文

Question

我一直在开发一个网络客户端来与 REST API 服务器交互，并且想使用 PATCH 方法。

尽管我尝试将请求主体写入 PATCH 的请求中，但我发现主体仍然是空的。 PUT 或 POST 以相同的方式工作正常。

我可以改用 PUT，但是有人知道我对 http 模块的使用是否有误吗？

提前谢谢你。

var http = require('http');

module.exports = {

  patch: function(path, data, done, fail){
    var jsonData = JSON.stringify(data);
    var options = {
      headers: {
        'Content-Type':'application/json;charset=UTF-8',
        'Content-Length':jsonData.length,
      }
    };
    var req = this.request(path, "PATCH", done, fail, options);

    // THIS CODE DOESN'T WRITE jsonData INTO REQUEST BODY
    req.write(jsonData);
    req.end();
  },

  request: function(path, method, done = () => {}, fail = () => {}, options = { headers: {} } ){
    options.path = path;
    options.method = method;
    return http.request(options, function(res){
      var body = '';
      res.setEncoding('utf8');
      res.on("data", function(chunk){
        body += chunk;
      });
      res.on("end", function(){
        // process after receiving data from server
      });
    }).on("error", function(e) {
      // process after receiving error
    });
  }
}

Answer 1

我最终使用了 node.js 的“请求”库。以下代码有效:

var request = require("request");
(...)

function patch(path, entity){
    var deferred = q.defer();     
    var escapedPath = escapeSpaces(path);
    AuthProvider.retrieveToken().done(function (authToken){
        var headers ={
            'OData-MaxVersion': '4.0',
            'OData-Version': '4.0',
            'Content-Type': 'application/json; charset=utf-8',
            'Authorization': 'Bearer '+ authToken,
            'Accept': 'application/json'     
        }

        var options = {
            url: "https://"+resourceApiId+"/api/data/v8.0/"+escapedPath,
            method: 'PATCH',
            headers: {
                'OData-MaxVersion': '4.0',
                "OData-Version": '4.0',
                "Content-Type": "application/json; charset=utf-8",
                "Authorization": 'Bearer '+ authToken,
                "Accept": "application/json"                
            },
            json: entity      
        };  

        request(options, function(error, response, body){
                if (!error) {
                    console.log("patchrequest statuscode: "+response.statusCode )
                    deferred.resolve(true);
                }
                deferred.reject(error);
            }
        );
    });

    return deferred.promise;
}