Question

我有以下NODEjs POST函数，它向运行python脚本的localhost端口发送请求：

function httpPost(callback, host, path, headers, body, port){

    if(port == undefined){
        port = 80;
    }

    if(headers == undefined){
        var headers = {};
    }

    if(headers['Content-Type'] == undefined)
        headers['Content-Type'] = 'application/x-www-form-urlencoded';

    var post_options = {
          host: host,
          path: path,
          port: port,
          method: 'POST',
          headers: headers
    };

    if(headers['Content-Type'] == "application/json"){
        post_options["json"] = true;
    }

    //either 'querystring' or 'JSON' do not work:
    var post_data = JSON.stringify(body);
    //var post_data = querystring.stringify(body);

     var post_req = http.request(post_options, function(res) {

          res.setEncoding('utf8');

          res.on('data', function (chunk) {
              console.log('Response: ' + chunk);
          });

      });

      // post the data
      post_req.write(post_data);
      post_req.end();

}

这是python脚本中的路由（不是由我编码）：

@app.route('/search', methods = ['POST'])
def search():
    if request.headers['Content-Type'] != 'application/json':
        return "Requests must be in JSON format. Please make sure the header is 'application/json' and the JSON is valid."

    client_json = json.dumps(request.json)
    client_data = json.loads(client_json)
    code = doSearch(client_data['image_url'])

    return parseResults(code)

这是我使用httpPost的请求：

    var headers = {
        "Content-Type": "application/json"
    }

    var body = {
        "parameter":parameter
    }

    ut.httpPost(function(response){

        callback(response);

    },host_endpoint,"/search",headers,body,5000);

1。请求在python进程中收到

2。如果我删除json内容类型，我会收到通知＆＃34;正文必须是JSON＆＃34;，所以这不是问题。

第3。这个常规请求发出400响应。没有进一步的信息：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>400 Bad Request</title>
<h1>Bad Request</h1>
<p>The browser (or proxy) sent a request that this server could not understand.</p>

在python实例中：

 Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
127.0.0.1 - - [16/Mar/2017 16:09:25] "POST /search HTTP/1.1" 400 -

那么，我到底错过了什么？ Tyvm

修改

同样， python脚本完全由cURL请求完成。它只是使用节点失败。这是doSearch python函数：

def doSearch(url):

    returned_code = StringIO()
    full_url = SEARCH_URL + url

    if app.debug:
        print 'POST: ' + url

    conn = pycurl.Curl()
    conn.setopt(conn.URL, str(full_url))
    conn.setopt(conn.FOLLOWLOCATION, 1)
    conn.setopt(conn.USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.97 Safari/537.11')
    conn.setopt(conn.WRITEFUNCTION, returned_code.write)
    conn.perform()
    conn.close()
    return returned_code.getvalue()

最后一次， python脚本完全工作如果我使用终端POST到localhost：5000（python实例正在运行）。它只在请求来自node.js函数时失败。

Nodejs POST从python实例中获取400

修改

0 个答案: