Currently, I am working on coding in IronPython and facing an issue while attempting to send an HTTP POST request to the server with JSON in the request body. To achieve this, I am utilizing the C# method: HttpWebRequest. Despite knowing that there are more advanced and simpler methods available, I have no choice but to stick with this approach.
The backend of my project is built using Express in Node.js.
Below is a snippet of my client-side code:
import json
import clr
clr.AddReference('System')
clr.AddReference('System.IO')
clr.AddReference('System.Net')
from System import Uri
from System.Net import HttpWebRequest
from System.Net import HttpStatusCode
from System.IO import StreamReader, StreamWriter
def post(url, data):
req = HttpWebRequest.Create(Uri(url))
req.Method = "POST"
req.ContentType = "application/json"
json_data = json.dumps(data)
reqStream = req.GetRequestStream()
streamWriter = StreamWriter(reqStream)
streamWriter.Write(json_data)
streamWriter.Flush()
streamWriter.Close()
res = req.GetResponse()
if res.StatusCode == HttpStatusCode.OK:
responseStream = res.GetResponseStream()
reader = StreamReader(responseStream)
responseData = reader.ReadToEnd()
return responseData
res = post('http://localhost:5050/hello', postData)
print(res)
Moreover, here is a glimpse of my server-side code:
const express = require("express");
let app = express();
const PORT = process.env.PORT || 5050;
app.post("/hello", (req, res) => {
console.log("Hi!")
console.log(req.body)
res.json({"message": "Hello World"})
})
app.listen(PORT, () => {
console.log(`Server listening on port ${PORT}`);
});
Following the execution of my client code, I receive the server's response {"message": "Hello World"} in the output.
However, despite seeing the log message "Hi!" on the server end, the value of req.body appears as undefined.
I have invested significant effort into troubleshooting this issue without success. I am puzzled by why I cannot retrieve the JSON sent from the client and only get undefined. If anyone could assist me in resolving this dilemma, it would be greatly appreciated.