Node.js Communicate With Python-shell

I have the json data in nodejs. And I try to pass this data to python. But I can't get a reply from PythonFIle. jsonData Format [ { id: 123, option: ['A','B'],

Solution 1:

First of all, you can not send a JSON variable by send() method, because this method sends to stdin which accepts only string and bytes. Please try to execute my example:

test.py

value = input()

print(f"Python script response: {value}")

test.js

const {PythonShell} = require('python-shell')

const pyshell = newPythonShell('test.py');

pyshell.send(JSON.stringify({"hello": "hello"}));

pyshell.on('message', function (message) {
  console.log(message);
});

pyshell.end(function (err,code,signal) {
  if (err) throw err;
  console.log('finished');
});

If this example works for you, then change {"hello": "hello"} to jsonData.

I hope that I helped you.