How to add parameters to Axios - node.js

Question

I am trying to implement axios POST to itop, everything works fine using POSTMAN for me to hard code "title, description, name and first name". Basically at the first start I want to make it like a webpage to input data and then submit the data to itop using POST.
Instead of me manually adding the required parameters, I want to grab the parameters from a form. As for the current script that I have, it said the URL is wrong because the actual URL should be like this instead of below (actual URL from postman: http://test.com/itop/webservices/rest.php?version=1.3&json_data={\n "operation": "core/create",\n "comment": "Synchronization from blah...",\n "class": "UserRequest",\n "output_fields": "id, friendlyname",\n "fields":\n {\n "org_id": "SELECT Organization WHERE name = \"TEST\"",\n "caller_id":\n {\n "name": "name",\n "first_name": "first_name"\n },\n "title": "Test",\n "description": "Test Ticket"\n }\n}')
Here is the code, this code will give out 404 because the request is not correct
app.post('/form-submit', (req, res) => {
let bodyData = {
"operation": "core/create",
"class": "UserRequest",
"output_fields": "id, friendlyname",
"fields": {
"org_id": "SELECT Organization WHERE name = 'TEST'",
},
"caller_id": {
"name": req.body.name,
"first_name": req.body.first_name
},
"title": req.body.title,
"description": req.body.description,
}
let axiosConfig = {
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
'Authorization': 'Basic c2FtdWVsLmNoYW5AbHlasdfasdZS5jb206W04wemgxa2FyMV0=',
'Cookie': 'itop-ffb5bc6b0d3aasdfa53a36b=g20efh3399am02aq7v8tif1b7l'
},
}
axios.post('http://test.com/itop/webservice/rest.php?version=1.3&json_data=', bodyData, axiosConfig)
.then(function (response) {
console.log("Ticket created:" + response.data)
})
.catch(function (error) {
console.log(error)
})
})
Thanks ahead for any insight provided