curl --request POST \
  --url https://my.server.express/api/v1/livechat/start \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "email": "<string>",
  "firstMessage": "<string>",
  "existingThreadId": "<string>"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: '<string>',
    email: '<string>',
    firstMessage: '<string>',
    existingThreadId: '<string>'
  })
};

fetch('https://my.server.express/api/v1/livechat/start', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://my.server.express/api/v1/livechat/start"

payload = {
    "name": "<string>",
    "email": "<string>",
    "firstMessage": "<string>",
    "existingThreadId": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "success": true,
  "data": {
    "sessionId": "<string>",
    "threadId": "<string>",
    "wsUrl": "<string>",
    "identity": {
      "name": "<string>",
      "email": "<string>",
      "userId": "<string>"
    }
  }
}

{
  "success": false,
  "error": "<string>"
}

{
  "success": false,
  "error": "<string>"
}

{
  "success": false,
  "error": "<string>"
}

{
  "success": false,
  "error": "<string>"
}

{
  "success": false,
  "error": "<string>"
}