curl --request POST \
  --url http://127.0.0.1:3333/v3/sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "botId": "<string>",
  "bot": "<unknown>",
  "previewToken": "<string>",
  "sessionId": "<string>",
  "isPreview": true,
  "channel": "web",
  "prefilledVariables": {},
  "resultId": "<string>",
  "isStreamEnabled": true,
  "isOnlyRegistering": true,
  "textBubbleContentFormat": "richText",
  "startFrom": "<unknown>",
  "message": "<unknown>",
  "origin": "<string>",
  "iframeReferrerOrigin": "<string>"
}
'

import requests

url = "http://127.0.0.1:3333/v3/sessions"

payload = {
    "botId": "<string>",
    "bot": "<unknown>",
    "previewToken": "<string>",
    "sessionId": "<string>",
    "isPreview": True,
    "channel": "web",
    "prefilledVariables": {},
    "resultId": "<string>",
    "isStreamEnabled": True,
    "isOnlyRegistering": True,
    "textBubbleContentFormat": "richText",
    "startFrom": "<unknown>",
    "message": "<unknown>",
    "origin": "<string>",
    "iframeReferrerOrigin": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    botId: '<string>',
    bot: '<unknown>',
    previewToken: '<string>',
    sessionId: '<string>',
    isPreview: true,
    channel: 'web',
    prefilledVariables: {},
    resultId: '<string>',
    isStreamEnabled: true,
    isOnlyRegistering: true,
    textBubbleContentFormat: 'richText',
    startFrom: '<unknown>',
    message: '<unknown>',
    origin: '<string>',
    iframeReferrerOrigin: '<string>'
  })
};

fetch('http://127.0.0.1:3333/v3/sessions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "result": {
    "id": "<string>",
    "isCompleted": true
  },
  "resultId": "<string>",
  "sessionId": "<string>",
  "bot": "<unknown>",
  "messages": [
    "<unknown>"
  ],
  "input": "<unknown>",
  "lastMessageNewFormat": "<string>",
  "dynamicTheme": "<unknown>",
  "logs": [
    "<unknown>"
  ],
  "clientSideActions": [
    "<unknown>"
  ],
  "progress": 123,
  "hasReachedLimit": true,
  "error": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}