curl --request POST \
  --url https://api.kallabot.com/v1/web-call-sessions/{call_id}/client/offer \
  --header 'Content-Type: application/json' \
  --header 'X-Webcall-Grant: <api-key>' \
  --data '
{
  "sdp": "<string>",
  "type": "<string>"
}
'

const options = {
  method: 'POST',
  headers: {'X-Webcall-Grant': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({sdp: '<string>', type: '<string>'})
};

fetch('https://api.kallabot.com/v1/web-call-sessions/{call_id}/client/offer', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.kallabot.com/v1/web-call-sessions/{call_id}/client/offer"

payload = {
    "sdp": "<string>",
    "type": "<string>"
}
headers = {
    "X-Webcall-Grant": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "sdp": "<string>",
  "type": "<string>",
  "pc_id": "<string>"
}

{
  "type": "https://docs.kallabot.com/errors/unsupported_api_version",
  "title": "Kallabot-Version names a version this API doesn't have",
  "status": 400,
  "code": "unsupported_api_version",
  "retryable": false
}

{
  "type": "https://docs.kallabot.com/errors/invalid_webcall_origin",
  "title": "The page's origin isn't the one this session was created for",
  "status": 403,
  "code": "invalid_webcall_origin",
  "retryable": false
}

{
  "type": "https://docs.kallabot.com/errors/not_found",
  "title": "No session for this grant (missing, wrong or expired)",
  "status": 404,
  "code": "not_found",
  "retryable": false
}

{
  "type": "https://docs.kallabot.com/errors/revision_conflict",
  "title": "Conflicts with the resource's current state",
  "status": 409,
  "code": "revision_conflict",
  "retryable": false
}

{
  "type": "https://docs.kallabot.com/errors/invalid_request",
  "title": "One or more fields are not valid",
  "status": 422,
  "code": "invalid_request",
  "retryable": false
}

{
  "type": "https://docs.kallabot.com/errors/sdk_version_unsupported",
  "title": "This SDK release is switched off: upgrade the SDK",
  "status": 426,
  "code": "sdk_version_unsupported",
  "retryable": false
}

{
  "type": "https://docs.kallabot.com/errors/rate_limited",
  "title": "Too many requests",
  "status": 429,
  "code": "rate_limited",
  "retryable": true
}

{
  "type": "https://docs.kallabot.com/errors/internal_error",
  "title": "Something went wrong on our side",
  "status": 500,
  "code": "internal_error",
  "retryable": true
}