curl --request POST \
  --url https://app.chatobserver.com/api/v2/metrics/import-sources/{sourceObjectId}/upload-session \
  --header 'x-chatobserver-key: <api-key>'

const options = {method: 'POST', headers: {'x-chatobserver-key': '<api-key>'}};

fetch('https://app.chatobserver.com/api/v2/metrics/import-sources/{sourceObjectId}/upload-session', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://app.chatobserver.com/api/v2/metrics/import-sources/{sourceObjectId}/upload-session"

headers = {"x-chatobserver-key": "<api-key>"}

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

print(response.text)

{
  "data": {
    "sourceObjectId": "<string>",
    "method": "PUT",
    "url": "<string>",
    "headers": {},
    "byteCount": 123,
    "expiresAt": "<string>"
  }
}

{
  "error": {
    "code": "internal",
    "fieldPath": [
      "<string>"
    ],
    "parameters": {},
    "repairActions": [
      "<string>"
    ],
    "requestId": "<string>",
    "retryable": false,
    "retryAfterSeconds": 1
  }
}