curl --request POST \
  --url https://app.chatobserver.com/api/v2/metrics/client/writes/{writeClaimId}/checkpoints \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-metrics-client-audience: <x-metrics-client-audience>' \
  --header 'x-metrics-document-reference: <x-metrics-document-reference>' \
  --data '
{
  "generation": 123,
  "rowCount": 123,
  "batchNumber": 1,
  "startRowOffset": 1,
  "resultPageCursor": "<string>",
  "batchChecksum": "<string>",
  "writtenRange": "<string>"
}
'

const options = {
  method: 'POST',
  headers: {
    'x-metrics-client-audience': '<x-metrics-client-audience>',
    'x-metrics-document-reference': '<x-metrics-document-reference>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    generation: 123,
    rowCount: 123,
    batchNumber: 1,
    startRowOffset: 1,
    resultPageCursor: '<string>',
    batchChecksum: '<string>',
    writtenRange: '<string>'
  })
};

fetch('https://app.chatobserver.com/api/v2/metrics/client/writes/{writeClaimId}/checkpoints', 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/client/writes/{writeClaimId}/checkpoints"

payload = {
    "generation": 123,
    "rowCount": 123,
    "batchNumber": 1,
    "startRowOffset": 1,
    "resultPageCursor": "<string>",
    "batchChecksum": "<string>",
    "writtenRange": "<string>"
}
headers = {
    "x-metrics-client-audience": "<x-metrics-client-audience>",
    "x-metrics-document-reference": "<x-metrics-document-reference>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "data": {
    "writeClaimId": "<string>",
    "generation": 123,
    "nextRowOffset": 123,
    "rowsWritten": 123,
    "replayed": false
  }
}

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