curl --request POST \
  --url https://app.communicate.so/api/v1/workspaces/{workspaceId}/inbox/{conversationId}/attachments/confirm \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "filename": "<string>",
  "contentType": "<string>",
  "attachmentId": "<string>",
  "key": "<string>",
  "sizeBytes": 123
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    filename: '<string>',
    contentType: '<string>',
    attachmentId: '<string>',
    key: '<string>',
    sizeBytes: 123
  })
};

fetch('https://app.communicate.so/api/v1/workspaces/{workspaceId}/inbox/{conversationId}/attachments/confirm', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://app.communicate.so/api/v1/workspaces/{workspaceId}/inbox/{conversationId}/attachments/confirm"

payload = {
    "filename": "<string>",
    "contentType": "<string>",
    "attachmentId": "<string>",
    "key": "<string>",
    "sizeBytes": 123
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "id": "<string>",
  "filename": "<string>",
  "contentType": "<string>",
  "detectedContentType": "<string>",
  "sizeBytes": 4503599627370495,
  "kind": "<string>",
  "attachmentState": "<string>",
  "messageId": "<string>"
}