curl --request POST \
  --url https://www.dench.com/api/v1/email/campaigns/{campaignId}/preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "sample": 5
}'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({sample: 5})
};

fetch('https://www.dench.com/api/v1/email/campaigns/{campaignId}/preview', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://www.dench.com/api/v1/email/campaigns/{campaignId}/preview"

payload = { "sample": 5 }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "campaignId": "ecmp_abc123",
  "previews": [
    {
      "recipientId": "ecr_abc123",
      "to": "ada@lovelace.dev",
      "subject": "Hi Ada",
      "htmlBody": "<p>Hi Ada, saw your work at Lovelace Labs.</p>"
    }
  ]
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}