curl --request POST \
  --url https://api.interchange.io/api/v2/buyer/advertisers/{advertiserId}/test-cohorts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "West Coast Treatment Group",
  "cohortType": "geographic",
  "definition": {
    "type": "zip_code"
  }
}
'

import requests

url = "https://api.interchange.io/api/v2/buyer/advertisers/{advertiserId}/test-cohorts"

payload = {
    "name": "West Coast Treatment Group",
    "cohortType": "geographic",
    "definition": { "type": "zip_code" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'West Coast Treatment Group',
    cohortType: 'geographic',
    definition: {type: 'zip_code'}
  })
};

fetch('https://api.interchange.io/api/v2/buyer/advertisers/{advertiserId}/test-cohorts', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "cohort": {
    "id": "cohort_abc123",
    "advertiserId": "12345",
    "name": "West Coast Treatment Group",
    "cohortType": "geographic",
    "role": "TREATMENT",
    "definition": {
      "type": "zip_code"
    },
    "isActive": true,
    "createdAt": "2025-01-15T10:30:00Z",
    "updatedAt": "2025-01-20T14:45:00Z",
    "description": "<string>",
    "estimatedSize": 50000
  }
}

{
  "data": null,
  "error": {
    "code": "<string>",
    "message": "<string>",
    "field": "<string>",
    "details": {}
  }
}

{
  "data": null,
  "error": {
    "code": "<string>",
    "message": "<string>",
    "field": "<string>",
    "details": {}
  }
}

{
  "data": null,
  "error": {
    "code": "<string>",
    "message": "<string>",
    "field": "<string>",
    "details": {}
  }
}