curl --request POST \
  --url https://api.letsdothis.com/v0/opt-ins \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "emailAddress": "jsmith@example.com",
  "source": "<string>",
  "originId": "<string>"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({emailAddress: 'jsmith@example.com', source: '<string>', originId: '<string>'})
};

fetch('https://api.letsdothis.com/v0/opt-ins', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.letsdothis.com/v0/opt-ins"

payload = {
    "emailAddress": "jsmith@example.com",
    "source": "<string>",
    "originId": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "emailAddress": "<string>",
  "postcode": "<string>"
}

{
  "error": "validation_failed",
  "message": "<string>",
  "issues": [
    {
      "path": "<string>",
      "code": "<string>",
      "message": "<string>",
      "sourcePath": "<string>"
    }
  ]
}

{
  "statusCode": 401,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 403,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 404,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 409,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 413,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 415,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 429,
  "error": "<string>",
  "message": "<string>"
}

{
  "statusCode": 500,
  "error": "<string>",
  "message": "<string>"
}