const options = {method: 'GET', headers: {'x-dolfin-api-key': '<api-key>'}};

fetch('https://api.dolfinai.co/v1/payables/categories', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.dolfinai.co/v1/payables/categories"

headers = {"x-dolfin-api-key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

using RestSharp;


var options = new RestClientOptions("https://api.dolfinai.co/v1/payables/categories");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("x-dolfin-api-key", "<api-key>");
var response = await client.GetAsync(request);

Console.WriteLine("{0}", response.Content);

curl --request GET \
  --url https://api.dolfinai.co/v1/payables/categories \
  --header 'x-dolfin-api-key: <api-key>'

[
  {
    "key": "<string>",
    "displayName": "<string>",
    "source": "<string>"
  }
]

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "instance": "<string>"
}