The accounting platform, as an API

// Create an API client under organization settings → integrations,
// then exchange its credentials for a token:
let http = reqwest::Client::new();

let token: serde_json::Value = http
    .post("https://auth.next.accountflow.com/realms/accountflow/protocol/openid-connect/token")
    .form(&[
        ("grant_type", "client_credentials"),
        ("client_id", "com.accountflow.api.prod.4be9a1c803f2"),
        ("client_secret", "your-client-secret"),
    ])
    .send().await?.json().await?;

let whoami = http
    .get("https://api.next.accountflow.com/v1/whoami")
    .bearer_auth(token["access_token"].as_str().unwrap())
    .send().await?.text().await?;

println!("{whoami}"); // {"clientId":"...","mode":"SYSTEM","organizationId":"..."}

// Create an API client under organization settings → integrations,
// then exchange its credentials for a token:
var http = HttpClient.newHttpClient();

var form = "grant_type=client_credentials"
    + "&client_id=com.accountflow.api.prod.4be9a1c803f2"
    + "&client_secret=your-client-secret";
var tokenJson = http.send(HttpRequest.newBuilder()
        .uri(URI.create("https://auth.next.accountflow.com/realms/accountflow/protocol/openid-connect/token"))
        .header("Content-Type", "application/x-www-form-urlencoded")
        .POST(BodyPublishers.ofString(form)).build(), BodyHandlers.ofString()).body();
var token = new ObjectMapper().readTree(tokenJson).get("access_token").asText();

var whoami = http.send(HttpRequest.newBuilder()
        .uri(URI.create("https://api.next.accountflow.com/v1/whoami"))
        .header("Authorization", "Bearer " + token).build(), BodyHandlers.ofString());
System.out.println(whoami.body()); // {"clientId":"...","mode":"SYSTEM",...}

# Create an API client under organization settings → integrations,
# then exchange its credentials for a token:
import requests

token = requests.post(
    "https://auth.next.accountflow.com/realms/accountflow/protocol/openid-connect/token",
    data={
        "grant_type": "client_credentials",
        "client_id": "com.accountflow.api.prod.4be9a1c803f2",
        "client_secret": "your-client-secret",
    },
).json()["access_token"]

whoami = requests.get(
    "https://api.next.accountflow.com/v1/whoami",
    headers={"Authorization": f"Bearer {token}"},
)
print(whoami.json())  # {'clientId': '...', 'mode': 'SYSTEM', 'organizationId': '...'}

// Create an API client under organization settings → integrations,
// then exchange its credentials for a token:
const tokenResponse = await fetch(
  "https://auth.next.accountflow.com/realms/accountflow/protocol/openid-connect/token",
  {
    method: "POST",
    headers: { "Content-Type": "application/x-www-form-urlencoded" },
    body: new URLSearchParams({
      grant_type: "client_credentials",
      client_id: "com.accountflow.api.prod.4be9a1c803f2",
      client_secret: "your-client-secret",
    }),
  },
);
const { access_token } = await tokenResponse.json();

const whoami = await fetch("https://api.next.accountflow.com/v1/whoami", {
  headers: { Authorization: `Bearer ${access_token}` },
});
console.log(await whoami.json()); // { clientId: "...", mode: "SYSTEM", ... }