# Daxium Air REST API

Official API documentation for **Daxium Air**, version **v1.3**.

All calls must be encrypted using **TLS 1.2** or later, and every request must include the version header:

```
X-Accept-Version: v1.3
```

#### Authentication

The API uses **OAuth 2.0**. Every request (except token requests) must include a Bearer token:

```
Authorization: Bearer <access_token>
```

| Token           | Validity |
| --------------- | -------- |
| `access_token`  | 1 hour   |
| `refresh_token` | 42 days  |

#### Field filtering

Any endpoint that returns objects supports limiting the returned fields:

```
GET /{app_short}/any_route?fields=id,created_at
```

#### Error format

All errors return a standardised JSON body:

```json
{
  "code": "DAERR-API1000",
  "message": "Invalid payload format",
  "url": "https://doc-dev.daxium-air.com/errors.en.html#DAERR-API1000",
  "api_version": "v1.3",
  "infos": [],
  "server_time": "1760616000"
}
```


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