# Get Currency

**Endpoint**

`GET/v2/currency/{iso}`

**Link**

{% embed url="<https://stagep.tst-apidmndelss.com/openapi/v2.html#/operations/Currency_Get>" %}

### **Request**

#### **Path Parameters**

| Parameter | Type     | Description                            | Required | Example |
| --------- | -------- | -------------------------------------- | -------- | ------- |
| **`iso`** | `string` | **ISO 4217 currency code** (3-letter). | Yes      | `"USD"` |

#### **Headers**

| Key             | Value              | Required |
| --------------- | ------------------ | -------- |
| `Authorization` | `Bearer <JWT>`     | Yes      |
| `Accept`        | `application/json` | Yes      |

***

### **Response (200 OK)**

Returns a currency object with detailed information.

#### **Response Fields**

| Field           | Type      | Description                                     | Example       |
| --------------- | --------- | ----------------------------------------------- | ------------- |
| **`iso`**       | `string`  | **ISO 4217 currency code** (3-letter).          | `"USD"`       |
| **`name`**      | `string`  | **Full currency name**.                         | `"US Dollar"` |
| **`isCrypto`**  | `boolean` | `true` for cryptocurrencies.                    | `false`       |
| **`isDefault`** | `boolean` | `true` for system default currency.             | `true`        |
| **`rate`**      | `number`  | **Exchange rate** relative to default currency. | `1.0`         |

**Example Response:**

json

```
{
  "iso": "USD",
  "name": "US Dollar",
  "isCrypto": false,
  "isDefault": true,
  "rate": 1.0
}
```

***

### **Examples**

#### **Request**

bash

```
curl -X GET 'https://stagep.tst-apidmndelss.com/v2/currency/USD' \
  -H 'Authorization: Bearer eyJhbGci...wNLGA' \
  -H 'Accept: application/json'
```

#### **Crypto Currency Example**

**Request:**

bash

```
curl -X GET 'https://stagep.tst-apidmndelss.com/v2/currency/BTC' \
  -H 'Authorization: Bearer eyJhbGci...wNLGA' \
  -H 'Accept: application/json'
```

**Response:**

json

```
{
  "iso": "BTC",
  "name": "Bitcoin",
  "isCrypto": true,
  "isDefault": false,
  "rate": 0.000025
}
```

***

### **Error Responses**

1. **Currency Not Found**:

   json

   ```
   {
     "error": "Currency not found: XYZ"
   }
   ```
2. **Invalid ISO Code**:

   json

   ```
   {
     "error": "Invalid currency code format. Must be 3 letters."
   }
   ```

***

### **Notes**

* **Rate Basis**:
  * Exchange rates are relative to the **default currency** (where `isDefault: true`).
  * Example: If EUR is default, USD rate `1.07` means 1 EUR = 1.07 USD.
* **Crypto Currencies**:
  * Use standard cryptocurrency ticker symbols (e.g., `BTC`, `ETH`, `USDT`).
  * Rates update frequently due to market volatility.
* **Default Currency**:
  * Only one currency can be marked as default in the system.
  * Used as base for accounting and reporting.

Real request Example

```postman_json
Authorization:
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOjE2NCwiZXhwIjoxNzYxMTMwNDc2LCJrZXkiOiI1Y2ZiOGZjN2RmYjk4ZjVkYmIyZTgwNTVkZWFhN2U2Zjk4MzEyYmE3Iiwib3RwX3ZlcmlmaWVkIjpmYWxzZX0.llC0NQeIZUymVFKIHI7d1q_IFW39qD0QYd7i0KWKxyA
code*: USD
```

Real response example

200 OK

```postman_json
{
  "code": "USD",
  "name": "USD",
  "isCrypto": false,
  "isDefault": true,
  "rate": 1
}
```

<br>


---

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