# \_pay

Pay an Invoice.

### Parameters

#### id

The ID of the Invoice to be paid.

#### amt

The amount that will be paid.

### Example

```
FM_api('Invoice_pay', ['id' => '1', 'amt' => 500]);
```

### Result

#### On Success

```
{'ok':1}
```

#### On Failure

If the User is not logged in:

```
{'error':'not logged in'}
```

If the amount is not set:

```
{'error':'amount is not set'}
```