> For the complete documentation index, see [llms.txt](https://docs.licensespring.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.licensespring.com/sdks/go-sdk/v2/samples/floating-license.md).

# Floating License

### License Check

{% hint style="info" %}
If the license is of **floating cloud** type, calling `CheckLicense` will automatically assign one floating slot to the current machine, identified by its hardware ID.
{% endhint %}

The `CheckLicense` function is not only used to validate the current license status, but also plays a role in floating licenses.

{% code title="example.go" %}

```go
ld, err = lh.CheckLicense(ctx)
if err != nil {
	return err
}
```

{% endcode %}

### Borrow

Floating licenses come with a predefined **floating period**—a time frame in which the license is valid on a given machine. If the license configuration allows, this period can be **borrowed** or **extended** for offline usage.

You can extend the floating period using one of two methods:

{% stepper %}
{% step %}

### Borrow for a Specific Number of Hours and Days

{% code title="borrow\_hours\_days.go" %}

```go
ld, err = lh.BorrowHoursAndDays(ctx, 3, 0)
if err != nil {
	return err
}
```

{% endcode %}

These functions will only succeed if the license allows borrowing and there are available slots or permissions for the request.
{% endstep %}

{% step %}

### Borrow Until a Specific Time

{% code title="borrow\_until.go" %}

```go
t := time.Now().Add(3 * time.Hour).UTC()
ld, err = lh.Borrow(ctx, &t)
if err != nil {
	fmt.Println("license borrow error: %w", err)
	return err
}
```

{% endcode %}

These functions will only succeed if the license allows borrowing and there are available slots or permissions for the request.
{% endstep %}
{% endstepper %}

### Release Floating License

If you no longer need the license on the current machine, or want to release a floating slot before the borrow period ends, you can call:

{% code title="release\_floating.go" %}

```go
ld, err = lh.ReleaseFloatingLicense(ctx)
if err != nil {
	return err
}
```

{% endcode %}

This function immediately frees up the slot assigned to the current machine, making it available for others.


---

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```
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