# Url encode

> Supported in: Batch, Faster, Streaming

Percent-encodes a string to be sent in a url.

**Expression categories:** String

## Declared arguments

* **Expression:** The expression to url encode.<br>*Expression\<String>*

**Output type:** *String*

## Examples

### Example 1: Base case

**Argument values:**

* **Expression:** `string`

| string | **Output** |
| ----- | ----- |
| raw\_string\_with\_no\_special\_characters | raw\_string\_with\_no\_special\_characters |
| test/api?string=3 | test%2Fapi%3Fstring%3D3 |

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### Example 2: Null case

**Argument values:**

* **Expression:** *null*

**Output:** *null*

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