> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wiremock.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Response Templating - String Encodings

> Working with base64, URL and form encodings.

WireMock Cloud provides several helpers for encoding and decoding values to/from various
formats.

## Base64

The `base64` helper encodes and decodes Base64:

```handlebars theme={null}
{{{base64 request.headers.X-Plain-Header}}}
{{{base64 request.headers.X-Plain-Header padding=false}}}
{{{base64 request.headers.X-Encoded-Header decode=true}}}

{{#base64}}Content to encode{{/base64}}

{{#base64 decode=true}}Q29udGVudCB0byBkZWNvZGUK{{/base64}}
```

## URLs

The `urlEncode` helper encode and decode values according to the [HTTP URL encoding standard](https://en.wikipedia.org/wiki/Percent-encoding).

```handlebars theme={null}
{{{urlEncode request.headers.X-Plain-Header}}}
{{{urlEncode request.headers.X-Encoded-Header decode=true}}}

{{#urlEncode}}Content to encode{{/urlEncode}}

{{#urlEncode decode=true}}Content%20to%20decode{{/urlEncode}}
```

## Forms

The `formData` helper parses its input as an HTTP form, returning an object containing the individual fields as attributes.
The helper takes the input string and variable name as its required parameters, with an optional `urlDecode` parameter
indicating that values should be URL decoded.

The following example will parse the request body as a form, then output a single field `formField3`:

```handlebars theme={null}
{{formData request.body 'form' urlDecode=true}}{{{form.formField3}}
```

If the form submitted has multiple values for a given field, these can be accessed by index:

```handlebars theme={null}
{{formData request.body 'form' urlDecode=true}}}{{{form.multiValueField.1}}, {{{form.multiValueField.2}}
{{formData request.body 'form' urlDecode=true}}}{{{form.multiValueField.first}}, {{{form.multiValueField.last}}
```