# Markdown

**Content-Type: "text/html"**

Iris can be used to parse and render markdown contents as HTML to the web client.

```go
Markdown(contents []byte, options ...Markdown) (int, error)
```

It accepts the raw `[]byte` contents and optionally `Markdown` options structure which contains a single `Sanitize bool` field. If `Sanitize` is set to true then it takes a `[]byte` that contains a HTML fragment or document and applies the `UGCPolicy`. The UGCPolicy is a policy aimed at user generated content that is a result of `HTML WYSIWYG` tools and Markdown conversions. This is expected to be a fairly rich document where as much markup as possible should be retained. Markdown permits raw HTML so we are basically providing a policy to sanitise **HTML5 documents safely** but with the least intrusion on the formatting expectations of the user.

```go
func handler(ctx iris.Context) {
    response := []byte(`# Hello Dynamic Markdown -- Iris`)
    ctx.Markdown(response)
}
```

**Result**

```html
<h1>Hello Dynamic Markdown &ndash; Iris</h1>
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://iris-go.gitbook.io/iris/responses/markdown.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.