Documentation
¶
Overview ¶
Metadata package is a set of tools to parse HTML pages to extract their metadata.
For now, the following set of metadata specifications are supported:
- HTML 5 + RDFa
- Dublin Core. Dublin Core metadata are defined here: http://www.dublincore.org/documents/dces/
- Open Graph. Open Graph metadata (Facebook) are defined here: http://ogp.me/
- Twitter. Twitter metadata are defined here: https://developer.twitter.com/en/docs/tweets/optimize-with-cards/overview/markup
Index ¶
Examples ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Page ¶
type Page struct {
Lang string `json:"lang,omitempty"`
Properties Properties `json:"properties,omitempty"`
// contains filtered or unexported fields
}
Page is structure holding HTML page metadata.
func ReadPage ¶
ReadPage is use to extract metadata from an HTML page. It returns a Page struct for easy manipulation of those metadata.
Example ¶
package main
import (
"fmt"
"strings"
"github.com/processone/dpk/pkg/metadata"
)
func main() {
html := `<!DOCTYPE html>
<html lang="en">
<head prefix="og: http://ogp.me/ns#">
<meta charset="utf-8"/>
<meta property="og:title" content="Open Graph title" />
</head>
<body><p>This is a test page</p></body>
</html>`
if page, err := metadata.ReadPage(strings.NewReader(html)); err != nil {
fmt.Println(page.Title())
}
}
Output: Open Graph title
type Properties ¶
Properties is a map gathering HTML page metadata properties.
Source Files
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