83 lines
2.0 KiB
Markdown
83 lines
2.0 KiB
Markdown
# Metabolize
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[](https://travis-ci.org/keighl/metabolize) [](https://coveralls.io/r/keighl/metabolize)
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Decodes HTML <meta> values into a Golang struct. Great for quickly grabbing [open graph](http://ogp.me/) data.
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### Installation
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go get -u github.com/keighl/metabolize
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### Usage
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Use `meta:"xxx"` tags on your struct to tell metabolize how to decode metadata from an HTML document.
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```go
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type MetaData struct {
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Title string `meta:"og:title"`
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// If no `og:description`, will fall back to `description`
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Description string `meta:"og:description,description"`
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}
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```
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Example
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```go
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package main
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import (
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"fmt"
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m "github.com/keighl/metabolize"
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"net/http"
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"net/url"
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)
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type MetaData struct {
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Title string `meta:"og:title"`
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Description string `meta:"og:description,description"`
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Type string `meta:"og:type"`
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URL url.URL `meta:"og:url"`
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VideoWidth int64 `meta:"og:video:width"`
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VideoHeight int64 `meta:"og:video:height"`
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}
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func main() {
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res, _ := http.Get("https://www.youtube.com/watch?v=FzRH3iTQPrk")
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data := new(MetaData)
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err := m.Metabolize(res.Body, data)
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if err != nil {
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panic(err)
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}
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fmt.Printf("Title: %s\n", data.Title)
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fmt.Printf("Description: %s\n", data.Description)
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fmt.Printf("Type: %s\n", data.Type)
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fmt.Printf("URL: %s\n", data.URL.String())
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fmt.Printf("VideoWidth: %d\n", data.VideoWidth)
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fmt.Printf("VideoHeight: %d\n", data.VideoHeight)
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}
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```
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Outputs:
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```
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Title: The Sneezing Baby Panda
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Description: A Baby Panda Sneezing Original footage taken and being used with kind permission of LJM Productions Pty. Ltd.,/Wild Candy Pty. Ltd. Authentic t-shirts http:/...
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Type: video
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URL: http://www.youtube.com/watch?v=FzRH3iTQPrk
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VideoWidth: 480
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VideoHeight: 360
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```
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### Supported types
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* `string`
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* `bool`
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* `float64`
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* `int64`
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* `time.Time`
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* `url.URL`
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