https://github.com/olebedev/go-duktape-fetch

Server side fetch polyfill for go-duktape
https://github.com/olebedev/go-duktape-fetch

Last synced: about 1 year ago
JSON representation

Server side fetch polyfill for go-duktape

• Host: GitHub
• URL: https://github.com/olebedev/go-duktape-fetch
• Owner: olebedev
• Created: 2015-06-12T12:10:55.000Z (about 11 years ago)
• Default Branch: v2
• Last Pushed: 2017-02-06T22:23:01.000Z (over 9 years ago)
• Last Synced: 2025-05-07T09:50:06.457Z (about 1 year ago)
• Language: Go
• Homepage:
• Size: 131 KB
• Stars: 12
• Watchers: 2
• Forks: 7
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
# go-duktape-fetch [![wercker status](https://app.wercker.com/status/fb4b5e19e7981f6aa9b0426deeaa1406/s "wercker status")](https://app.wercker.com/project/bykey/fb4b5e19e7981f6aa9b0426deeaa1406)

Fetch polyfill for [go-duktape](https://github.com/olebedev/go-duktape).

### Usage

First of all install the package `go get gopkg.in/olebedev/go-duktape-fetch.v2`.

```go

package main

import (

  "fmt"

  "gopkg.in/olebedev/go-duktape.v2"

  "gopkg.in/olebedev/go-duktape-fetch.v2"

)

func main() {

  // create an ecmascript context

  ctx := duktape.New()

  // push fetch into the global scope

  fetch.PushGlobal(ctx, nil)

  ch := make(chan string)

  ctx.PushGlobalGoFunction("cbk", func(c *duktape.Context) int {

    ch <- c.SafeToString(-1)

    return 0

  })

  // make a request

  ctx.PevalString(`

    fetch('http://ya.ru').then(function(resp) {

      return resp.text();

    }).then(function(body) {

      // release channel

      cbk(body.slice(0, 15));

    });

  `)

  // print head line of the response body

  fmt.Println(<-ch)

}

```

This program will prodice `` into stdout.

Also you can define fetch with some other good possibilities. In 

particular you can specify local http instance with `http.Handler` 

interface as a the second parameter. It will be used for all local

requests which url starts with `/`(single slash). See [tests](https://github.com/olebedev/go-duktape-fetch/blob/master/fetch_test.go) 

for more detail.