| 1 | async function fetch (url, options) {
|
| 2 | let protocol = null
|
| 3 |
|
| 4 | if (/^[a-z]+:/.test(url)) {
|
| 5 | protocol = new URL(url).protocol.slice(0, -1)
|
| 6 | }
|
| 7 |
|
| 8 | if (protocol in this.protocols) {
|
| 9 | return this.protocols[protocol](url, options)
|
| 10 | }
|
| 11 |
|
| 12 | throw new Error(`unknown protocol: ${protocol}`)
|
| 13 | }
|
| 14 |
|
| 15 | function factory (protocols) {
|
| 16 | const instance = (url, options) => {
|
| 17 | return fetch.call(instance, url, options)
|
| 18 | }
|
| 19 |
|
| 20 | instance.protocols = protocols
|
| 21 |
|
| 22 | return instance
|
| 23 | }
|
| 24 |
|
| 25 | export default factory
|