112 lines
3.8 KiB
Markdown
112 lines
3.8 KiB
Markdown
# node-miniget
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A small http(s) GET library with redirects, retries, reconnects, concatenating or streaming, and no dependencies. This keeps filesize small for potential browser use.
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[](https://codecov.io/gh/fent/node-miniget)
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# Usage
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Concatenates a response
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```js
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const miniget = require('miniget');
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miniget('http://mywebsite.com', (err, res, body) => {
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console.log('webpage contents: ', body);
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});
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// with await
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let body = await miniget('http://yourwebsite.com').text();
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```
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Request can be streamed right away
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```js
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miniget('http://api.mywebsite.com/v1/messages.json')
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.pipe(someWritableStream());
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```
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# API
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### miniget(url, [options])
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Makes a GET request. `url` can be a string or a `URL` object. `options` can have any properties from the [`http.request()` function](https://nodejs.org/api/http.html#http_http_request_options_callback), in addition to
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* `maxRedirects` - Default is `10`.
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* `maxRetries` - Number of times to retry the request if there is a 500 or connection error. Default is `2`.
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* `maxReconnects` - During a big download, if there is a disconnect, miniget can try to reconnect and continue the download where it left off. Default is `0`.
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* `backoff` - An object with `inc` and `max` used to calculate how long to wait to retry a request. Default is `{ inc: 100, max: 10000 }`.
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* `highWaterMark` - Amount of data to buffer when in stream mode.
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* `transform` - Use this to add additional features. Called with the object that `http.get()` or `https.get()` would be called with. Must return a transformed object.
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* `acceptEncoding` - An object with encoding name as the key, and the value as a function that returns a decoding stream.
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```js
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acceptEncoding: { gzip: () => require('zlip').createGunzip(stream) }
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```
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Given encodings will be added to the `Accept-Encoding` header, and the response will be decoded if the server responds with encoded content.
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Defaults are held in `miniget.defaultOptions` and can be adjusted globally.
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Miniget returns a readable stream, errors will then be emitted on the stream. Returned stream has additional methods added, and can emit the following events.
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### Stream#destroy([error])
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Destroys the request.
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### Stream#destroyed
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Set to `true` after `Stream#destroy()` has been called.
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### Stream#text()
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Returns a promise that resolves to the concatenated contents of the response.
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```js
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let body = await miniget('http://yourwebsite.com').text();
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```
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#### Event: redirect
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* `string` - URL redirected to.
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Emitted when the request was redirected with a redirection status code.
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#### Event: retry
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* `number` - Number of retry.
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* `Error` - Request or status code error.
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Emitted when the request fails, or the response has a status code >= 500.
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#### Event: reconnect
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* `number` - Number of reconnect.
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* `Error` - Request or response error.
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Emitted when the request or response fails after download has started.
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#### Event: request
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* [`http.ClientRequest`](https://nodejs.org/api/http.html#http_class_http_clientrequest) - Request.
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Emitted when a video request is made, including after any redirects, retries, and reconnects.
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#### Event: response
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* [`http.ServerResponse`](https://nodejs.org/api/http.html#http_class_http_serverresponse) - Response.
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Emitted when a video response has been found and has started downloading, including after any successful reconnects.
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#### Forwarded events
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Any events emitted from the [request](https://nodejs.org/api/http.html#http_class_http_clientrequest) or [response](https://nodejs.org/api/http.html#http_class_http_serverresponse) objects will be forwarded to the miniget stream.
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# Install
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npm install miniget
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# Tests
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Tests are written with [mocha](https://mochajs.org)
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```bash
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npm test
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```
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