Tons of Solutions Engineering work done today for the rest of the CS team! Headway, Howard Hanna, Engels, Brighton, etc. Also completed Datasnippers auth flow and worked on Anthology's script. Cloned Anthology's courses (900..) and will clone Full Story on Monday.
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Scripts/node_modules/get-uri/README.md
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get-uri
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=======
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### Returns a `stream.Readable` from a URI string
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This high-level module accepts a URI string and returns a `Readable` stream
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instance. There is built-in support for a variety of "protocols", and it's
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easily extensible with more:
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| Protocol | Description | Example
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|:---------:|:-------------------------------:|:---------------------------------:
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| `data` | [Data URIs][data] | `data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D`
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| `file` | [File URIs][file] | `file:///c:/windows/example.ini`
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| `ftp` | [FTP URIs][ftp] | `ftp://ftp.kernel.org/pub/site/README`
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| `http` | [HTTP URIs][http] | `http://www.example.com/path/to/name`
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| `https` | [HTTPS URIs][https] | `https://www.example.com/path/to/name`
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Example
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-------
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To simply get a `stream.Readable` instance from a `file:` URI, try something like:
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```ts
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import { getUri } from 'get-uri';
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// `file:` maps to a `fs.ReadStream` instance…
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const stream = await getUri('file:///Users/nrajlich/wat.json');
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stream.pipe(process.stdout);
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```
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Missing Endpoints
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-----------------
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When you pass in a URI in which the resource referenced does not exist on the
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destination server, then a `NotFoundError` will be thrown. The `code` of the
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error instance is set to `"ENOTFOUND"`, so you can check for that value
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to detect when a bad filename is requested:
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```ts
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try {
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await getUri('http://example.com/resource.json');
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} catch (err) {
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if (err.code === 'ENOTFOUND') {
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// bad file path requested
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} else {
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// something else bad happened...
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throw err;
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}
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}
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```
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Cacheability
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------------
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When calling `getUri()` with the same URI multiple times, the `get-uri` module
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supports sending an indicator that the remote resource has not been modified
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since the last time it has been retreived from that node process.
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To do this, define a `cache` property on the "options object" argument
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with the value set to the `stream.Readable` instance that was previously
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returned. If the remote resource has not been changed since the last call for
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that same URI, then a `NotModifiedError` instance will be thrown with its
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`code` property set to `"ENOTMODIFIED"`.
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When the `"ENOTMODIFIED"` error occurs, then you can safely re-use the
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results from the previous `getUri()` call for that same URI:
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``` js
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// First time fetches for real
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const stream = await getUri('http://example.com/resource.json');
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try {
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// … some time later, if you need to get this same URI again, pass in the
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// previous `stream.Readable` instance as `cache` option to potentially
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// have an "ENOTMODIFIED" error thrown:
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await getUri('http://example.com/resource.json', { cache: stream });
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} catch (err) {
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if (err.code === 'ENOTMODIFIED') {
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// source file has not been modified since last time it was requested,
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// so you are expected to re-use results from a previous call to `getUri()`
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} else {
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// something else bad happened...
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throw err;
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}
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}
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```
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API
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---
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### getUri(uri: string | URL, options?: Object]): Promise<Readable>
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A `uri` is required. An optional `options` object may be passed in:
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- `cache` - A `stream.Readable` instance from a previous call to `getUri()` with the same URI. If this option is passed in, and the destination endpoint has not been modified, then an `ENOTMODIFIED` error is thrown
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Any other options passed in to the `options` object will be passed through
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to the low-level connection creation functions (`http.get()`, `ftp.connect()`,
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etc).
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Returns a `stream.Readable` instance to read the resource at the given `uri`.
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[data]: http://tools.ietf.org/html/rfc2397
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[file]: http://tools.ietf.org/html/draft-hoffman-file-uri-03
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[ftp]: http://www.w3.org/Protocols/rfc959/
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[http]: http://www.w3.org/Protocols/rfc2616/rfc2616.html
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[https]: http://wikipedia.org/wiki/HTTP_Secure
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