stream: utility consumers for web and node.js streams

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: nodejs#39594
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

Author: jasnell

doc/api/webstreams.md

@@ -1288,6 +1288,79 @@ added: v16.7.0
 added: v16.7.0
 -->
 
+* `stream` {ReadableStream|stream.Readable|AsyncIterator}
+* Returns: {Promise} Fulfills with the contents of the stream parsed as a
+  UTF-8 encoded string.
+
+### Utility Consumers
+<!-- YAML
+added: REPLACEME
+-->
+
+The utility consumer functions provide common options for consuming
+streams.
+
+They are accessed using:
+
+```mjs
+import {
+  arrayBuffer,
+  blob,
+  json,
+  text,
+} from 'node:stream/consumers';
+```
+
+```cjs
+const {
+  arrayBuffer,
+  blob,
+  json,
+  text,
+} = require('stream/consumers');
+```
+
+#### `streamConsumers.arrayBuffer(stream)`
+<!-- YAML
+added: REPLACEME
+-->
+
+* `stream` {ReadableStream|stream.Readable|AsyncIterator}
+* Returns: {Promise} Fulfills with an `ArrayBuffer` containing the full
+  contents of the stream.
+
+#### `streamConsumers.blob(stream)`
+<!-- YAML
+added: REPLACEME
+-->
+
+* `stream` {ReadableStream|stream.Readable|AsyncIterator}
+* Returns: {Promise} Fulfills with a {Blob} containing the full contents
+  of the stream.
+
+#### `streamConsumers.buffer(stream)`
+<!-- YAML
+added: REPLACEME
+-->
+
+* `stream` {ReadableStream|stream.Readable|AsyncIterator}
+* Returns: {Promise} Fulfills with a {Buffer} containing the full
+  contents of the stream.
+
+#### `streamConsumers.json(stream)`
+<!-- YAML
+added: REPLACEME
+-->
+
+* `stream` {ReadableStream|stream.Readable|AsyncIterator}
+* Returns: {Promise} Fulfills with the contents of the stream parsed as a
+  UTF-8 encoded string that is then passed through `JSON.parse()`.
+
+#### `streamConsumers.text(stream)`
+<!-- YAML
+added: REPLACEME
+-->
+
 * `stream` {ReadableStream|stream.Readable|AsyncIterator}
 * Returns: {Promise} Fulfills with the contents of the stream parsed as a
   UTF-8 encoded string.