doc: add legacy status by jasnell · Pull Request #37784 · nodejs/node
jasnell
added
the
author ready
label
Mar 17, 2021
Signed-off-by: James M Snell <jasnell@gmail.com>
Signed-off-by: James M Snell <jasnell@gmail.com> Fixes: nodejs#25099
Signed-off-by: James M Snell <jasnell@gmail.com>
jasnell added a commit that referenced this pull request
Mar 19, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
jasnell added a commit that referenced this pull request
Mar 19, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> Fixes: #25099 PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
jasnell added a commit that referenced this pull request
Mar 19, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
ruyadorno pushed a commit that referenced this pull request
Mar 24, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
ruyadorno pushed a commit that referenced this pull request
Mar 24, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> Fixes: #25099 PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
ruyadorno pushed a commit that referenced this pull request
Mar 24, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
ruyadorno added a commit that referenced this pull request
Mar 30, 2021
Notable changes: * buffer: * implement btoa and atob (James M Snell) #37529 * deps: * upgrade npm to 7.7.6 (Ruy Adorno) #37968 * doc: * add legacy status to stability index (James M Snell) #37784 * add @Linkgoron to collaborators (Nitzan Uziely) #37817 * http: * add http.ClientRequest.getRawHeaderNames() (simov) #37660
ruyadorno added a commit that referenced this pull request
Mar 30, 2021
PR-URL: #37977 Notable changes: * buffer: * implement btoa and atob (James M Snell) #37529 * deps: * upgrade npm to 7.7.6 (Ruy Adorno) #37968 * doc: * add legacy status to stability index (James M Snell) #37784 * add @Linkgoron to collaborators (Nitzan Uziely) #37817 * http: * add http.ClientRequest.getRawHeaderNames() (simov) #37660
ruyadorno added a commit that referenced this pull request
Mar 31, 2021
PR-URL: #37977 Notable changes: * buffer: * implement btoa and atob (James M Snell) #37529 * deps: * upgrade npm to 7.7.6 (Ruy Adorno) #37968 * doc: * add legacy status to stability index (James M Snell) #37784 * add @Linkgoron to collaborators (Nitzan Uziely) #37817 * http: * add http.ClientRequest.getRawHeaderNames() (simov) #37660
ruyadorno added a commit that referenced this pull request
Mar 31, 2021
PR-URL: #37977 Notable changes: * buffer: * implement btoa and atob (James M Snell) #37529 * deps: * upgrade npm to 7.7.6 (Ruy Adorno) #37968 * doc: * add legacy status to stability index (James M Snell) #37784 * add @Linkgoron to collaborators (Nitzan Uziely) #37817 * http: * add http.ClientRequest.getRawHeaderNames() (simov) #37660
targos pushed a commit that referenced this pull request
May 1, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
targos pushed a commit that referenced this pull request
May 1, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> Fixes: #25099 PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
targos pushed a commit that referenced this pull request
May 1, 2021
Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #37784 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Beth Griggs <bgriggs@redhat.com>
danielleadams added a commit that referenced this pull request
May 3, 2021
Notable changes: * assert: * change status of legacy asserts (James M Snell) (#38113) * doc: * apply style for legacy status (James M Snell) (#37784) * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784) * add legacy status to stability index (James M Snell) (#37784) * upgrade stability status of report API (Gireesh Punathil) (#35654) * deps: * V8: cherry-pick cf71540c684c (BoHong Li) (#38051) * update ICU to 68.1 (Michaël Zasso) (#36187) * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360) * fs: * add promisified readFile benchmark (Nitzan Uziely) (#37608) * http: * add http.ClientRequest.getRawHeaderNames() (simov) (#37660) * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895) * lib: * create diagnostics\_channel module (Stephen Belanger) (#34895) * implement AbortSignal.abort() (James M Snell) (#37693) * test: * update dom/abort tests (James M Snell) (#37693) * util: * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request
May 3, 2021
PR-URL: #38507 Notable changes: * assert: * change status of legacy asserts (James M Snell) (#38113) * doc: * apply style for legacy status (James M Snell) (#37784) * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784) * add legacy status to stability index (James M Snell) (#37784) * upgrade stability status of report API (Gireesh Punathil) (#35654) * deps: * V8: cherry-pick cf71540c684c (BoHong Li) (#38051) * update ICU to 68.1 (Michaël Zasso) (#36187) * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360) * fs: * add promisified readFile benchmark (Nitzan Uziely) (#37608) * http: * add http.ClientRequest.getRawHeaderNames() (simov) (#37660) * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895) * lib: * create diagnostics\_channel module (Stephen Belanger) (#34895) * implement AbortSignal.abort() (James M Snell) (#37693) * test: * update dom/abort tests (James M Snell) (#37693) * util: * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request
May 3, 2021
PR-URL: #38507 Notable changes: * assert: * change status of legacy asserts (James M Snell) (#38113) * doc: * apply style for legacy status (James M Snell) (#37784) * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784) * add legacy status to stability index (James M Snell) (#37784) * upgrade stability status of report API (Gireesh Punathil) (#35654) * deps: * V8: cherry-pick cf71540c684c (BoHong Li) (#38051) * update ICU to 68.1 (Michaël Zasso) (#36187) * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360) * fs: * add promisified readFile benchmark (Nitzan Uziely) (#37608) * http: * add http.ClientRequest.getRawHeaderNames() (simov) (#37660) * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895) * lib: * create diagnostics\_channel module (Stephen Belanger) (#34895) * implement AbortSignal.abort() (James M Snell) (#37693) * test: * update dom/abort tests (James M Snell) (#37693) * util: * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request
May 4, 2021
PR-URL: #38507 Notable changes: * assert: * change status of legacy asserts (James M Snell) (#38113) * doc: * apply style for legacy status (James M Snell) (#37784) * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784) * add legacy status to stability index (James M Snell) (#37784) * upgrade stability status of report API (Gireesh Punathil) (#35654) * deps: * V8: cherry-pick cf71540c684c (BoHong Li) (#38051) * update ICU to 68.1 (Michaël Zasso) (#36187) * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360) * fs: * add promisified readFile benchmark (Nitzan Uziely) (#37608) * http: * add http.ClientRequest.getRawHeaderNames() (simov) (#37660) * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895) * lib: * create diagnostics\_channel module (Stephen Belanger) (#34895) * implement AbortSignal.abort() (James M Snell) (#37693) * test: * update dom/abort tests (James M Snell) (#37693) * util: * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request
May 7, 2021
PR-URL: #38507 Notable changes: * assert: * change status of legacy asserts (James M Snell) (#38113) * crypto: * implement randomuuid (James M Snell) (#36729) * doc: * apply style for legacy status (James M Snell) (#37784) * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784) * add legacy status to stability index (James M Snell) (#37784) * upgrade stability status of report API (Gireesh Punathil) (#35654) * deps: * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051) * update ICU to 68.1 (Michaël Zasso) (#36187) * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360) * http: * add http.ClientRequest.getRawHeaderNames() (simov) (#37660) * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895) * lib: * create diagnostics\_channel module (Stephen Belanger) (#34895) * implement AbortSignal.abort() (James M Snell) (#37693) * test: * update dom/abort tests (James M Snell) (#37693) * util: * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request
May 8, 2021
PR-URL: #38507 Notable changes: * crypto: * implement randomuuid (James M Snell) (#36729) * doc: * apply style for legacy status (James M Snell) (#37784) * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784) * add legacy status to stability index (James M Snell) (#37784) * upgrade stability status of report API (Gireesh Punathil) (#35654) * deps: * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051) * update ICU to 68.1 (Michaël Zasso) (#36187) * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360) * http: * add http.ClientRequest.getRawHeaderNames() (simov) (#37660) * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895) * lib: * create diagnostics\_channel module (Stephen Belanger) (#34895) * implement AbortSignal.abort() (James M Snell) (#37693) * test: * update dom/abort tests (James M Snell) (#37693) * util: * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request
May 10, 2021
Notable changes:
Diagnostics channel (experimental module):
`diagnostics_channel` is a new experimental module that provides an API to create named channels to report arbitrary message data for diagnostics purposes.
The module was initially introduced in Node.js v15.1.0 and is backported to v14.17.0
to enable testing it at a larger scale.
With `diagnostics_channel`, Node.js core and module authors can publish contextual data about what they are doing at a given time. This could be the hostname and query string of a mysql query, for example. Just create a named channel with `dc.channel(name)` and call `channel.publish(data)` to send the data to any listeners to that channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
MySQL.prototype.query = function query(queryString, values, callback) {
// Broadcast query information whenever a query is made
channel.publish({
query: queryString,
host: this.hostname,
});
this.doQuery(queryString, values, callback);
};
```
Channels are like one big global event emitter but are split into separate objects to ensure they get the best performance. If nothing is listening to the channel, the publishing overhead should be as close to zero as possible. Consuming channel data is as easy as using `channel.subscribe(listener)` to run a function whenever a message is published to that channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
channel.subscribe(({ query, host }) => {
console.log(`mysql query to ${host}: ${query}`);
});
```
The data captured can be used to provide context for what an app is doing at a given time. This can be used for things like augmenting tracing data, tracking network and filesystem activity, logging queries, and many other things. It's also a very useful data source for diagnostics tools to provide a clearer picture of exactly what the application is doing at a given point in the data they are presenting.
Contributed by Stephen Belanger (#34895).
UUID support in the crypto module:
The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4 UUID strings:
```js
const { randomUUID } = require('crypto');
console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```
Contributed by James M Snell (#36729.
Experimental support for `AbortController` and `AbortSignal`:
Node.js 14.17.0 adds experimental partial support for `AbortController` and `AbortSignal`.
Both constructors can be enabled globally using the `--experimental-abortcontroller` flag.
Additionally, several Node.js APIs have been updated to support `AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any spec-compliant third-party alternatives
should be compatible.
`AbortSignal` support was added to the following methods:
* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`
Other notable changes:
* doc:
* revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
* add legacy status to stability index (James M Snell) (#37784)
* upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
* V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
* update ICU to 68.1 (Michaël Zasso) (#36187)
* upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
* add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
* report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
* add getSystemErrorMap() impl (eladkeyshawn) (#38101)
PR-URL: #38507
danielleadams added a commit that referenced this pull request
May 11, 2021
Notable Changes:
Diagnostics channel (experimental module):
`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.
The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.
With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
MySQL.prototype.query = function query(queryString, values, callback) {
// Broadcast query information whenever a query is made
channel.publish({
query: queryString,
host: this.hostname,
});
this.doQuery(queryString, values, callback);
};
```
Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
channel.subscribe(({ query, host }) => {
console.log(`mysql query to ${host}: ${query}`);
});
```
The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.
Contributed by Stephen Belanger (#34895).
UUID support in the crypto module:
The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4 UUID strings:
```js
const { randomUUID } = require('crypto');
console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```
Contributed by James M Snell (#36729).
Experimental support for `AbortController` and `AbortSignal`:
Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.
Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.
Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.
`AbortSignal` support was added to the following methods:
* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`
Other notable changes:
* doc:
* revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
* add legacy status to stability index (James M Snell) (#37784)
* upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
* V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
* update ICU to 68.1 (Michaël Zasso) (#36187)
* upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
* add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
* report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
* add getSystemErrorMap() impl (eladkeyshawn) (#38101)
PR-URL: #38507
danielleadams added a commit that referenced this pull request
May 11, 2021
Notable Changes:
Diagnostics channel (experimental module):
`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.
The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.
With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
MySQL.prototype.query = function query(queryString, values, callback) {
// Broadcast query information whenever a query is made
channel.publish({
query: queryString,
host: this.hostname,
});
this.doQuery(queryString, values, callback);
};
```
Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
channel.subscribe(({ query, host }) => {
console.log(`mysql query to ${host}: ${query}`);
});
```
The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.
Contributed by Stephen Belanger (#34895).
UUID support in the crypto module:
The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4
UUID strings:
```js
const { randomUUID } = require('crypto');
console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```
Contributed by James M Snell (#36729).
Experimental support for `AbortController` and `AbortSignal`:
Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.
Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.
Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.
`AbortSignal` support was added to the following methods:
* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`
Other notable changes:
* doc:
* revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
* add legacy status to stability index (James M Snell) (#37784)
* upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
* V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
* update ICU to 68.1 (Michaël Zasso) (#36187)
* upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
* add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
* report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
* add getSystemErrorMap() impl (eladkeyshawn) (#38101)
PR-URL: #38507
danielleadams added a commit that referenced this pull request
May 11, 2021
Notable Changes:
Diagnostics channel (experimental module):
`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.
The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.
With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
MySQL.prototype.query = function query(queryString, values, callback) {
// Broadcast query information whenever a query is made
channel.publish({
query: queryString,
host: this.hostname,
});
this.doQuery(queryString, values, callback);
};
```
Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
channel.subscribe(({ query, host }) => {
console.log(`mysql query to ${host}: ${query}`);
});
```
The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.
Contributed by Stephen Belanger (#34895).
UUID support in the crypto module:
The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4
UUID strings:
```js
const { randomUUID } = require('crypto');
console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```
Contributed by James M Snell (#36729).
Experimental support for `AbortController` and `AbortSignal`:
Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.
Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.
Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.
`AbortSignal` support was added to the following methods:
* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`
Other notable changes:
* doc:
* revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
* add legacy status to stability index (James M Snell) (#37784)
* upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
* V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
* update ICU to 68.1 (Michaël Zasso) (#36187)
* upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
* add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
* report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
* add getSystemErrorMap() impl (eladkeyshawn) (#38101)
PR-URL: #38507
danielleadams added a commit that referenced this pull request
May 11, 2021
Notable Changes:
Diagnostics channel (experimental module):
`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.
The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.
With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
MySQL.prototype.query = function query(queryString, values, callback) {
// Broadcast query information whenever a query is made
channel.publish({
query: queryString,
host: this.hostname,
});
this.doQuery(queryString, values, callback);
};
```
Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.
```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');
channel.subscribe(({ query, host }) => {
console.log(`mysql query to ${host}: ${query}`);
});
```
The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.
Contributed by Stephen Belanger (#34895).
UUID support in the crypto module:
The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4
UUID strings:
```js
const { randomUUID } = require('crypto');
console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```
Contributed by James M Snell (#36729).
Experimental support for `AbortController` and `AbortSignal`:
Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.
Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.
Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.
`AbortSignal` support was added to the following methods:
* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`
Other notable changes:
* doc:
* revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
* add legacy status to stability index (James M Snell) (#37784)
* upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
* V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
* update ICU to 68.1 (Michaël Zasso) (#36187)
* upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
* add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
* report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
* add getSystemErrorMap() impl (eladkeyshawn) (#38101)
PR-URL: #38507
kt3k
mentioned this pull request
This was referenced
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