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168 lines
4.0 KiB
168 lines
4.0 KiB
# Legacy
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## Legacy Node Support
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### Node v4
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Node v4 is supported on the [Pino v4](#pino-v4-documentation) line.
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### Node v0.10-v0.12
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Node v0.10 or Node v0.12 is supported on the [Pino v2](#pino-v2-documentation) line.
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## Documentation
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### Pino v4 Documentation
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<https://github.com/pinojs/pino/tree/v4.x.x/docs>
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### Pino v3 Documentation
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<https://github.com/pinojs/pino/tree/v3.x.x/docs>
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### Pino v2 Documentation
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<https://github.com/pinojs/pino/tree/v2.x.x/docs>
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## Migration
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### Pino v4 to Pino v5
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#### Logging Destination
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In Pino v4 the destination could be set by passing a stream as the
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second parameter to the exported `pino` function. This is still the
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case in v5. However it's strongly recommended to use `pino.destination`
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which will write logs ~30% faster.
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##### v4
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```js
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const stdoutLogger = require('pino')()
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const stderrLogger = require('pino')(process.stderr)
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const fileLogger = require('pino')(fs.createWriteStream('/log/path'))
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```
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##### v5
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```js
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const stdoutLogger = require('pino')() // pino.destination by default
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const stderrLogger = require('pino')(pino.destination(2))
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const fileLogger = require('pino')(pino.destination('/log/path'))
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```
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Note: This is not a breaking change, `WritableStream` instances are still
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supported, but are slower than `pino.destination` which
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uses the high speed [`sonic-boom` ⇗](https://github.com/mcollina/sonic-boom) library.
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* See [`destination` parameter](/docs/api.md#destination)
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#### Extreme Mode
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The `extreme` setting does not exist as an option in Pino v5, instead use
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a `pino.extreme` destination.
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##### v4
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```js
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const stdoutLogger = require('pino')({extreme: true})
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const stderrLogger = require('pino')({extreme: true}, process.stderr)
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const fileLogger = require('pino')({extreme: true}, fs.createWriteStream('/log/path'))
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```
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##### v5
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```js
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const stdoutLogger = require('pino')(pino.extreme())
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const stderrLogger = require('pino')(pino.extreme(2))
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const fileLogger = require('pino')(pino.extreme('/log/path'))
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```
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* See [pino.extreme](/docs/api.md#pino-extreme)
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* See [Extreme mode ⇗](/docs/extreme.md)
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#### Pino CLI is now pino-pretty CLI
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The Pino CLI is provided with Pino v4 for basic log prettification.
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From Pino v5 the CLI is installed separately with `pino-pretty`.
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##### v4
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```sh
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$ npm install -g pino
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$ node app.js | pino
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```
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##### v5
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```sh
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$ npm install -g pino-pretty
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$ node app.js | pino-pretty
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```
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* See [Pretty Printing documentation](/docs/pretty.md)
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#### Programmatic Pretty Printing
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The [`pino.pretty()`](https://github.com/pinojs/pino/blob/v4.x.x/docs/API.md#prettyoptions)
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method has also been removed from Pino v5.
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##### v4
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```js
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var pino = require('pino')
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var pretty = pino.pretty()
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pretty.pipe(process.stdout)
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```
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##### v5
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Instead use the `prettyPrint` option (also available in v4):
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```js
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const logger = require('pino')({
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prettyPrint: process.env.NODE_ENV !== 'production'
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})
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```
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In v5 the `pretty-print` module must be installed to use the `prettyPrint` option:
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```sh
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npm install --save-dev pino-pretty
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```
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* See [prettyPrint option](/docs/api.md#prettyPrint)
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* See [Pretty Printing documentation](/docs/pretty.md)
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#### Slowtime
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In Pino v4 a `slowtime` option was supplied, which allowed for full ISO dates
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in the timestamps instead of milliseconds since the Epoch. In Pino v5 this
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has been completely removed, along with the `pino.stdTimeFunctions.slowTime`
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function. In order to achieve the equivalent in v5, a custom
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time function should be supplied:
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##### v4
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```js
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const pino = require('pino')
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const logger = pino({slowtime: true})
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// following avoids deprecation warning in v4:
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const loggerAlt = pino({timestamp: pino.stdTimeFunctions.slowTime})
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```
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##### v5
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```js
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const logger = require('pino')({
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timestamp: () => ',"time":"' + (new Date()).toISOString() + '"'
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})
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```
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The practice of creating ISO dates in-process for logging purposes is strongly
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recommended against. Instead consider post-processing the logs or using a transport
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to convert the timestamps.
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* See [timestamp option](/docs/api.md#timestamp)
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