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108 lines
3.6 KiB
108 lines
3.6 KiB
# pino-std-serializers [](https://travis-ci.org/pinojs/pino-std-serializers)
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This module provides a set of standard object serializers for the
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[Pino](https://getpino.io) logger.
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## Serializers
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### `exports.err(error)`
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Serializes an `Error` like object. Returns an object:
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```js
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{
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type: 'string', // The name of the object's constructor.
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message: 'string', // The supplied error message.
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stack: 'string', // The stack when the error was generated.
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raw: Error // Non-enumerable, i.e. will not be in the output, original
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// Error object. This is available for subsequent serializers
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// to use.
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}
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```
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Any other extra properties, e.g. `statusCode`, that have been attached to the
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object will also be present on the serialized object.
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### `exports.mapHttpResponse(response)`
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Used internally by Pino for general response logging. Returns an object:
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```js
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{
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res: {}
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}
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```
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Where `res` is the `response` as serialized by the standard response serializer.
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### `exports.mapHttpRequest(request)`
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Used internall by Pino for general request logging. Returns an object:
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```js
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{
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req: {}
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}
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```
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Where `req` is the `request` as serialized by the standard request serializer.
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### `exports.req(request)`
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The default `request` serializer. Returns and object:
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```js
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{
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id: 'string', // Defaults to `undefined`, unless there is an `id` property
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// already attached to the `request` object or to the `request.info`
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// object. Attach a synchronous function
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// to the `request.id` that returns an identifier to have
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// the value filled.
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method: 'string',
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url: 'string', // the request pathname (as per req.url in core HTTP)
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headers: Object, // a reference to the `headers` object from the request
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// (as per req.headers in core HTTP)
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remoteAddress: 'string',
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remotePort: Number,
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raw: Object // Non-enumerable, i.e. will not be in the output, original
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// request object. This is available for subsequent serializers
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// to use. In cases where the `request` input already has
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// a `raw` property this will replace the original `request.raw`
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// property
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}
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```
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### `exports.res(response)`
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The default `response` serializer. Returns an object:
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```js
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{
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statusCode: Number,
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headers: Object, // The headers to be sent in the response.
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raw: Object // Non-enumerable, i.e. will not be in the output, original
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// response object. This is available for subsequent serializers
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// to use.
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}
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```
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### `exports.wrapErrorSerializer(customSerializer)`
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A utility method for wrapping the default error serializer. This allows
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custom serializers to work with the already serialized object.
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The `customSerializer` accepts one parameter — the newly serialized error
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object — and returns the new (or updated) error object.
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### `exports.wrapRequestSerializer(customSerializer)`
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A utility method for wrapping the default request serializer. This allows
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custom serializers to work with the already serialized object.
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The `customSerializer` accepts one parameter — the newly serialized request
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object — and returns the new (or updated) request object.
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### `exports.wrapResponseSerializer(customSerializer)`
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A utility method for wrapping the default response serializer. This allows
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custom serializers to work with the already serialized object.
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The `customSerializer` accepts one parameter — the newly serialized response
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object — and returns the new (or updated) response object.
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## License
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MIT License
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