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48 lines
1.3 KiB
48 lines
1.3 KiB
2 years ago
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# jest-serializer
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Module for serializing and deserializing object into memory and disk. By default, the `v8` implementations are used, but if not present, it defaults to `JSON` implementation. Both serializers have the advantage of being able to serialize `Map`, `Set`, `undefined`, `NaN`, etc, although the JSON one does it through a replacer/reviver.
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## Install
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```sh
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$ yarn add jest-serializer
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```
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## API
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Three kinds of API groups are exposed:
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### In-memory serialization: `serialize` and `deserialize`
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This set of functions take or return a `Buffer`. All the process happens in memory. This is useful when willing to transfer over HTTP, TCP or via UNIX pipes.
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```javascript
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import {deserialize, serialize} from 'jest-serializer';
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const myObject = {
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foo: 'bar',
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baz: [0, true, '2', [], {}],
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};
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const buffer = serialize(myObject);
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const myCopyObject = deserialize(buffer);
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```
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### Synchronous persistent filesystem: `readFileSync` and `writeFileSync`
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This set of functions allow to send to disk a serialization result and retrieve it back, in a synchronous way. It mimics the `fs` API so it looks familiar.
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```javascript
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import {readFileSync, writeFileSync} from 'jest-serializer';
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const myObject = {
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foo: 'bar',
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baz: [0, true, '2', [], {}],
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};
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const myFile = '/tmp/obj';
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writeFileSync(myFile, myObject);
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const myCopyObject = readFileSync(myFile);
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```
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