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simple-json-db
Advanced tools
A simple, no-frills, JSON key-value storage engine for Node.JS with full test coverage.
npm install simple-json-db
const JSONdb = require('simple-json-db');
const db = new JSONdb('/path/to/your/storage.json');
The prototype of the constructor is new JSONdb(string, [object])
, and you can supply the optional options
object by giving it as second parameter:
const db = new JSONdb('/path/to/your/storage.json', { ... });
See the Options section for more details.
All keys are optional and will default to a safe value.
Key | Value type | Description | Default value |
---|---|---|---|
asyncWrite | Boolean | Enables the storage to be asynchronously written to disk. | false (synchronous behaviour) |
syncOnWrite | Boolean | Makes the storage be written to disk after every modification. | true |
jsonSpaces | Number | The number of spaces used for indentation in the output JSON. | 4 |
stringify | Function(object) => string | A stringifier function to serialize JS objects into JSON strings. | JSON.stringify |
parse | Function(string) => object | A parser function to deserialize JSON strings into JS objects. | JSON.parse |
db.set('key', 'value');
The key
parameter must be a string, value
can be whatever kind of object can be stored in JSON format. JSON.stringify()
is your friend!
db.get('key');
The key
parameter must be a string. If the key exists its value is returned, if it doesn't the function returns undefined
.
db.has('key');
The key
parameter must be a string. If the key exists true
is returned, if it doesn't the function returns false
.
db.delete('key');
The key
parameter must be a string. The function returns as per the delete operator if the key exists, else it returns undefined
.
db.sync();
This function writes the JSON storage object to the file path specified as the parameter of the main constructor. Consult the Options section for usage details; on default options there is no need to manually invoke it.
db.JSON();
This will return a copy of the internal JSON storage object, for you to tinker with and loop over.
db.JSON({ data });
Giving a parameter to the JSON
function makes the object passed replace the internal one. Be careful, as there's no way to recover the old object if the changes have already been written to disk.
Run npm ci
to install the testing dependencies and npm test
to start the test suite.
FAQs
A simple, no-frills, JSON storage engine for Node.JS
The npm package simple-json-db receives a total of 1,328 weekly downloads. As such, simple-json-db popularity was classified as popular.
We found that simple-json-db demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
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