RSQL Filter builder

Rslq-filter is a library to build RSQL query string in typescript.

Getting started

Install rsql filter builder

``
npm i rsql-filter-builder
`

Usage

`ts
import { RSQLFilter } from "rsql-filter-builder";


search() {
const filter: string = RSQLFilter.new().equals('name','jhon').and().lessThan('age', 50).value();
}

//nested operation

search() {
const filter: string = RSQLFilter.new().equals('name','jhon').and(
RSQLFilter.new().gratherTan('age', 10).or().lessTahn('age',50).value()
).value();
}
`

Shortcuts

It is possibile to use a less verbose operator:

`ts

search() {

const filter: string = RSQLFilter.new()
.equals('name','jhon')
.andLessThan('age', 50)
.orLikeAll('lastName', 'Gle')
.value();

}


`

Iterate

It is possibile to iterate a specific condition:

`ts

import { RSQLFilter, Operator } from "rsql-filter-builder";

search() {

const valueSplit = value?.split(' ');
const filter = RSQLFilter.new()
.iterate({
valueList: valueSplit,
operation: userSearch,
operator: Operator.OR
})

};


const userSearch = (val: any) => {
return RSQLFilter.new()
.equals('name','jhon')
.andLessThan('age', 50)
.orLikeAll('lastName', 'Gle')
.value();
};


`

Extending RSQL builder

`ts

export class Filter extends RSQLFilter {


//New operation
exist(prop: string, value: any) {
return this.operation(prop, value, '=ex=')
}


}


``