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# rollun-ts-datastore
Basically [rollun-datastore](https://github.com/rollun-com/rollun-datastore),
but in TS. For now contains only HTTP Datastore.
Supports either Node and Browser environment.
Datastore clients use fetch and node-fetch for http requests.

## Installation
preferred way to install this library is via npm. Run
```
npm install rollun-ts-datastore
```
or add
```
"rollun-ts-datastore": "*",
```
to the dependencies section of your package.json

## Important to know

To query data from ```client.query()``` method from datastore, you need
to use query object from 
[rollun-ts-rql](https://www.npmjs.com/package/rollun-ts-rql) library.

## Basic usage
```js
import HttpDatastore from "rollun-ts-datastore/dist/HttpDatastore";
import {Query, And, Le, Ge} from "rollun-ts-rql";

// keep in mind, using HttpDatastore server side (node.js), 
// You MUST spesify absolute path to your api
const datastore = new HttpDatastore('my/users/datastore');

const newItem = {id: '123', name: 'Alex', age: 23};
//add item to store
datastore
    .create(newItem)
    .then((item) => {
        console.log(item);
        // will log newly created item
        // useful when using autogenerated IDs
    });

//read item from store
datastore
    .read('123')
    .then((item) => {
        // do something with item
        // ...
    })
    .catch((error) => {
        console.warn('an error occurred while reading from datastore', error)
    });

//update item (by id)
datastore
    .update({id: '123', age: 24})
    .then((item) => {
        console.log(item);
        // will log updated item;
    });

//delete item
datastore
    .delete('123')
    .then((item) => {
        console.log(item);
        // will log deleted item;
    });

//get items for query
const query = new Query({
    query: new And([
        new Le('age', 25),
        new Ge('age', 18),
    ])
});

datastore
    .query(query)
    .then((items) => {
        //do something with result
        //...
    })
    .catch((error) => {
        console.warn(error)
    });
```