@push.rocks/webstore

High performance storage in the browser using IndexedDB.

Install

To install @push.rocks/webstore, use the following npm command:

npm install @push.rocks/webstore --save

This will add it to your project's dependencies.

Usage

The @push.rocks/webstore module provides a high-performance storage solution for web applications, leveraging IndexedDB. This guide demonstrates how to use @push.rocks/webstore to store, retrieve, check, and manage data in the browser efficiently.

Basic Setup

Before using @push.rocks/webstore, you must import and instantiate a WebStore class. Specify a database name (dbName) and a store name (storeName) in the options:

import { WebStore } from '@push.rocks/webstore';

const myStore = new WebStore<{
  [key: string]: any; // Define the shape of your store objects here
}>({
  dbName: 'myDatabase',
  storeName: 'myStore'
});

Initialization

To ensure that IndexedDB is set up correctly, call the init method before executing any CRUD operations:

await myStore.init();

Storing Data

To store data, use the set method with a key and value. The value can be any object adhering to the store's object shape:

await myStore.set('myKey', { some: 'data' });

Retrieving Data

To retrieve data, use the get method with a key. This method returns a promise that resolves to the value associated with the key, or undefined if the key does not exist:

const myData = await myStore.get('myKey');
console.log(myData); // { some: 'data' }

Checking Data Existence

To check whether a key exists in the store, use the check method:

const exists = await myStore.check('myKey');
console.log(exists); // true or false

Deleting Data

To delete a specific entry, use the delete method with a key:

await myStore.delete('myKey');

Clearing the Store

To remove all entries from the store, use the clear method:

await myStore.clear();

Fetching All Keys

To retrieve all keys from the store, use the keys method. It returns a promise that resolves to an array of keys:

const allKeys = await myStore.keys();
console.log(allKeys); // ['myKey', ...]

Error Handling

One of the strengths of WebStore is its built-in error handling using smartpromise. All the asynchronous operations (init, get, set, delete, clear, keys) inherently handle errors gracefully by catching them and allowing you to handle them with standard JavaScript try-catch or using .catch on the promises.

Error Handling Example

In TypeScript, you can write try-catch blocks to handle errors:

try {
  await myStore.set('myKey', { some: 'data' });
} catch (error) {
  console.error('Error storing data:', error);
}

try {
  const myData = await myStore.get('myKey');
  console.log(myData);
} catch (error) {
  console.error('Error retrieving data:', error);
}

Advanced Features: Typed Request Caching

@push.rocks/webstore also includes a feature for caching typed requests using the TypedrequestCache class. This is particularly useful for caching API requests and their responses.

Setting Up a Typed Request Cache

To set up a TypedrequestCache:

import { TypedrequestCache } from '@push.rocks/webstore';

const myCache = new TypedrequestCache('domainIdentifier');

Storing a Request and Its Response

Store a request and its response:

await myCache.setByRequest({
  method: 'GET',
  request: 'https://example.com/api/data',
  response: { data: 'response data' }
});

Retrieving a Cached Request

Retrieve a cached request by making a partial request:

const cachedResponse = await myCache.getByRequest({
  method: 'GET',
  request: 'https://example.com/api/data'
});
console.log(cachedResponse); // { data: 'response data' }

Comprehensive Usage Example

Here is a comprehensive example that covers initialization, data manipulation, and error handling:

import { WebStore, TypedrequestCache } from '@push.rocks/webstore';

async function main() {
  const myStore = new WebStore<{
    [key: string]: any;
  }>({
    dbName: 'myDatabase',
    storeName: 'myStore',
  });

  try {
    await myStore.init();

    // Set data
    await myStore.set('myKey', { some: 'data' });
    console.log('Data set successfully.');

    // Get data
    const myData = await myStore.get('myKey');
    console.log('Retrieved data:', myData); // { some: 'data' }

    // Check data existence
    const exists = await myStore.check('myKey');
    console.log('Key exists:', exists); // true

    // Delete data
    await myStore.delete('myKey');
    console.log('Data deleted.');

    // Clear store
    await myStore.clear();
    console.log('Store cleared.');

    // Fetch all keys
    const allKeys = await myStore.keys();
    console.log('All keys:', allKeys); // []

  } catch (error) {
    console.error('Error during storage operations:', error);
  }

  // Typed Request Caching
  const myCache = new TypedrequestCache('exampleDomain');

  try {
    await myCache.setByRequest({
      method: 'GET',
      request: 'https://example.com/api/data',
      response: { data: 'response data' }
    });
    console.log('Typed request cached.');

    const cachedResponse = await myCache.getByRequest({
      method: 'GET',
      request: 'https://example.com/api/data'
    });
    console.log('Cached response:', cachedResponse); // { data: 'response data' }
  } catch (error) {
    console.error('Error during typed request caching operations:', error);
  }
}

main().catch(console.error);

Conclusion

The @push.rocks/webstore package provides a flexible and efficient way to handle browser storage and caching. With features like error handling, typed request caching, and easy-to-use APIs, it can significantly improve performance and maintainability in web applications. For further exploration, feel free to explore the source code and tests provided in the repository.

License and Legal Information

This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the license file within this repository.

Please note: The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.

Trademarks

This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.

Company Information

Task Venture Capital GmbH
Registered at District court Bremen HRB 35230 HB, Germany

For any legal inquiries or if you require further information, please contact us via email at [email protected].

By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.