# SignalDB SignalDB is a client-side database optimized for modern web applications. It provides an optimistic UI for creating responsive and dynamic interfaces, a MongoDB-like interface for familiarity, and robust TypeScript support to ensure type safety and accelerate development. SignalDB enables versatile local data persistence with support for various storage providers and facilitates real-time updates by gathering and synchronizing data from multiple sources. Its framework-agnostic design makes it suitable for projects of any scale, offering instant data access with minimal latency, which is ideal for applications requiring fast data handling and real-time interactions. Adapters are available for popular reactive libraries, including [Angular](https://signaldb.js.org/guides/angular/), [React](https://signaldb.js.org/guides/react/), [Solid](https://signaldb.js.org/guides/solid-js/), [Svelte](https://signaldb.js.org/guides/svelte/) and [Vue.js](https://signaldb.js.org/guides/vue/). ## Installation ```` $ npm install @signaldb/core ```` ## Usage ```js import { Collection } from '@signaldb/core' const Posts = new Collection() const postId = Posts.insert({ title: 'Foo', text: 'Lorem ipsum …' }) Posts.updateOne({ id: postId }, { // updates the post $set: { title: 'New title', } }) Posts.removeOne({ id: postId }) // removes the post const cursor = collection.find({}) // returns an array with all documents in the collection // reruns automatically in a reactive context console.log(cursor.fetch()) ``` See the [documentation](https://signaldb.js.org/) for more information. ## License Licensed under MIT license. Copyright (c) 2024 Max Nowack ## Contributions Contributions are welcome. Please open issues and/or file Pull Requests. See [Contributing.md](https://github.com/maxnowack/signaldb/blob/main/CONTRIBUTING.md) to get started. ## Troubleshooting If you encounter any issues, there are several ways to get support. - Join our [Discord server](https://discord.gg/qMvXKXxBTp). - [Start a discussion](https://github.com/maxnowack/signaldb/discussions/new/choose) - [Open an issue](https://github.com/maxnowack/signaldb/issues/new)