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README.md
Realm is a mobile database that runs directly inside phones, tablets or wearables. This project hosts the JavaScript versions of Realm. Currently we only support React Native (both iOS & Android) and Node.js (on MacOS and Linux) but we are considering adding support for Cordova/PhoneGap/Ionic as well.
Features
- Mobile-first: Realm is the first database built from the ground up to run directly inside phones, tablets and wearables.
- Simple: Data is directly exposed as objects and queryable by code, removing the need for ORM's riddled with performance & maintenance issues.
- Modern: Realm supports relationships, generics, and vectorization.
- Fast: Realm is faster than even raw SQLite on common operations, while maintaining an extremely rich feature set.
Getting Started
Please see the detailed instructions in our docs to use Realm Javascript.
Documentation
Realm React Native and Node.js
The documentation can be found at realm.io/docs/javascript/latest.
The API reference is located at realm.io/docs/javscript/latest/api.
Getting Help
- Need help with your code?: Look for previous questions on the #realm tag — or ask a new question. We actively monitor and answer questions on SO!
- Have a bug to report? Open an issue. If possible, include the version of Realm, a full log, the Realm file, and a project that shows the issue.
- Have a feature request? Open an issue. Tell us what the feature should do, and why you want the feature.
- Sign up for our Community Newsletter to get regular tips, learn about other use-cases and get alerted of blog posts and tutorials about Realm.
Building Realm
In case you don't want to use the precompiled version on npm, you can build Realm yourself from source. You’ll need an Internet connection the first time you build in order to download the core library.
Prerequisites:
- Node 4.0+
- Xcode 7.2+
- Android SDK 23+
- Android NDK 10e+
First clone this repository:
git clone https://github.com/realm/realm-js.git
Then in the cloned directory:
git submodule update --init --recursive
To build for iOS:
- Open
react-native/ios/RealmReact.xcodeproj - Select
RealmReact.frameworkas the build target - Build
To build for Android:
cd react-native/android./gradlew publishAndroid- The compiled version of the Android module is here:
<project-root>/android
To build for nodejs:
npm install --build-from-souce
-
On Windows you will need to setup the environment for node-gyp
-
Option 1: Install windows-build-tools node package
-
Open an elevated command prompt (As Administrator)
npm install -g --production windows-build-tools
-
-
Option 2: Manually install and configure
- Check node-gyp manual for custom installation procedure for Windows
-
Running the tests
You can use scripts/tests.sh to run the various tests. You will need yarn installed on the machine.
test.sh options
- eslint - lints the sources
- realmjs - runs all tests on quick simulated environment
- react-tests - runs all React Native tests on iOS Simulator
- react-tests-android runs all React Native Android tests on Android emulator
- node - runs all tests for node
- node-nosync - runs all tests for node without sync support
- test-runners - checks supported tests runners are working correctly
You can attach a debugger to react-native tests by passing "Debug" to the tests.sh script. A Chrome browser will open and connect to the react native application. Use the built-in Chrome Debugger to debug the code.
./tests.sh react-tests Debug
Code of Conduct
This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to info@realm.io.
Contributing
See CONTRIBUTING.md for more details!
License
Realm JS is published under the Apache 2.0 license. The underlying core is available under the Realm Core Binary License while we work to open-source it under the Apache 2.0 license.
This product is not being made available to any person located in Cuba, Iran, North Korea, Sudan, Syria or the Crimea region, or to any other person that is not eligible to receive the product under U.S. law.
Feedback
If you use Realm and are happy with it, all we ask is that you please consider sending out a tweet mentioning @realm, or email help@realm.io about your great apps!
And if you don't like it, please let us know what you would like improved, so we can fix it!