Build a Netflix-like app for browsing movies from MongoDB’s Mflix sample dataset. Use multiple realms to allow registered users to sync and manage movies in their own private list. As per my experience, it totally depends upon the application requirements. A key-value react native storage is default option for a number of server-side and client-side scripting languages.

I built upon this template example to create an application that allowed me to perform CRUD operations to add, view, update, and delete movies from a list. I also wanted to incorporate navigation between screens using React Native Navigation. Realm is a mobile-first database that is object-oriented and intended for use in cross-platform and mobile applications. In case of React Native, there are multiple databases, some of which are – Realm, Firebase, SQLite, etc. If you take more than 20 lines of code to write a simple CRUD operations, any advanced database should be your last choice. Because, not only an advanced DB would make coding complicated but it would even affect the database performance heavily and the overall React Native app development cost.

In the case of Server-Side databases

SQLite is a relational database management system developed as a storage solution for mobile applications. The word “lite” refers to SQLite being a lightweight library version of a database with minimal setup required. SQLite can be integrated with mobile apps to directly access and perform database operations. The Realm is an object-oriented and open-source database that operates 10 times quicker than that of the relational database. Moreover, it supports complicated data types for real-time and offline apps.

Its structures and design got inspiration from different open-source databases. This was originally built to offer users the capacity of making local storage databases for mobile apps. In the name, ‘Lite’ stands for the database’s lightweight, which needs a minimal setup. It executes maximum SQL policies with extra tools that help you manage the data easily.

Adding React Native Navigation

The more collaboration related features you add inside your application, the more would be the possibility of data conflicts. MySQL is designed to store large amounts of data and over react native development 100 million records. It also has the capability to support up to 64 indexes per table in the database. Each of the table’s indexes may incorporate anywhere between 1 and 16 columns.

To have offline-first functionality when the app is launched and there is no connection, you will need to add redux-persist to your app. This enables it to store a snapshot of the state of your app to the device’s memory and rehydrate the state when the app is launched. Using offline-first in your mobile app means users get the same responsive UI whether they have a 3G, 4G, 5G, or no connection at all. Instead of creating a screen similar to the View, Delete, and Add screens we built to manipulate realm data, I used MongoDB’s Realm Studio v 13.0 to more easily manage my Realm database. Opening existing realms and adding and modifying data in them becomes a lot simpler with a GUI-based tool.

Read Operations

You can simply pass a JavaScript object that partially describes the search target, and MongoDB will return the value. All values must be serialized before storage and deserialized during retrieval. This explains Async Storage’s slow runtime and lack of support for indexing capabilities. You should not use Async Storage when dealing with large amounts of data. SQLite supports data encryption with an extension named SQLite Encryption Extension (SEE), which is provided on their official website.

If you are starting an app from scratch, any of these options may work for you. There are several ways to implement offline-first and, depending on the structure of your app, some methods will work without having to change the app’s architecture, while others won’t. In this article, we’ll cover five ways to implement an offline-first app in React Native.

The RealmProvider provides your main component and its children access to the configured Realm through the inbuilt Hooks useRealm(), useObject(), and useQuery(). By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. In a MySQL/PHP application, the results of the SQL query will return in less than 2 seconds. It depends entirely on your app type, the complexity you are opting for and the budget you have set. Inefficient database memory handling practices can lead to app crashes.

• Realm as local database works well in every possible requirement where SQLite and Core Data fail to the same level of performance, security, and scalability.
• MySQL is made secure with a password-based encryption system that implements several data layers for security.
• If you’re encountering an error or otherwise having issues,
  it’s likely an issue with how your local environment is set up.
• This will let us organize to-dos by how important they
  are and allow us to focus only on the most important ones.
• But for large-scale and enterprise applications, you should consider Realm or SQLite.

In this blog, I have compiled a list of databases for react native app development. They might match your needs like scaling easily with your user base or supporting offline development capacities. There is a huge pressure on a React Native developer to deliver offline-first and high performing application that can be scaled whenever needed. Thus, it’s often challenging for developer to choose the right technology stack including the appropriate database for React Native. In this article, we have handpicked everything you need to know in order to select the right database for React Native. It is one of the most lightweight, fast, and open-source databases for app development using react native.

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