![]() He spends multiple paragraphs on how it works for IOS, then hides a single sentence or two in there on what to do for Android. ![]() This is the part that made me mad on the official docs: explanation of where to put your database. ![]() Once you do that, you can use the tool to create and write your database file. Next, assuming you don’t want to be Super Manly Programmer ™ and write your own SQL script (using VI), install DB Broswer for SQLite: Use whatever utility you want, or write a SQL script by hand to create your database. Step 1: Create A SQLIte Databaseĭon’t attempt to have your app create a database from scratch. If you were expecting me to walk you through that part, this ain’t that kind of tutorial, bro. This all assumes you have a react-native project set up. (Insert introduction blah blah blah here) I’ve modified the section below on opening databases. If you are working on Android, you can learn more in the issues section and in the test directory than you can in the README.md. There a different project out there that can be used, but I would recommend to use the react-native-quick-sqlite project.įirst you have to install the library into your React Native project via npm install react-native-quick-sqlite.Edit: the docs on react-native-sqlite-storage suck. To use SQLite in React Native, you first have to include the SQLite library itself as a plugin. Operations are written in the SQL query language and SQLite generally follows the PostgreSQL syntax. SQLite is a SQL based relational database written in C that was crafted to be embed inside of applications. Complex queries or features are not supported which makes AsyncStorage not suitable for anything more then storing simple user settings data. There is a community fork of AsyncStorage that is actively maintained and open source.ĪsyncStorage is fine when only a small amount of data needs to be stored and when no query capabilities besides the key-access are required. But it was deprecated by the React Native Team which recommends to use a community based package instead. * you have to 'await' the call to getItem()Ĭonst value = await AsyncStorage.getItem( 'myKey') ĪsyncStorage was originally included in React Native itself. This is a big benefit because long running writes and reads will not block your JavaScript process which would cause a laggy user interface. The big difference is that access to the AsyncStorage is not a blocking operation but instead everything is Promise based. AsyncStorageĪsyncStorage is a key->value storage solution that works similar to the browsers localstorage API. While I would recommend to use RxDB for most use cases, it is still helpful to learn about other alternatives. There are multiple database solutions that can be used with React Native. NOTICE: You are reading this inside of the RxDB documentation, so everything might be opinionated. Instead a different storage solution must be chosen that does not come directly with React Native itself but has to be installed as a library or plugin. In difference to the JavaScript runtime of browsers, React Native does not support all HTML5 APIs and so it is not possible to use browser storage possibilities like localstorage, cookies, WebSQL or IndexedDB. Mostly it is used to create hybrid Apps that run on mobile devices at Android (google) and iOS (apple). React Native provides a cross-platform JavaScript runtime that runs on different operating systems like Android, iOS, Windows and others. ![]()
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