Then we use that instance to create an instance of FirebaseDatabase by passing the app instance along with the Database URL from the Configurations file. We have defined a handler for the GET request on the endpoint /all, which will return all the data stored in the Realtime DB.įirst, we initialize and get the FirebaseApp from the initApp() method. For that, first write the following code inside the handler method : Now, let's write a POST handler for registering new users. So, what we do is we use a try-catch block to determine if the app is already initialized, if so, go with that initialized app, or else, initialize a new app with the given credentials stored in the Configuration file. The codebase will re-run the same initialize step irrespective of the app already initialized or not which will lead to the exception : " A Firebase App named "" already exists". Now, there is a conflict of interest here. But, Firebase is quite quirky, it does remember whether its app was already initialized or not. Due to which, the code wont remember if we had already initialized the firebase app or not. So, what happens in Web APIs is that, every time you hit the API endpoint, the entire code is re-run again and no state is maintained between the calls. Now, let me give you a brief insight on APIs. In 2021-Dec (21st Century), the versions were the ones given below :Įnter fullscreen mode Exit fullscreen modeįirst, we create a new instance for FirebaseApp. The versions may change depending on which century you are reading this article. So, the dependencies goes like this inside pubspec.yaml. The mastermind which is gonna help us play with Firebase using pure Dart. We will be building on top of that.īut, before we start coding, let's import some packages : Once the project is created, you will be given the template code, which you don’t have to delete. Name the project after your pet doggo, or 'test-server' will also do. So i will create a New Dart Project (web-server) : So first things first.Let's create a new Dart-server application. But, when working with Dart application, you dont have to create any new apps!. When working with Flutter, you have to create separate apps in your Firebase console for Android and iOS. Note: Don't confuse this article on connecting your Firebase account to your Flutter code. Realtime Database for CRUDing data using Dart-built APIs. Login and Sign-up of new users using Firebase Authentication.In this article, i will explain how you can connect your Firebase account with your Dart application and use its features like :
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