Using Firebase With React Context

Now head on over to the project settings, and select “Config” under “Firebase SDK snippet”. Take a note of these values because we will need them soon.

Next, create a react app and install firebase from npm

We will be wrapping the Firebase library in a class that will give access to only the functions that are needed. This class will also perform initialization with the config variables when it is instantiated. In this example, I will only be using the Realtime Database function, however, the process to use other functionality such as Auth or Cloud Firestore is as simple as adding another line to the class.

The useFirebase hook provides an easy way to grab the value of the nearest FirebaseContext provider. If there is no context provider where the hook is used, this will throw so that issues are caught early.

With the context defined, it can now be used within the react application. In App.js:

In this simple example, it’s easy to see the benefit of using the context. Each child component can simply just pull the Firebase instance from the context provider instead of having it get drilled down.

Cheers

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