Refactor version 8 code without using the version 9 compat libraries. Your ultimate goal is to remove compat codeĪnd keep only version 9 modular-style code in your app.įor apps with a very small exposure to the Firebase Web SDK – for example, anĪpp that makes only a simple call to the Authentication APIs – it may be practical to Solution that will be removed completely in a future major SDK version (suchĪs version 10 or version 11). Keep in mind: the compat libraries are a temporary This means youĬan compile and debug your app more easily as you work through the upgrade Using version 8 code alongside code refactored for version 9. This guide assumes that you will take advantage of the version 9 compat Compat libraries have little toĪdvantages over their version 8 counterparts. Version 8 SDK, allowing you to upgrade to version 9 without changing all Compat - a familiar API surface which is fully compatible with the.Make your web app as small and fast as possible. Modular - a new API surface designed to facilitate tree-shaking.There are two types of libraries available for Firebase Web SDK version 9:

By working through the examples, youĬan master the concepts and practical steps required to upgrade all supportedįirebase Web SDKs. Uses the Authentication and Cloud Firestore SDKs. The upgrade steps in this guide will be based around an imaginary web app that Version 9's main benefits in reduced app size. If you don't use one, you won't be able to take advantage of

Using a module bundler in your development environment is strongly That you are familiar with version 8 and that you will take advantage of a Migrating to version 9 using the instructions in this guide. Connect to the Cloud Functions emulatorĪpps currently using Firebase Web SDK version 8 or earlier should consider.

Connect to the Cloud Storage for Firebase emulator.Connect to the Realtime Database emulator.

Npm upgrade