![]() Links are provided where the assumption of this knowledge has been made so you can go and read for further context if you want to. Note: This article relies on some knowledge of how http requests and responses work. We are going to look at the characteristics of WebSockets, what they do, how to test them and investigate the art of the possible with automation for functional and non-functional checking. RTK Query is included within the installation of the core Redux Toolkit package.In a series of posts which will span the research of myself and my colleague Herb Williams, we will talk about our conclusions and general messing about with tools to test WebSockets. The functionality included in RTK Query quickly pays for the added bundle size, and the elimination of hand-written data fetching logic should be a net improvement in size for most meaningful applications. With React: 19kB + React-Redux, which is a peer dependencyĪdding additional endpoint definitions should only increase size based on the actual code inside the endpoints definitions, which will typically be just a few bytes.Without React: 17 kB for RTK+dependencies+RTK Query.If you are using RTK already: ~9kb for RTK Query and ~2kb for the hooks.Since RTK Query builds on top of Redux Toolkit and React-Redux, the added size varies depending on whether you are already using those in your app. RTK Query adds a fixed one-time amount to your app's bundle size. setupListeners(): A utility used to enable refetchOnMount and refetchOnReconnect behaviors.: Can be used as a Provider if you do not already have a Redux store.Intended as the recommended baseQuery to be used in createApi for the majority of users. fetchBaseQuery(): A small wrapper around fetch that aims to simplify requests.In most cases, you should use this once per app, with "one API slice per base URL" as a rule of thumb. It allows you to define a set of "endpoints" that describe how to retrieve data from backend APIs and other async sources, including the configuration of how to fetch and transform that data. createApi(): The core of RTK Query's functionality.It is available via either of the two entry points below: RTK Query is included within the installation of the core Redux Toolkit package. Finally, RTK Query is completely written in TypeScript, and is designed to provide an excellent TS usage experience.We have early working examples of code generation of API slices from OpenAPI and GraphQL schemas.RTK Query provides "cache entry lifecycle" options that enable use cases like streaming cache updates via websocket messages after fetching the initial data. ![]()
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