State management is a great solution for many WordPress developers who want to stay in control of their site. In this blog post, we are going to tell you all about state management in WordPress and the use of Redux so make sure to keep reading if you’d like to find out more.
In order to help you understand what state management is, we are going to discuss some basic concepts. The first thing we are going to talk you through is reducers. When you are using Redux, the reducer functions manage the state. You might find that the reducers can take some inputs and reduce them to a single value. The reducer that you’ll find in Redux uses the current state and brings it back in the new state.
When making use of a reducer, we tend to use one for the whole collection of data and then we specify actions for it to act on. When you are using Redux, you call this actions as Redux sends them to the right reducer.
When you are using a reducer, you will be taking actions to reduce the data. In order for this to be successful, the object must be the same shape and structure when you are dispatching the action. In order to complete this, we have to make sure that an action creator function has been added. If you are planning on changing the shape, you need to make sure that the reducer and the action have been changed because these things are strongly coupled.
Once the actions have been performed and the reducers have changed the state, we need to have something which gets the data out of state and into our API requests or tests. This is why we use selectors to take the right data and bring it out in the right form from state. If you are planning on adding selectors to an app, you will need to have a library like reselect or WordPress’s data module.
The concepts that have been shown so far use pure functions, however, these have to be synchronous. If you are using Redux, you should know that middlewares are used for asynchronous actions. In order to do this, you should find the WordPress data store where you can add a resolver. This function can be asynchronous, and you will find that it can be called when a selector is called on for the first time. This selector must be of the same name.
Now that you know about the basic concepts of state management, you should be able to work on your WordPress site and understand this process a lot more. Make sure to find out more about actions, selectors, resolvers and of course reducers. We recommend that you use Redux if you are using WordPress and want to manage your state effectively.