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Narrator: So, we've got a slightly better idea

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of how middlewares work in Redux now.

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They are sitting in between

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our action creators and our reducers,

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and they intercept any actions.

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Once an action flows into a middleware,

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the middleware can choose to console log it,

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it can delete it,

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it can stop it in its tracks,

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it can modify it.

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Basically, anything we really want to do,

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we can do inside of a middleware.

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And, as we work through this example,

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we'll see some of the different conditions

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or situations where we might want to

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take all these different sorts of actions.

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One other thing that we did in the last section

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was we installed our boilerplate package.

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We also installed our dependencies,

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just to make sure that everything is installed

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and running A-okay,

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I'm gonna start up my development server

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with "npm run start",

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and then let's flip over to the browser,

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and I'm just gonna verify

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that everything is showing up properly.

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And, there we go.

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React simple starter at the top.

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Very good.

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All right, let's spend some time

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to talk a little bit more

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about the app that we're going to be building,

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and specifically, how we're gonna be building it.

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So, first thing I'm gonna pull

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onto the screen is a mock-up of the app

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that we're going to build.

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So, it's gonna be pretty simple,

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pretty straightforward.

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Again, the real goal here is not to

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build an interesting app so much

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as it is to figure out how middleware works.

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So, our app is gonna be very straightforward.

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We're gonna make an AJAX request

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to load up a list of users,

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and then we're gonna show one badge

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or profile component per user.

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And, on each of these profiles,

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we should have the user's name,

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which, in this case,

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I just called the user,

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their company name,

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so, what company they represent,

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and, a very simple button that's just going to

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allow us to click it and open

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our favorite email editor or email client

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and send an email to that very particular user.

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So again, the goal here is not so much to

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work on the React side of things.

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The, the goal here is to work on the Redux side

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of things and figure out more about middleware.

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So, on that topic, let's talk more

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about exactly how we're gonna build our app.

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So, this is our process,

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or how we're gonna put everything together.

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This isn't information

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that's super critical to have.

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I just wanna make sure that

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it's really clear to you

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how we're gonna build the application

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and, you know, some of the little pitfalls

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as we're going through here.

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So, the first thing we're gonna do is,

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we're going to build our entire application

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with just dummy data.

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So, dummy data in this case is

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data that we're just going to statically write

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on the client side.

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We're literally gonna write in objects,

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one for each profile that we wanna show.

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After we get our entire app working

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with this dummy data,

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so, this kind of client side data,

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we're going to replace the dummy data

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with an AJAX request.

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So, we're gonna say,

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Okay, we're no longer gonna use this client side only,

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just the dummy data.

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Instead, we're going to load it off

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of a third-party server,

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some external service to our application.

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Only after we've done this

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kind of AJAX loading portion

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are we going to write the middleware

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that we actually want to, you know,

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get at and learn more about.

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So, this is where we will hopefully spend

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the bulk of our time.

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We're going to write a middleware

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to help us fetch our data.

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We're gonna talk,

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be talking more about exactly

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what our middleware does,

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and what its purpose is.

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You know how it works, obviously,

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when we get into these later two sections.

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So, in the first portion of this,

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this entire section,

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we're going to be concerned

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only with building our app.

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We're gonna do it pretty quickly,

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since it's gonna be some pretty,

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you know, boring stuff.

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We're just showing the list of users.

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Nothing that exciting.

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So, we're gonna get through this stuff

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as fast as possible,

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and then we're gonna dive

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into the middleware stuff.

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Again, I just want it to be clear

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kinda the roadmap

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or the path we're we're gonna take here

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in getting to be more familiar with middleware.

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Okay? So, with that in mind,

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I will catch you in the next section,

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where we will start building our app

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with some dummy data.