WEBVTT

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Hi everyone.

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After we already.

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Ask the rose property into the user collection.

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We need to do the authorization right now before writing the code.

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Let me show you what the idea first.

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Okay, I want to show you what we need to do for our polarization in laser inside the ground right here.

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I will use one more goal will be authorization draw.

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Okay.

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For example, like that.

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And?

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Actually, this is the ruler.

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Okay.

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It's much better.

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And furthermore, in order to create a new new user, I want only the admin can create the new user.

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Okay, so for that reason I want to boost something like this to be row with admin.

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Okay something like that.

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And inside the file own method.

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Also I want only the admin can find all users.

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And here will be the same with the admin.

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Or actually.

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I want the admin and user can also find the user.

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Okay.

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But the admin right here can find any user if that means one and the users can only access into belong

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that user.

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Okay.

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For example right here we will add, for example, we have a user one hot and one we have user to have

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a little okay.

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The admin can find the user one with the ID right here, or user two if that means one okay.

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But the normal user for example, when I logged in I logged in with the user one.

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It means I only can access to my profile.

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Okay.

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I cannot be able to access it to the another profile.

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That's what I want to build the version for the users okay.

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And this will be the same with update okay.

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I want the admin can update any account okay.

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But user can only update um on account.

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Right.

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And the list will be also okay.

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That's what we want right now.

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Let me show you How to do last.

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Now, right here inside the course, I will create one more row with authorization graph.

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Sorry.

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Row, row plus these.

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And I need to copy this.

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Right.

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Inside the for loop.

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Sorry.

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Is that a overview of GA and copy everything.

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And change row row row and row.

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Here let's replace with a retro okay.

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And we already have a row GA.

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So how about The custom decorator.

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Let me show you.

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If you click inside the security, click on authorization.

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We will scroll a little bit.

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Give you say right here we will define a new decorator with the row okay.

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We will use we will use the set metadata from.

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Net yes.

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And we will put a key a value okay.

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Right now let's go with me and I will explain that for you.

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What exactly about we set metadata.

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So now let's create the decorator.

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Row decorator.

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Yes.

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And I will copy everything over here so that we can remove the row.

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Right here.

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Let's replace it with only screen.

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And.

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Obtain the screen right here is not good.

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If you are going to keep my USA, does the rotor here only have user and admin software inside the global?

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I will define the new in the file.

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I row.

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I'm ready for the pass.

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Okay we will admin.

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Okay.

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Like this.

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And I will use that directly into the user schema over here.

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It will be totally the same okay.

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And right now inside the decorator I click give you a row over here with a row.

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Okay.

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We will divide the rows like this.

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It means it will row right here.

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Okay.

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Very easy.

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So after we already got the rows right here, let's replace this.

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He brought us.

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He brought us.

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Okay, this will be work.

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And let me explain for you what exactly about set metadata?

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Okay.

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The metadata is decorator.

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Okay.

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It already written by Next.js.

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So what?

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What is made row here?

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First of all, inside the controller we will use decorator right here in the method.

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Okay.

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It may.

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It will somehow generate no metadata for specific method.

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Okay.

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Let me show you what I mean.

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You can see the result of the segment and that will be somehow like this.

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Okay with me.

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If you say right here the case.

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Right here, it will become somehow like the row case, right?

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It will become somehow this rows and right here it will boost the method possible like five one.

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And right here it will boost the row like mean okay.

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And user okay.

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And maybe in the create method it will create only that mean okay it will somehow create something like

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this.

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Okay.

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This is the.

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Image.

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With the set metadata.

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It will create the metadata for specific methods.

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Okay.

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And it only exists in the runtime.

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Okay.

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When we bootstrap or when we start the application, it will create the structure like this for you.

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Okay.

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That's about metadata.

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And for that reason we can retrieve that okay.

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Of course when we set that we can achieve that using this split.

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Why.

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Let me say.

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Let me find somewhere.

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We can retrieve that.

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Here.

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Okay.

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We can use this.

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Why?

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We can find us in the execution context and click into the reflection and metadata.

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Okay, you can see.

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Right here we can search like that.

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And it also get us, you say this dot reflector and we will pass the, uh, the case.

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Okay.

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And we need to pass the context of the handler.

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Okay.

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This will be return for use the method okay.

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It will return for you the method name okay.

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For example like firewall okay.

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Or something like that.

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So that's with this way we can retrieve that.

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Let me show you inside the controller we need to inject the reflector.

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Right.

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Right here we can invoke that.

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Inside here let.

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Private flat.

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And let's say.

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And after that, let me show you.

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I will copy paste this line of code.

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I'm not remember.

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Okay.

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Right here I will use the resize row.

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And I will put okay with this okay.

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Over here.

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And let me show you I will console.log requires row.

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Let me perform the action into get on user.

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Okay.

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Let me say.

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Um, Mark.

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So we will.

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See.

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So.

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Now you can say it will retrieve always the user right here based on this thing.

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Okay.

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Based on the method name.

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Okay.

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Let me summarize.

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With the get handler, it will somehow Return the method name of this thing.

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Okay.

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And beyond that, it will retrieve all the rows.

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Okay.

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Because this here we're using the array.

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Right.

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We will set the array over here.

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So it is.

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And furthermore if I move the user let's say.

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Let me say okay we already lost the admin and user.

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So let me remove that.

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With this approach we can easily.

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Guess the metadata from specific method.

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So I hope you understand this video and I will do the rest job in the next.

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I will see you in the.