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In the last video, we have seen how easy bank application looks on on a high level, we understand

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what is a functional requirement of the application, but the application to work and to enhance it

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further, we have to think about its backend associated with the database.

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So as we have seen, there are particular pages which users should be able to navigate without any credentials

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associated with it, like contact us or not.

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So for the pages, we have to build associated back and services like contacts, national positions

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where they will accept requests from the UI and accordingly provide a response either from the database

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or taking the data from the U.S. and into the database.

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And at the same time, we also saw Dashboard Page, where it has four sections of operations and logged

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in user can perform like he can check his account details, balance details and loans and card details

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for those four operations we have to build associated with services and we have to make sure those services

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are protected so that someone from you why are you back in AIPA can't call them without any proper authentication

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dictums forwarded it.

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So these are the services that we are going to build in the backend.

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So let's go and first create a single security project like we have created in the previous videos.

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Let's try to create one more time the same way so that you get to use or to create a simple security

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project.

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And later on we can add all the services to the same project.

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So like we discussed, we had to first create a simple, good based project for that, we just have

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to go to start ups, being able to select all these values, project based project language, Java and

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Springboard, whatever version, and you'll feel comfortable next, followed by a group autographed.

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This time I just mentioned Spring Security Section two as a project me and followed by packaging should

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be John Salvacion should be eight and I will be adding and then please start a project like Spring Security

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and one more time that I need is spring.

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So now I click 200, which will download Culliton project.

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Now I have to go to that location and extract the words that come to eclipse and click on import projects,

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select existing Mavin projects, roads to the location where we have extracted that newly downloaded

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project, which is spring security detection to clicking on finish.

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We create the project in your workspace.

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And since you have all those Marin dependencies, if you are doing this first time, it will download

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all the independents.

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So this is how all American dependence dependencies downloaded, all the gas needed are going to the

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same class security section to application and job application.

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This is the first time that we're running inside.

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The project is trying to take some time to build.

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And as you see, the project started successfully at the port AT&T and like we are discussing the previous

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election, by default, bring security provides a password which is displayed in the console.

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We have the default security password that is provided by the spring framework here in the console.

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But if we can recollect from the previous sections that we discussed, we can always change the default

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behavior of the security by going through the application of properties and providing a couple of properties

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related username and password where you can define your username and password configurations.

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It could be we use these credentials to authenticate any request that is coming to the back.

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And the next thing that we have to do here is to build a rest controllers and the services associated

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for all the services that we are going to call from that you want.

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If you can recall from the previous video of the all the services that we are going to invoke from the

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UI to make this an application, we will have it back and the database interaction.

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So now to make it quick, I already created the controls for all the services associated to them.

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Let me walk you through all those controls before I already created a package called Kondrat Easy by

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the state controller in that I have created a controller for each and every service associate in the

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UK, for example, for notices where we are trying to get the notices from the database from UI.

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We have a part called Notices and the Method Name and Associated Matter implementation.

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So here we know we always return the static response for all the controllers, but in future we're going

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to implement the actual business logic where we interact with the database.

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The final is how it looks for all the controller.

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Similarly, if you go and see for the contact controller, so it will save contact in quite a detail,

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detailed the database.

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I know here we should not supposed to use mapping because we are actually saving data into the database,

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but not reading the data from the database.

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So ideally in this scenario we have to use post mapping.

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But for now, since the responses are always static, no, we're not saving anything to database.

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I just keep it as kept mapping.

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But in future, when we are doing actual database interaction, we can always change it to post maximally.

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We have no account controller with the parties my account and it will return the static response followed

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by balance controller with my balance and Gotz controller where we display the court's details using

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the my cards, followed by a launch controller, the path launch with a static response.

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Now we have all the control as defined in the back and the they're going to use and the response that

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they're going to let us try and test in the next will do all the services.

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What's happening with the default.

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Thank you to you in the next by.