Spring Boot with Kotlin & JUnit 5 - Tutorial 8 - GET Single Bank

# Spring Boot - Web Layer - GET Endpoint for a Single Bank & Testing with JUnit 5
Similar to the GET endpoint that retrieves all banks, it is common to have GET endpoints that return a single entity based on some identifier provided in the path (the URL).
In this video, we create such an endpoint that allows fetching a single bank based on its account number. You’ll learn how to read path variables in Spring Boot (using @PathVariable). Plus, we continue using test-driven development (TDD) and write integration tests with @SpringBootTest and JUnit 5 to check the behavior of our new GET endpoint.

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[Kasula]

I think i will watch every of your tutorials now. Respect to your work and explaining.

[shakilahmed]

This series of tutorials is awesome in so many levels

[PeterSommerhoff]

Hey everyone, thanks for sticking to the tutorial series! You're already half-way done (even before this video) 😀

Keep your suggestions on other topics coming. What are you planning to learn in 2021?

[akon]

Thank you for your videos and hello from Russia!)

[HeyRicardoPerez]

Very nice tutorial I've learnt sring boot and kotlin as well :D

for next videos would be awesome, something about authentication and connect with DB

[drbaz]

it would be very useful to have a tutorial on git and github with relevance to this springboot application. Thanks Peter .. great tutorials. Looking forward to Tutorial 9

[happy.sngh]

You don't really need to "invalidate caches and restart" IDE. Just hit apply on settings when you make some changes. It will work

[shsoh]

Great video series, Unfortunately YouTube is trying their best to annoy us with ads, I've spent so much time closing the adds that I couldn't even follow up with the tutorial

[haochang]

Great series of tutorials!
What if there are more than one repository classes implementing the same BankDataSource interface, how does Spring know which bean instance to inject into BankService? Thanks!

[zr]

20:19 what is ?: can you explain instead of making us memorise the syntaxs?

[tsamridh]

How do you get those suggestions at the bottom your screen? Did you edit them in the video or did the IDE provided them to you? They are super helpful!

[zr]

Can you explain how Spring boot has access to the mockdatsource without importing it or declaring it?

[abhisheksaxena]

When I run my tests, the console is blank for the passed tests unlike yours. Is there any solution for this problem?

[diskostu]

I do not really understand the exception handling part, why it is necessary.
When we do and this account number does not exist, a "NoSuchElementException" is thrown. We can't we just "expect" this exception to be thrown in JUnit? Or maybe just try/catch?

[caffeinejavacode]

1. How to test accountNumber that was generated by UUID ?
2. We always rely with Bank data in our tests but these data can change (if we use Db for example) and our test will fail

[codestudy]

i think you need to mentione Bank? optional type for bank when using firstOrNull

[HarshKumar-kvxs]

Gradle has update now u dont have to switch to Intellij to run test @displayname will show correctly in gradle itself

[s.aravindh]

Python remote control exploit create small tutorial video bro 😀😀😀

[mr_wormhole]

You got me lost in junit5 nested class, this is literally the worst programming practice in entire programming world, nested classes, nested exceptions, welcome to java 2000