Spring Boot Microservices Project Example - Part 2 | Inter Service Communication

Can you point me to a link which has good content on Java Streams

Found the issue it was an empty stream.

Order gets placd even if sku not matches.

Unable to find sku codes order is placed anyways.

What happens if they order more than is actually in stock?

what about relationships im so confused so we have for exemple student that have many courses and each one is a microservice how can we do this

instead of sending back Inventory Response to Order Service then check all match or not , i think it is better to check in Inventoryservice and sending back true/false

Hey, how's that rainbow indents plugin called?

I am getting 404 error request while hitting the inventory API in postman. As a result I am unable to get the Out of stock message and Order placed successfully message. Could you please tell me how to fix it?

The block() method should not be used and generates an error. Is there any other way to create synchronous inter services communication?

Spring Data MongoDB Tutorial: I think you mistake here with a link

What is the mean of "OrderLineItems"? What we use for? Can somebody explain?

anybody facing issue with lombok builder
I am getting many things but it is not working

java: cannot find symbol
symbol: method builder()
location: class com.utech.inventoryservice.dto.InventoryResponse

Really its a awesome content it can be great if we have an user registration and login also with authorization and authentication after login only user will able to access other services

I would like to enroll for this training

in the postman when i click send it's giving me an exception "java.sql.SQLException: Field 'id' doesn't have a default value". how to solve this problem all my code is the same

Hi, I love your tutorial thus far, and you make so easy to understand and follow you. I was wondering if you had a beginner course on Spring boot that explains concepts like bean etc? Thank you in anticipation of your response.

Now, I have a problem adding EurekaClientAnnotation, the maven dependency was dowloaded but I have this error: java: cannot find symbol
symbol: class EnableEurekaClient, anyone facing the same issue [spring-cloud version: 2022.0.2]

I love the fact that you choice web client to sync communication and the way that you explain it, you're amazing. Thank you!, also I love the fact that you're very organized and that you teach to use construct injections instead of field injection. 10/10

can I know why I always get empty array [] when use get inventory using postman?. Even the skucode is not or in DB, also return null? I have replaced findBySkuCodeIn with findAll, and it's able to return all database value.

very good!

Looks like it is not enocuraged now to use block() on WebClient. I got an exception when I tried this with Spring Boot 3. I fixed it by using subscribe().

Just a thought to share, InventoryService can be added to OrderSvc as a dependency, and InventoryResponse can be accessed and reused.

Sir can u please send me this project's source code 🙏

Why should we check for each item if available or not before ordering ? We could have probably set a flag in product service so that we don't display item if not in stock or label as out of stock. Checking of each item in OrderController is not something I would go for.

Hey, one question: Why duplicate the InventoryResponse class? If these two services are designed to communicate with each other, we could add the inventory dto as a dependency to the order-service project, right?

Bug sur, for example if we have a order request with at least on skuCode instock, and others skucodes not existing in database, we can always place Order!! 😇 {
"orderLineItemsDtoList":[
{
"skucode": "iphone_13",
"price": 100,
"quantity":1
},
{
"skucode": "bla_bla",
"price": 100,
"quantity":1
}
]
}

any way that's a Great Tutorial, i learn a lot thanks

Hi, This Tutorial is really helpful. Thanks is not enough but a million thanks. Please help with below query
interviewer: How are you securing ur APIs/endpoints
me: we implemented security by using JWT
interviewer: if I have an API and that API internally calls an external API, how do you authenticate the external API?
are you using the same jwt token to authenticate internal/external APIs?
or if you are using 2 jwt tokens, then u r calling JWT server twice which is not good?

So actually he confused me, and I was blank

Please give me a perfect solution, Thanks in advance

Mobile view can't see font

why not using feign client??

I am getting 404 error request while hiiting the inventory api in postman . can someone please help???

Pls make the webflux, react tutorial

allMatch would cause problem since the stream is empty then true is returned. E.g. if you order iPad your order still would be placed even your inventory has no iPad.

Very informative video, thanks for your efforts

What is the point of the Product Service?

Wouldn’t this be a coupling? Because order services depends on inventory services to return.

Great Tutorial so far!! I am actually coding along with you, I have just one question, not sure if you already took care of it in the future videos, but after placing the order from order service, shouldn't the inventory table column quantity decrease by the quantity ordered ?

Thanks for tutorial. Just whant to add that, when inventoryResponses empty then stream.allMatch returns true. Need to add check ifnot empty.

Ur shared links for mongodb and spring test are same

Why would you have REST communication between internal services? Such a waste.

How to handle fallback here?

For interservice communication why can't we use feignclient instead of webclient. Feignclient can be integrated with spring API Gateway for load balancing and url routing very easily. Can you check on that too.

Can you make the same course with quarkus framework

Next part video when can we expect sir ?

Nice! We should add a service discovery so we dont have the need to specify the ports. That’s probably what you’ll do in the next one, right? Great video! Thanks!!!