k-a-m-project / backend

RESTful Spring API for backend services.

RESTful Spring API for Product Management services.

Product Module documentation

backend's Issues

Configure mongoDB for product microserviec

• Add docker compose to the product service including mongoDB configurration.
• Also add required configurations to microservice properties.

The same Error occur again(the server responded with a status of 500 (Internal Server Error)

Add Unit tests for Product (post, put, delete, getAll)

Add Unit tests for order (post, put, delete, getAll)

initial spring project

Build Java spring boot application from the scratch using spring cloud.

Create CRUD operations for order microservice

initiate product microservice

add @AllArgsConstructor annotation on service and controller layers

make getAllProducts(int page, int size) in the controller return list of products instead of page

Best practice: return list of objects

https://zetcode.com/springboot/pagination/

https://medium.com/shoutloudz/pagination-and-sorting-using-spring-boot-103bba7bc4d7

Add Registration Controller

Add Swagger to project

Authentication service

Stablish an authentication service which handles:

1. Oauth2.
2. Regular username, password authentication.
   based on LDAP server

make addProduct(@RequestBody Product product) in the controller return the saved product

Host project on Cloud

Add Database migration to Product service.

the server responded with a status of 500 (Internal Server Error)

2023-03-05T15:29:03.894Z ERROR 1 --- [nio-8082-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.data.redis.RedisSystemException: Error in execution] with root cause

io.lettuce.core.RedisReadOnlyException: READONLY You can't write against a read only replica.
at io.lettuce.core.internal.ExceptionFactory.createExecutionException(ExceptionFactory.java:144) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.lettuce.core.internal.ExceptionFactory.createExecutionException(ExceptionFactory.java:116) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:120) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:111) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:747) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:682) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:599) ~[lettuce-core-6.2.2.RELEASE.jar!/:6.2.2.RELEASE]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[netty-transport-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.87.Final.jar!/:4.1.87.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.87.Final.jar!/:4.1.87.Final]
at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

Use Redis Cache with the product microservice.

The same Error occur again(the server responded with a status of 500 (Internal Server Error)

Create CRUD operations for user microservice

Create CRUD for product microservice

Make all methods of the controller return ResponseEntity

initiate order service

remove Page<Product> findAll(Pageable pageable) from the ProductReposatory

Interface MongoRepository<T,ID>

All Superinterfaces:

1. CrudRepository<T,ID>
2. ListCrudRepository<T,ID>
3. ListPagingAndSortingRepository<T,ID>
4. PagingAndSortingRepository<T,ID> : contains (Page findAll(Pageable pageable))
5. QueryByExampleExecutor
6. Repository<T,ID>

Choose prefered database

initiate User service