Spring Boot WebFlux | Project setup & understanding Mono & Flux Internal Workflow | JavaTechie 

Thanks Amit 😊

Thanks buddy 🤛

Not sure it might be an editing mistake

If you will use a block then it will not be considered async right?

block() is like when you call get() or join() on an async/await in js. only when you dont have any preceeding tasks to do and can afford doing blocked retrieval.

What is the error

Okay I will do that

@@Javatechie Thank you Basant for your quick reply. your fans including me will be thankful if you can create video something like this whenever you have time: 1. creating a repository, service, controller classes with Mono & Flux class using mongoDbreactive DB. 2. then handle different types of expections like 404, 500 Exceptions, NOT_FOUND etc. from controller class by using @AdviceController or any other approach. 3. you are the best person to take a call to handle global exceptions FOR WEBFLUX. thank you in advance, GOD BLESS YOU...

No not possible

I have one uses case . I am calling multiple webclient call synchronous and return to graphql response . While return to graphql I am converting to mono object to Java object through completable future but we are getting time outs . I don’t want design change here . Could you please suggest for the next step

Can you try one solution from the mono object call toFuture().get()

@@Javatechie I have tried that also but without future is any another way?

Yes we can do but you need to return byte[]

@@Javatechie Thanks a lot

Yes Madam. You have to covert your file content into a Byte array, and write that to the HTTP response output stream. Also you have to mention the response content type and the filename. You may write you code in the following way : @RequestMapping(value = "/download", method = RequestMethod.GET) public void downloadPDFResource(HttpServletRequest request, HttpServletResponse response) { //Setting response content type response.setContentType("application/vnd.ms-excel"); //Setting Filename - the filename may also be derived dynamically response.setHeader("Content-Disposition", "attachment; filename=\"Sales_Group_Inbound_Data.xls\""); .HSSFWorkbook wb = new HSSFWorkbook(); /* Here you may initialize your work book object using hssf library*/ ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); // At this line the excel file gets written to ByteArrayOutputStream wb.write(outByteStream); byte[] outArray = outByteStream.toByteArray(); OutputStream outStream = response.getOutputStream(); // At this line the Byte Array gets written to HttpServletResponse output stream outStream.write(outArray); outStream.flush(); }

Response content type of an endpoint will have nothing to do with Spring Boot. Spring boot is about the initializing and running the application.

Community edition

How will add spring assistant

Now search plugin for spring initializer

IntelliJ

Free which is community edition

Can you play increase your volume ,😂