If you’re familiar with the microservice architecture, then this might be a bit of an eye-opener. There’s been discussion for years about how to architect software in such a way that it can scale and handle high traffic volumes. This framework not only tackles these problems but also provides developers with tools to build applications without worrying too much about scaling or performance issues later on down the line.
The rise of the microservice architecture has been a great boon for web application development, but it’s also created some new challenges. One of these is getting all your services to work together without any downtime. This talk will outline an asynchronous framework which can be used in conjunction with other tools to build distributed apps that are resilient and performant at scale.,
The “how to create microservices in java” is a framework that allows developers to write software with asynchronous code. The framework was created by Netflix and has been used for creating web applications, mobile apps, and more.
Ktor is an asynchronous framework for building microservices, web apps, and other types of applications. From the ground up, Kotlin was used.
import com.example.plugins import io.ktor.server.engine.* import io.ktor.server.netty.* import io.ktor.server.netty.* import io.ktor.server.netty.* import io.ktor.server.netty.* import io. embeddedServer(Netty, port = 8080, host = “127.0.0.1”) is a fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun fun configureRouting() is a method for configuring routing. begin(wait = true)
fun Application.configure import io.ktor.routing.* import io.ktor.application.* import io.ktor.response.* call.respondText(“Hello Ktor!”) routing() routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing
- Localhost:8080 is used to run the embedded web server.
- Installs routing and provides responses. Hello, universe! when a GET http request for the root path is received
==================================================
- With PostMan, you may use the Ktor Request API.
- Routing.kt
import io.ktor.routing.* import io.ktor.application.* import io.ktor.request.* import io.ktor.response.* import io.ktor.request.* import io.ktor.response.* import io.ktor.response.* import io.ktor.request.* import io.ktor.response. Routing() get(“/”) routing get(“/”) routing get(“/”) routing get(“/”) routing get(” println(“URI: $call.request.uri”) println(“Headers: $call.request.headers.names()”) / Request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request request call.respondText(“Hello Ktor!”) println(“User-Agent: $call.request.headers[“User-Agent”]”) println(“Accept: $call.request.headers[“Accept”]”) println(“Query Params: $call.request.queryParameters.names()”) println(“Name: $call.request.queryParameter
Send a request to http://127.0.0.1:8080?name=Your Name&[email protected] using Postman.
This Is The Result Of Sending Url In IntelliJ IDEA Ultimate Run Application URI: /?name=YourName&[email protected]&[email protected] Headers: Accept, Postman-Token, Host, Accept-Encoding, Connection] [User-Agent, Accept, Postman-Token, Host, Accept-Encoding, Connection] PostmanRuntime/7.28.4 User-Agent */* Accept: [name, email] are query parameters. Your name is: [email protected] is the address to send an email to.
==================================================
import io.ktor.routing.* import io.ktor.application.* import io.ktor.request.* import io.ktor.response.* import io.ktor.request.* import io.ktor.response.* import io.ktor.response.* import io.ktor.request.* import io.ktor.response. get(“iphones/page”), Routing(), Routing(), Routing(), Routing(), Routing(), Routing(), Routing(), Routing(), Routing(), Routing(), Routing(), Routing() val pageNumber = call.parameters[“page”] val pageNumber = call.parameters[“page”] val pageNumber = call.parameter call.respond Text(“You don’t have a page number: $pageNumber”)
Send a request to http://127.0.0.1:8080/iphones/2 using Postman.
==================================================
kotlin(“jvm”) version “1.5.31” / or kotlin(“multiplatform”) or any other kotlin plugin kotlin(“plugin.serialization”) version “1.5.31” kotlin(“plugin.serialization”) version “1.5.31” kotlin(“plugin.serialization”) version “1.5.31” kotlin(“plugin.serialization”)
“> import io.ktor.routing () println(userInfo) call.respondText(“Everything Working Fine!”) Import io.ktor.application, io.ktor.request, and io.ktor.response. * Include kotlinx.serialization in your imports. * Application.configure is a lot of fun. Routing() / Request Body post(“/login”) routing call.respondText(“Everything Working Fine!”) val userInfo = call.receive() println(userInfo) call.respondText(“Everything Working Fine!”)
@Serializable data class is a data class that may be serialized. Information about the user ( val name:String, val email:String )
json() install(ContentNegotiation)
1- Use Postman to send a request to http://127.0.0.1:8080/login. 2- Click on POST. 3- In the Body section, choose JSON as the format and type the following json code: “name”: “YourName”, “email”: “[email protected]” 4- Send your message
This Is The Result Of Sending Url In IntelliJ IDEA Ultimate UserInfo(name=YourName, [email protected]) In Run Application IntelliJ IDEA Ultimate UserInfo(name=YourName, [email protected]) In Run Application IntelliJ IDEA Ultimate UserInfo(name=Your
==================================================
Call to the GatewayTimeout method. status = HttpStatusCode.GatewayTimeout); respondText(“Wrong!!!!!!!!!,” status = HttpStatusCode.GatewayTimeout); / OR a call to NotFound. respond Status = HttpStatusCode.NotFound) Text(“Not Found!!!!!!!!!”, status = HttpStatusCode.NotFound)
- If you’re looking for a way to send a JSON response to PostMan,
@Serializable data class is a data class that may be serialized. Information about the user ( val name:String, val email:String )
Select GET and enter http://127.0.0.1:8080/ in PostMan, then SEND The Result ======================================================== “YourName” is the name, and “[email protected]” is the email.
==================================================
- Downloading a File – Ktor Response
― The first step
1- First, create a new directory with the name files. 2- add a picture to the file
— Second Step
/ Ktor Response – Downloading a File get(“/fileDownload”) val file = File(“files/pic.png”) call.response.header(HttpHeaders.ContentDisposition, ContentDisposition.Attachment.Attachment.Attachment.Attachment.Attachment.Attachment.Attachment.Attachment. call.respondFile(file) withParameter(ContentDisposition.Parameters.FileName, “pic.png”).toString()) get(“/fileOpen”) / Ktor Response – Open a File in Browser call.response.header(HttpHeaders.ContentDisposition, ContentDisposition.Inline) val file = File(“files/pic.png”) call.respondFile(file) withParameter(ContentDisposition.Parameters.FileName, “pic.png”).toString())
GitHub
Visit Github for further information.
The “types of microservices” is a framework that allows developers to build asynchronous services, web applications and more. The framework has been around for about 9 years now.
Frequently Asked Questions
What framework is used for microservices?
A: Azure Container Service
What is asynchronous in microservices?
A: The asynchronous nature of microservices is different in that it does not require each service to be able to respond at the same time. Instead, they can work on their own schedule and send messages between themselves.
How do you make a Microservice asynchronous?
A: There are many different methods of making a Microservice asynchronous, including the use of distributed queues on Amazon Web Services.
Related Tags
- microservices example
- java microservices example
- java microservices framework
- microservices tutorial
- spring microservices
