microservices

How Rest Controller handle multiple request at same time for a single instance application?

末鹿安然 提交于 2021-02-18 08:13:30
问题 If multiple request are hit to a single RestController at the same time in a application, how it is handle for different scenarios (Multiple request to a single endpoints (only GET), or Multiple requests for multiple endpoints(GET, POST, PUT...)) Is multi-threading concept utilized? If yes is it possible to handle the requests in FIFO pattern? What is the maximum request a RestController can take ? Does RestController scope affect handling of requests (behavior of request scope with default

MApping JSON to array return null

本秂侑毒 提交于 2021-02-11 13:22:09
问题 When I use this line I get : AudDto[] auditDtos = objectMapper.readValue(responseBodyAsString, AudDto[].class); I got : com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `` out of START_OBJECT token So I add this line : objectMapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY); After that I got : com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field “errMsg” So I used : objectMapper.configure

MApping JSON to array return null

帅比萌擦擦* 提交于 2021-02-11 13:21:57
问题 When I use this line I get : AudDto[] auditDtos = objectMapper.readValue(responseBodyAsString, AudDto[].class); I got : com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `` out of START_OBJECT token So I add this line : objectMapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY); After that I got : com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field “errMsg” So I used : objectMapper.configure

Run all microservices in a multi-project gradle build

不问归期 提交于 2021-02-11 08:24:23
问题 I have a multi-project gradle build that's roughly set up like this: RootProject - ServiceA - ServiceB - ServiceC - UI Each of these subprojects is using the Spark framework and runs an embedded web server. It's basically a microservices setup, so they all need to be up and running for the system as a whole to work. They each have a task defined like this: task runApp(type: JavaExec) { main = 'App' classpath = sourceSets.main.runtimeClasspath } I know I can manually start each service either

Run all microservices in a multi-project gradle build

柔情痞子 提交于 2021-02-11 08:24:09
问题 I have a multi-project gradle build that's roughly set up like this: RootProject - ServiceA - ServiceB - ServiceC - UI Each of these subprojects is using the Spark framework and runs an embedded web server. It's basically a microservices setup, so they all need to be up and running for the system as a whole to work. They each have a task defined like this: task runApp(type: JavaExec) { main = 'App' classpath = sourceSets.main.runtimeClasspath } I know I can manually start each service either

Run all microservices in a multi-project gradle build

删除回忆录丶 提交于 2021-02-11 08:23:03
问题 I have a multi-project gradle build that's roughly set up like this: RootProject - ServiceA - ServiceB - ServiceC - UI Each of these subprojects is using the Spark framework and runs an embedded web server. It's basically a microservices setup, so they all need to be up and running for the system as a whole to work. They each have a task defined like this: task runApp(type: JavaExec) { main = 'App' classpath = sourceSets.main.runtimeClasspath } I know I can manually start each service either

Run all microservices in a multi-project gradle build

旧巷老猫 提交于 2021-02-11 08:22:54
问题 I have a multi-project gradle build that's roughly set up like this: RootProject - ServiceA - ServiceB - ServiceC - UI Each of these subprojects is using the Spark framework and runs an embedded web server. It's basically a microservices setup, so they all need to be up and running for the system as a whole to work. They each have a task defined like this: task runApp(type: JavaExec) { main = 'App' classpath = sourceSets.main.runtimeClasspath } I know I can manually start each service either

Axon - Cannot emit query update in different microservice

我只是一个虾纸丫 提交于 2021-02-11 07:14:07
问题 I'm bothering with situation when I want to emit query update via queryUpdateEmitter but in different module (microservice). I have application built upon microservices and both are connected to the same Axon Server. First service creates subscriptionQuery, and sends some commands. After a while (through few commands and events) second service handles some event, and emits update for firstly subscribed query. Unfortunately it seems like this emit doesn't get to subscriber. Queries are exactly

Axon - Cannot emit query update in different microservice

不羁的心 提交于 2021-02-11 07:13:24
问题 I'm bothering with situation when I want to emit query update via queryUpdateEmitter but in different module (microservice). I have application built upon microservices and both are connected to the same Axon Server. First service creates subscriptionQuery, and sends some commands. After a while (through few commands and events) second service handles some event, and emits update for firstly subscribed query. Unfortunately it seems like this emit doesn't get to subscriber. Queries are exactly

Relational DB in microservices

我的未来我决定 提交于 2021-02-10 15:07:03
问题 I have a monolithic application that currently uses a PostgreSQL DB and the schemas are set up as you would expect for most relational databases with various table data being linked back to the user via FKs on the user_id . I'm trying to learn more about microservices am trying to migrate my python API to a microservice architecture. I have a reasonable understanding of how I'm going to break up the larger app into smaller parts, however, I'm not entirely clear on how I'm supposed to deal