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https://github.com/teedjay/quarkus-reactive-devservices
Reactive Quarkus with Kafka and PostgreSQL
https://github.com/teedjay/quarkus-reactive-devservices
java kafka postgres quarkus reactive vert-x
Last synced: 20 days ago
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Reactive Quarkus with Kafka and PostgreSQL
- Host: GitHub
- URL: https://github.com/teedjay/quarkus-reactive-devservices
- Owner: teedjay
- Created: 2021-09-10T16:19:19.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2021-09-10T16:29:32.000Z (about 3 years ago)
- Last Synced: 2024-10-10T20:43:12.320Z (about 1 month ago)
- Topics: java, kafka, postgres, quarkus, reactive, vert-x
- Language: HTML
- Homepage:
- Size: 16.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# quarkus-reactive-devservices
This project uses Quarkus and when starting up dev-mode you will have Kafka and PostgreSQL provided
for you using Quarkus dev-services.
- https://quarkus.io/guides/kafka-dev-services
- https://quarkus.io/guides/datasource#dev-services
## Dev Services
Quarkus dev-services uses TestContainers to start Kafka and PostgreSQL
instances both for development and testing.
You can expect the following if you check what's running in Docker in dev-mode :
```shell script
❯ docker ps
CONTAINER ID IMAGE
fcfe29a7c0ab vectorized/redpanda:v21.5.5 Kafka
04ac9431e72c postgres:13.2 PostgreSQL
707d6b214905 testcontainers/ryuk:0.3.1 TestContainers WatchDog
```
If you enable continuous testing you can expect a separate set of containers
for running the actual tests - like this :
```shell script
❯ docker ps
CONTAINER ID IMAGE
# these are for development (hot-reload)
fcfe29a7c0ab vectorized/redpanda:v21.5.5 Kafka
04ac9431e72c postgres:13.2 PostgreSQL
707d6b214905 testcontainers/ryuk:0.3.1 TestContainers WatchDog
# these are used by tests only
973a81dd633a vectorized/redpanda:v21.5.5 Kafka
f860bc34b461 postgres:13.2 PostgreSQL
147ff62772d4 testcontainers/ryuk:0.3.1 TestContainers WatchDog
```
## Running the application in dev mode
You can run your application in dev mode that enables live coding using:
```shell script
./mvnw compile quarkus:dev
```
## Using CURL to test application
```shell script
# push new message to Kafka
curl http://localhost:8080/kafka
# messages are processed from the topic avove and the result posted to another Kafka topic
# the result is streamed from final Kafka topic using SSE
curl -N http://localhost:8080/sse
```
> **_NOTE:_** Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.
## Packaging and running the application
The application can be packaged using:
```shell script
./mvnw package
```
It produces the `quarkus-run.jar` file in the `target/quarkus-app/` directory.
Be aware that it’s not an _über-jar_ as the dependencies are copied into the `target/quarkus-app/lib/` directory.
If you want to build an _über-jar_, execute the following command:
```shell script
./mvnw package -Dquarkus.package.type=uber-jar
```
The application is now runnable using `java -jar target/quarkus-app/quarkus-run.jar`.
## Creating a native executable
You can create a native executable using:
```shell script
./mvnw package -Pnative
```
Or, if you don't have GraalVM installed, you can run the native executable build in a container using:
```shell script
./mvnw package -Pnative -Dquarkus.native.container-build=true
```
You can then execute your native executable with: `./target/quarkus-reactive-devservices-1.0.0-SNAPSHOT-runner`
If you want to learn more about building native executables, please consult https://quarkus.io/guides/maven-tooling.html.