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d-echo

Spring Cloud based, distributed echo server.

Prerequisites

  1. Java 11
  2. Docker
  3. Docker compose
  4. Gradle (4.0 or later)
  5. Build the project: gradle clean build
    1. Or ./gradlew clean build. In the case, required gradle version will be downloaded.

How to run

  • Make .env file in root project directory
  • Put environment variable(with defined values) in the file:
    • CONFIG_SERVICE_PASSWORD
    • CONFIG_SERVICE_USER
    • DB_USER
    • DB_PASSWORD
    • DB_NAME
    • JWT_SIGNATURE_PRIVATE_KEY
    • JWT_SIGNATURE_PUBLIC_KEY

JWT_SIGNATURE_PRIVATE_KEY and JWT_SIGNATURE_PUBLIC_KEY is a valid pair of RS256 keys. The keys can be generated with generateKeyPair.sh script, placed in the project root.

Locally

All the services should have link to a Config service. The link should be passed as property:

-Dspring.cloud.config.uri=http://localhost:8888

Or the property(spring.cloud.config.uri) can be passed via your IDE.

In Config service, there is shared configuration for 'dev' profile: application-dev.yml The configuration points at local Discovery service instance http://localhost:8761/eureka/

To get the corresponding configuration, 'dev' profile should be activated for each service.

With Docker Compose

Dev

docker-compose -f docker-compose.yml -f docker-compose-dev.yml up

docker-compose.dev.yml inherits docker-compose.yml with additional possibility to build images locally and expose all containers ports for convenient development.

Prod

docker-compose -f docker-compose.yml up

Request examples

Login
POST http://localhost:4000/auth/login
Accept: application/json, text/plain, */*
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,ru;q=0.8
Content-Type: application/json

{
"login": "test",
"password": "test"
}

###

Token will be generated as response. The token can be used in a next request.

Echo
GET http://localhost:4000/echos/echo/asdasd
Accept: application/json, text/plain, */*
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,ru;q=0.8
Content-Type: application/json
Authorization: Bearer -=token=-

###

The request made to Echo service, via Gateway(Zuul).