Spring Boot - Profiles (application.properties) to define baseUrl for HTTP requests

Question

The situation is that I have two api projects, API A does HTTP requests to API B. Both API's are deployed to a development and production environment.

What I want to achieve is the following: Build the project based on a specific profile (dev or prod) so that the code can use a particular baseurl to talk with the correct api on the correct environment.

So if I build API A based on prod flag, I want it to use the specific url to make http requests to API B that is deployed on it's own prod environment.

Answer 1

It looks like you're referring to profiles of maven, however you should probably check out spring profiles. The concept should change :

You're not supposed to build different artifacts for different environments.

Instead create a spring profile in service A:

application-dev.properties:

url.addr=dev-service-host:1234

application-prod.properties:

url.addr=prod-service-b-host:4321

Then run the application with --spring.profiles.active=dev (or prod ) flag.

Spring boot will load the correct definitions automatically because the dev/prod matches the suffix of properties file

Answer 2

You can define Spring-Boot profile as:

spring.profiles.active=prod

You also should have profiled .properties files in resources :

• in application-dev.properties you should have api.b.url={api_b_url_on_dev_environment}

• in application-prod.properties you should have api.b.url={api_b_url_on_prod_environment}

Or if you don't want to recompile your application after changing properties you may use outside .properties files.

In order for them to be included during app's deployment do the following:

• in some config directory add application-dev.properties and application-prod.properties
• deploy you app with the following properties: --spring.profiles.active=dev and --spring.config.additional-location=config/application.properties

This way the outside profiled properties will be included in deployment process. These .properties files have the highest priority in Spring.