[FIXED] How to access spring boot properties from freemarker template

Issue

My problematic is really simple :

In my spring-boot web application, I have some env-related properties that the front/client-side needs to know about (let's say, a CORS remote url to call that is env dependant).

I have correctly defined my application-{ENV}.properties files and all the per-env-props mecanism is working fine.

The question I can't seem to find answer to is : how do you allow your freemarker context to know about your properties file to be able to inject them (specifically in a spring-boot app). This is probably very easy but I cant find any example...

Thanks,

Solution

Gonna answer myself :

Easiest way in spring-boot 1.3 is to overrides the FreeMarkerConfiguration class :

/**
 * Overrides the default spring-boot configuration to allow adding shared variables to the freemarker context
 */
@Configuration
public class FreemarkerConfiguration extends FreeMarkerAutoConfiguration.FreeMarkerWebConfiguration {

    @Value("${myProp}")
    private String myProp;

    @Override
    public FreeMarkerConfigurer freeMarkerConfigurer() {
        FreeMarkerConfigurer configurer = super.freeMarkerConfigurer();

        Map<String, Object> sharedVariables = new HashMap<>();
        sharedVariables.put("myProp", myProp);
        configurer.setFreemarkerVariables(sharedVariables);

        return configurer;
    }
}

Answered By - Pierre Gayvallet
Answer Checked By - Dawn Plyler (JavaFixing Volunteer)