[CheHyeonYeong]

Summary

• Add @Order(0) annotation to gatewayRestClientCustomizer bean
• This allows users to define custom RestClientCustomizer beans that run after the gateway customizer and can override the requestFactory

Test plan

• Added test to verify @Order annotation exists on the bean method
• Added test to verify custom RestClientCustomizer can coexist with gateway customizer
• All existing tests pass

Closes #3626

[ryanjbaxter]

I dont see how this test verifies that additional RestClientCustomizer runs after the default one

[Asyncronize]

Hi @CheHyeonYeong, are you still planning to update this one? I'd like to help get #3626 over the line.

I think what @ryanjbaxter is after is a test where the ordering actually changes the outcome. Something like: define a ClientHttpRequestFactory bean so the gateway customizer applies it, add a user RestClientCustomizer without @Order that sets a different request factory, then take the RestClient.Builder from the context and check that the user's factory is the one that wins. Without the @Order(0) that test should fail, since the gateway customizer would run last and overwrite it.

If you don't have time for it, no problem at all. I'm happy to open a follow-up PR that builds on yours and keeps you as co-author.

[CheHyeonYeong]

@Asyncronize
oh i don't have time to update it plz do it
thx