Doploy behind a reverse proxy

I’m moving from springfox to springdoc and I’m finding the following problem.

In the doc, you specify that the deploy urls are as follows:

http://server:port/context-path/swagger-ui.html
http://server:port/context-path/v3/api-docs 

In my case, the Spring Project is behind a reverse proxy, and I don’t have access to the base url of the server, so my urls look something like:

http://server:port/custom-path/context-path/swagger-ui.html
http://server:port/custom-path/context-path/v3/api-docs 

The problem is when I attempt to enter to the swagger-ui.html I see this error: The point is, the web page is attempting to reach http://server:port/context-path/v3/api-docs instead of http://server:port/custom-path/context-path/v3/api-docs

As a last thing to mention, if I try to load http://server:port/custom-path/context-path/swagger-ui/index.html?url=/custom-path/context-path/v3/api-docs&validatorUrl= the page loads as expected

Is there a way to customize the path it loads by default? or maybe make it able to know the path where you are?

[springdoc]

Hi,

First of all, you need to make sure the following header is set in your reverse proxy configuration: X-Forwarded-Prefix For example, using apache 2, configuration

RequestHeader set X-Forwarded-Prefix "/custom-path"

Then, in your spring-boot application make sure your application handles this header: X-Forwarded-For. There are two ways to achieve this:

• Since spring-boot 2.2, there is a new property to handle reverse proxy headers:

server.forward-headers-strategy=framework

• Or you can add the following Bean to your application:

@Bean
ForwardedHeaderFilter forwardedHeaderFilter() {
   return new ForwardedHeaderFilter();
} 

Please don’t forget to give a feedback about which option resolved your issue.

[hectoryo]

Hi, I’ve been able to fix this issue by adding the @Bean and adding the headers to my nginx proxy. Thanks