public String calculateServerBaseUrl(String serverBaseUrl, HttpRequest httpRequest) {
		String customServerBaseUrl = serverBaseUrl;
		if (serverBaseUrlCustomizers.isPresent()) {
			for (ServerBaseUrlCustomizer customizer : serverBaseUrlCustomizers.get()) {
				customServerBaseUrl = customizer.customize(customServerBaseUrl, httpRequest);
			}
		}

		return customServerBaseUrl;
	}
Sets server base url.

@param serverBaseUrl the server base url
@param httpRequest   the http request
@return the string
springdoc-openapi-starter-common/src/main/java/org/springdoc/core/service/OpenAPIService.java