Swagger UI redirecting to /swagger-ui/index.html?configUrl=/v3/api-docs/swagger-config

Question

I am using springdoc-openapi-ui, when I hit http://localhost:8080/swagger-ui.html URL it is always redirecting to http://localhost:8080/swagger-ui/index.html?configUrl=/v3/api-docs/swagger-config. Is there any way to stop this redirect and load swagger on http://localhost:8080/swagger-ui.html instead.

Answer 1

I also encountered this issue because our app is behind a gateway/load balancer and on Docker. My goal is to really just access the Swagger UI and my workaround is to access /swagger-ui/index.html directly. It loads the "Swagger Petstore". In the "Explore" field, I type /v3/api-docs to load my application's APIs.

Answer 2

this is not about the redirect, as it works to just open to http://localhost:8080/swagger-ui/index.html. But some answers are about disabling the petshop and configUrl. Supplying configUrl is not working anymore for a autoconfigured springdoc. Overwriting the url, config-url (if needed) and default url works with the following application.yml:

springdoc:
  swagger-ui:
    url: "/v3/api-docs"
    disable-swagger-default-url: true

or you can use the topics plugin:

springdoc:
  swagger-ui:
    disable-swagger-default-url: true
    urls:
      - url: "/v3/api-docs"
        name: "myService"

Answer 3

I found a post to workaround for this. Scan and modify the index.html to replace petStore URL for apiDoc URL

    @Configuration

    public class DocOpenApiConfiguration implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/**/*.html")
                .addResourceLocations("classpath:/META-INF/resources/webjars/")
                .resourceChain(false)
                .addResolver(new WebJarsResourceResolver())
                .addResolver(new PathResourceResolver())
                .addTransformer(new IndexPageTransformer());
    }

    public static class IndexPageTransformer implements ResourceTransformer {

        private String overwriteDefaultUrl(String html) {
            return html.replace("https://petstore.swagger.io/v2/swagger.json",
                    "/v3/api-docs");
        }

        @Override
        public Resource transform(HttpServletRequest httpServletRequest, Resource resource, ResourceTransformerChain resourceTransformerChain) throws IOException {
            if (resource.getURL().toString().endsWith("/index.html")) {
                String html = IOUtils.toString(resource.getInputStream(), StandardCharsets.UTF_8);
                html = overwriteDefaultUrl(html);
                return new TransformedResource(resource, html.getBytes());
            } else {
                return resource;
            }
        }
    }
}

Answer 4

When I ran your code the legend was there, but it was behind and slightly above the plot, and then cut off when plt.savefig() is called. I was able to get it to work with the bbox_inches='tight' argument of plt.savefig() and the following to move the legend.

fig.legend(handles=[l1, l2], bbox_to_anchor=(0.7, 1.1), ncol=2)