Accessing OAuth2 protected resources on GitHub

Pragya Keshap answered on February 24, 2023 Popularity 1/10 Helpfulness 1/10

answer Accessing OAuth2 protected resources on GitHub

Accessing OAuth2 protected resources on GitHub

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The Thymeleaf page doesn't any adjustments compared to the WebFlux example (you can find it here). That's why I did not include it in this post and just did a small change for the MVC controller.

Whereas we made use of the reactive types Flux and Mono in the WebFlux application, I'm now using .block() on the WebClient request to return a String:

@Controller
@RequestMapping("/")
public class GitHubController {

    private static final String GITHUB_API_URL = "https://api.github.com";

    private WebClient webClient;

    public GitHubController(WebClient webClient) {
        this.webClient = webClient;
    }

    @GetMapping
    public String index(@RegisteredOAuth2AuthorizedClient OAuth2AuthorizedClient authorizedClient,
                        @AuthenticationPrincipal OAuth2User oauth2User,
                        Model model) {

        model.addAttribute("repositories", fetchAllRepositories(authorizedClient));
        model.addAttribute("username", oauth2User.getAttributes().get("login"));

        return "index";
    }

    private List<String> fetchAllRepositories(OAuth2AuthorizedClient authorizedClient) {
        List<String> repositoryNames = new ArrayList<>();

        this.webClient
                .get()
                .uri(GITHUB_API_URL, uriBuilder ->
                        uriBuilder
                                .path("/user/repos")
                                .queryParam("per_page", 100)
                                .build()
                )
                .attributes(oauth2AuthorizedClient(authorizedClient))
                .retrieve()
                .bodyToMono(ArrayNode.class)
                .block()
                .forEach(jsonNode -> repositoryNames.add(jsonNode.get("full_name").asText()));

        return repositoryNames;
    }

}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: github java

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Contributed on Feb 24 2023

Pragya Keshap

0 Answers Avg Quality 2/10

Accessing OAuth2 protected resources on GitHub

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