Question

我是Rxjava的新手。我想从第一个api调用的响应中捕获访问令牌（作为标头的一部分），然后将该访问令牌（作为标头）用于后续的api调用。

注意：在第一个api调用中，响应没有正文，仅返回标头。

我的网络接口：

public interface NetworkInterface {

@POST("https://appauth.treuspan/Login")
Observable<Response<Void>> getAuthDetails(
        @Header("Content-Type") String contentType,
        @Body AuthRequestDetails authRequestDetails
        );

@POST("https://appauth.treuspan//storedetails")
Observable<StoreDetailsResponse> getStoreDetails(
        @Header("Content-Type") String contentType,
        @Header("Accept") String accept,
        @Header("Authorization") String authorization,
        @Body AuthRequestBody authRequestBody
        );
}

我的可观察方法：

    public Observable<Response<Void>> getAuthObservable() {

    return NetworkClient.getRetrofit().create(NetworkInterface.class)
            .getAuthDetails("application/x-www-form-urlencoded",
                    new AuthRequestDetails().getAuthRequestDetails())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Observer<Response<Void>>() {
                @Override
                public void onSubscribe(Disposable d) {

                }

                @Override
                public void onNext(Response<Void> voidResponse) {
                    String access_token_received = voidResponse.headers().get("access_token");
                }

                @Override
                public void onError(Throwable e) {

                }

                @Override
                public void onComplete() {

                }
            });

以上内容无法编译。它的编译说：

Incompatible type:
required: io.reactivex.Observable<retrofit2.Response<java.lang.Void>>
Found:    void

如果我能够成功进行上述调用，则必须使用访问令牌作为后续调用中标头的一部分，如下所示：

public Observable<StoreDetailsResponse> getStoreDetailsObservable() {
    return NetworkClient.getRetrofit().create(NetworkInterface.class)
            .getStoreDetails("application/x-www-form-urlencoded",
                    "application/json",
                    "Bearer access_token_received",
                    new AuthRequestBody().getAuthRequestBody())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Observer<StoreDetailsResponse>() {
                @Override
                public void onSubscribe(Disposable d) {

                }

                @Override
                public void onNext(StoreDetailsResponse response) {

                }

                @Override
                public void onError(Throwable e) {

                }

                @Override
                public void onComplete() {

                }
            });
}

上面的代码也无法编译。它说：

Incompatible type:
required: io.reactivex.Observable<com.example.androidtest.model.StoreDetailsResponse>
Found:    void

请提出我该如何实现。

Answer 1

subscribe（...）将返回一个订阅尝试编辑您的代码，使方法返回这样的订阅

 private func convertDataWithCompletionHandler(_ data: Data, completionHandlerForConvertData: (_ result: AnyObject?, _ error: NSError?) -> Void) {

    var parsedResult: AnyObject! = nil
    do {
        //class func jsonObject(with data: Data, options opt: JSONSerialization.ReadingOptions = []) throws -> Any
        //Returns a Foundation object from given JSON data.

        parsedResult = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as AnyObject
    } catch {
        let userInfo = [NSLocalizedDescriptionKey : "Could not parse the data as JSON: '\(data)'"]
        completionHandlerForConvertData(nil, NSError(domain: "convertDataWithCompletionHandler", code: 1, userInfo: userInfo))
    }

    completionHandlerForConvertData(parsedResult, nil)
}

使用RxJava进行Chain Retrofit的授权请求和后续调用

1 个答案: