在Android中针对特定的Retrofit请求删除头信息

Question

在设置了这种拦截器之后，是否有一种方法可以删除特定的标头：

public class AuthInterceptor : Interceptor {
    override fun intercept(chain: Interceptor.Chain): Response {
        val original: Request = chain.request()
        val request: Request = original.newBuilder()
            .addHeader(AppConstant.HEADER_APP_TOKEN, AppConfig.apptoken) //<-- need to remove this one for only one request
            .addHeader(AppConstant.HEADER_SECURITY_TOKEN, AppConfig.security_token)
            .method(original.method(), original.body())
            .build()
        return chain.proceed(request)

这是我的Retrofit实例：

object RetrofitClientInstance {

    private val httpClient = OkHttpClient.Builder()
        .addInterceptor(AuthInterceptor())
        .addInterceptor(HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.HEADERS))

    private val retrofit = Retrofit.Builder()
        .baseUrl(AppConstant.SERVER_BETA)
        .addConverterFactory(GsonConverterFactory.create())
        .client(httpClient.build())
        .build()

    fun <T> getRetrofitInstance(service: Class<T>): T {
        return retrofit.create(service)
    }
}

这是我的API服务：

interface ApiService {
    @GET("/app/shoes")
    fun getShoes() : Call<Shoes>
}

感谢您的帮助 :)

- MagicaNexus

Answer 1

在API调用中添加一个标头，指示是否添加身份验证标头。就像这样：

interface ApiService {
    @GET("/app/socks")
    fun getSocks() : Call<Socks>


    @Headers("isAuthorizable: true")
    @GET("/app/shoes")
    fun getShoes() : Call<Shoes>

    @Headers("isAuthorizable: true")
    @GET("/app/sandals")
    fun getSandals() : Call<Sandals>
}

检查Interceptor中的头文件，如果满足条件，则添加头文件。就像这样：

public class AuthInterceptor : Interceptor {
    override fun intercept(chain: Interceptor.Chain): Response {
        val original: Request = chain.request()

        val shouldAddAuthHeaders = original.headers["isAuthorizable"] == "true"
        
        val requestBuilder = request
            .newBuilder()
            .method(request.method, request.body)
            .removeHeader("isAuthorizable")
        
        if (shouldAddAuthHeaders) {
            requestBuilder.addHeader(AppConstant.HEADER_APP_TOKEN, AppConfig.apptoken)
                    .addHeader(AppConstant.HEADER_SECURITY_TOKEN, AppConfig.security_token)
        }

        return chain.proceed(requestBuilder.build())
    }
}

- Xid