6

我最近更新了 Retrofit to2.7.0和 OKHttp 以3.14.4利用 Retrofit 接口上的挂起乐趣。

除此之外,我还尝试为刷新令牌逻辑实现 Authenticator。

这是改造界面

interface OfficeApi {
    @Authenticated
    @POST
    suspend fun getCharacter(): Response<CharacterResponse>
}

这是我的身份验证器

class CharacterAuthenticator : Authenticator {

    override fun authenticate(
        route: Route?,
        response: Response
    ): Request? {
        if (responseCount(response) >= 2) return null

        return response.request()
                        .newBuilder()
                        .removeHeader("Authorization")
                        .addHeader("Authorization", "Bearer $newToken")
                        .build()

        return null
    }

    private fun responseCount(response: Response?): Int {
        var result = 1
        while (response?.priorResponse() != null) result++
        return result
    }

}

这是改装有趣的电话

    override suspend fun getCharacter() = safeApiCall(moshiConverter) {
        myApi.getCharacter()
    }

这是safeApiCall

suspend fun <T> safeApiCall(
    moshiConverter: MoshiConverter,
    apiCall: suspend () -> Response<T>
): Result<T?, ResultError.NetworkError> {
    return try {
        val response = apiCall()
        if (response.isSuccessful) Result.Success(response.body())
        else {
            val errorBody = response.errorBody()
            val errorBodyResponse = if (errorBody != null) {
                moshiConverter.fromJsonObject(errorBody.string(), ErrorBodyResponse::class.java)
            } else null

            Result.Error(
                ResultError.NetworkError(
                    httpCode = response.code(),
                    httpMessage = response.message(),
                    serverCode = errorBodyResponse?.code,
                    serverMessage = errorBodyResponse?.message
                )
            )
        }
    } catch (exception: Exception) {
        Result.Error(ResultError.NetworkError(-1, exception.message))
    }
}

Authenticator 工作正常,尝试刷新令牌两次然后放弃。问题是:当它放弃时(返回null),retrofit(safeApiCall函数)的执行不会继续。如果通话成功与否,我没有任何反馈。

使用 Authenticator 和 Coroutines 有什么问题suspend fun吗?

4

2 回答 2

3

这不是无限循环吗?

while (response?.priorResponse() != null)

难道不应该

var curResponse: Response? = response
while (curResponse?.priorResponse() != null) {
    result++
    curResponse = curResponse.priorResponse()
}
于 2019-12-11T17:48:29.773 回答
-4

删除挂起尝试以下代码

fun getCharacter(): Response<CharacterResponse>
于 2019-12-11T17:06:11.037 回答