I faced this issue when I tried to migrate my network calls from "com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter" to builtin retrofit 2.6 suspend function.
Scenario, I am making multiple sequential network calls to fetch data from APIs. My first call succeeded without any problem but for the second retrofit call. It gives me the below error.
Changes that I made in my code,
- Removed the adapter library from app.gradle and update my retrofit to 2.7.
- Removed the await() call execution line and added "suspend" function in the retrofit interface method.
- Removed the Deferred variable retrofit interface method.
My Logcat console
2020-02-26 17:08:19.777 E: FATAL EXCEPTION: OkHttp Dispatcher
Process: com.chilindo, PID: 22114
java.lang.IllegalStateException: cannot make a new request because the previous response is still open: please call response.close()
at okhttp3.internal.connection.Transmitter.newExchange$okhttp(Transmitter.kt:157)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:35)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:82)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:84)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:71)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at com.chilindo.base.network.ChilindoAPIL$Companion$invoke$$inlined$-addInterceptor$1.intercept(Interceptor.kt:144)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.kt:219)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.kt:194)
at okhttp3.RealCall$AsyncCall.run(RealCall.kt:138)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)
After retrofit 2.6
override suspend fun fetchUserProfile() {
try {
val result = chilindoAPI.fetchProfile()
if (result.isSuccessful) {
_userProfileTable.postValue(result.body())
}
} catch (e: HttpExceptionExtended) {
e.printStackTrace()
} catch (e: NoConnectivityException) {
e.printStackTrace()
}
}
override suspend fun fetchCategoriesResponse(domain: String, language: String) {
try {
val categoriesRequest = CategoriesRequest()
categoriesRequest.countryName = domain
categoriesRequest.language = language
val result = chilindoAPI.fetchCategories(categoriesRequest)
if (result.isSuccessful) {
_categoriesResponse.postValue(result.body())
}
} catch (e: HttpExceptionExtended) {
e.printStackTrace()
_categoriesResponse.postValue(null)
} catch (e: NoConnectivityException) {
e.printStackTrace()
}
}
and API Interface
@POST(ServiceTypes.USER_PROFILE)
suspend fun fetchProfile(): Response<UserProfileTable>
@POST(ServiceTypes.CATEGORIES)
suspend fun fetchCategories(@Body categoriesRequest: CategoriesRequest): Response<List<CategoriesResponse>>
