Created
July 18, 2022 06:19
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Android : Mock Response with Retrofit & OkHttp
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class LoginInterceptor: Interceptor{ | |
override fun intercept(chain: Interceptor.Chain): Response { | |
//If requested endpoint matched to targeted endpoint, we will return an mocked response. | |
if (chain.request().url.toUri().toString().endsWith("fake-login")) { | |
val responseString = "OUR_JSON_RESPONSE_FROM_ASSET_OR_OTHER_SOURCE" | |
return chain.proceed(chain.request()) | |
.newBuilder() | |
.code(200) | |
.protocol(Protocol.HTTP_2) | |
.message(responseString) | |
.body( | |
responseString | |
.toByteArray() | |
.toResponseBody( | |
"application/json".toMediaTypeOrNull() | |
) | |
) | |
.addHeader("content-type", "application/json") | |
.build() | |
} else { | |
//Skip the interception. | |
return chain.proceed(chain.request()) | |
} | |
} | |
} | |
object RetrofitProvider { | |
//Return a lazy instance of OkHttp client | |
private val myHttpClient: OkHttpClient by lazy { | |
val ins = OkHttpClient().newBuilder() | |
.connectTimeout(1, TimeUnit.MINUTES) | |
.readTimeout(1, TimeUnit.MINUTES) | |
.writeTimeout(1, TimeUnit.MINUTES) | |
.retryOnConnectionFailure(true) | |
//Adding our LoginInterceptor only on Debug mode only | |
if (BuildConfig.DEBUG){ | |
ins.addInterceptor(LoginInterceptor()) | |
} | |
ins.build() | |
} | |
//Public access point for Mock API Service | |
fun getMockAPI(): MockAPIEndpoint = retrofitInstance.create(MockAPIEndpoint::class.java) | |
//Return a lazy Retrofit instance | |
private val retrofitInstance: Retrofit by lazy { | |
Retrofit.Builder() | |
.baseUrl("https://rommansabbir/api/v2/") | |
.client(myHttpClient) | |
.build() | |
} | |
} |
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