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Updated on 2026-08-14

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Tangem 2020-06-15 19:29:49 +03:00
parent d8f9a85560
commit 1c82ef2c7b
12 changed files with 332 additions and 57 deletions
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40
server-android/src/main/java/com/tangem/server_android/NetworkUtils.kt Normal file
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@ -0,0 +1,40 @@
package com.tangem.server_android
import kotlinx.coroutines.delay
import java.io.IOException
suspend fun <T> retryIO(
times: Int = 3,
initialDelay: Long = 100,
maxDelay: Long = 1000,
factor: Double = 2.0,
block: suspend () -> T): T
{
var currentDelay = initialDelay
repeat(times - 1) {
try {
return block()
} catch (e: IOException) {
// you can log an error here and/or make a more finer-grained
// analysis of the cause to see if retry is needed
}
delay(currentDelay)
currentDelay = (currentDelay * factor).toLong().coerceAtMost(maxDelay)
}
return block()
}
sealed class Result<out T> {
data class Success<out T>(val data: T) : Result<T>()
data class Failure(val error: Throwable?) : Result<Nothing>()
}
suspend fun <T>performRequest(block: suspend () -> T): Result<T> {
return try {
val result = retryIO { block() }
Result.Success(result)
} catch (exception: Exception) {
Result.Failure(exception)
}
}

49
server-android/src/main/java/com/tangem/server_android/PayIdService.kt Normal file
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@ -0,0 +1,49 @@
package com.tangem.server_android
import okhttp3.OkHttpClient
import okhttp3.logging.HttpLoggingInterceptor
import retrofit2.Retrofit
import retrofit2.converter.gson.GsonConverterFactory
class PayIdService {
private val tangemApi: TangemApi by lazy {
provideRetrofit()
.create(TangemApi::class.java)
}
suspend fun getPayId(cardId: String, publicKey: String): Result<PayIdResponse> {
return performRequest { tangemApi.getPayId(cardId, publicKey) }
}
suspend fun setPayId(cardId: String, publicKey: String, payId: String, address: String, network: String): Result<SetPayIdResponse> {
return performRequest { tangemApi.setPayId(cardId, publicKey, payId, address, network) }
}
}
data class PayIdResponse(
val payId: String
)
data class SetPayIdResponse(
val success: Boolean
)
fun provideRetrofit(): Retrofit {
val builder = Retrofit.Builder()
.baseUrl("https://tangem.com/")
.addConverterFactory(GsonConverterFactory.create())
if (BuildConfig.DEBUG)
builder.client(createOkHttpClient())
return builder.build()
}
private fun createOkHttpClient(): OkHttpClient {
return OkHttpClient.Builder().addInterceptor(createHttpLoggingInterceptor()).build()
}
private fun createHttpLoggingInterceptor(): HttpLoggingInterceptor {
val logging = HttpLoggingInterceptor()
logging.level = HttpLoggingInterceptor.Level.BODY
return logging
}

1
server-android/src/main/java/com/tangem/server_android/Server.java
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@ -12,6 +12,7 @@ public class Server {
static final String VERIFY = URL_TANGEM + "verify";
static final String VERIFY_AND_GET_INFO = URL_TANGEM + "card/verify-and-get-info";
static final String ARTWORK = URL_TANGEM + "card/artwork";
static final String PAY_ID = ServerURL.API_PAY_ID_TANGEM;
}
}
}

1
server-android/src/main/java/com/tangem/server_android/ServerURL.java
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@ -2,4 +2,5 @@ package com.tangem.server_android;
class ServerURL {
static final String API_TANGEM = "https://verify.tangem.com/";
static final String API_PAY_ID_TANGEM = "https://payid.tangem.com/";
}

21
server-android/src/main/java/com/tangem/server_android/TangemApi.java
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@ -1,21 +0,0 @@
package com.tangem.server_android;
import com.tangem.server_android.model.CardVerifyAndGetInfo;
import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.http.Body;
import retrofit2.http.GET;
import retrofit2.http.Headers;
import retrofit2.http.POST;
import retrofit2.http.Query;
public interface TangemApi {
@Headers("Content-Type: application/json")
@POST(Server.ApiTangem.Method.VERIFY_AND_GET_INFO)
Call<CardVerifyAndGetInfo.Response> getCardVerifyAndGetInfo(@Body CardVerifyAndGetInfo.Request requestBody);
@GET(Server.ApiTangem.Method.ARTWORK)
Call<ResponseBody> getArtwork(@Query("artworkId") String artworkId, @Query("CID") String CID, @Query("publicKey") String publicKey);
}

35
server-android/src/main/java/com/tangem/server_android/TangemApi.kt Normal file
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@ -0,0 +1,35 @@
package com.tangem.server_android
import com.tangem.server_android.model.CardVerifyAndGetInfo
import okhttp3.ResponseBody
import retrofit2.Call
import retrofit2.http.*
interface TangemApi {
@Headers("Content-Type: application/json")
@POST(Server.ApiTangem.Method.VERIFY_AND_GET_INFO)
fun getCardVerifyAndGetInfo(@Body requestBody: CardVerifyAndGetInfo.Request?): Call<CardVerifyAndGetInfo.Response>
@GET(Server.ApiTangem.Method.ARTWORK)
fun getArtwork(
@Query("artworkId") artworkId: String?,
@Query("CID") CID: String?,
@Query("publicKey") publicKey: String?
): Call<ResponseBody>
@GET(Server.ApiTangem.Method.PAY_ID)
suspend fun getPayId(
@Query("cid") cardId: String,
@Query("key") publicKey: String
): PayIdResponse
@POST(Server.ApiTangem.Method.PAY_ID)
suspend fun setPayId(
@Query("cid") cardId: String,
@Query("key") publicKey: String,
@Query("payid") payId: String,
@Query("address") address: String,
@Query("network") network: String
): SetPayIdResponse
}