Didit Java 与 Kotlin SDK：KYC、AML 与交易

import java.time.Duration;
import me.didit.Didit;
import me.didit.core.RequestOptions;
import me.didit.types.SessionsRetrieveDecisionParams;

Didit client = Didit.builder()
        .apiKey(System.getenv("DIDIT_API_KEY"))
        .organizationId(System.getenv("DIDIT_ORGANIZATION_ID"))
        .applicationId(System.getenv("DIDIT_APPLICATION_ID"))
        .timeout(Duration.ofSeconds(30))
        .maxRetries(2)
        .build();

// Options for a single call.
var decision = client.sessions().retrieveDecision("11111111-2222-3333-4444-555555555555",
        SessionsRetrieveDecisionParams.builder().build(),
        RequestOptions.builder().timeout(Duration.ofSeconds(5)).build());
System.out.println(decision.status().orElse(null));

import me.didit.Didit;
import me.didit.types.SessionsCreateParams;

Didit client = new Didit();

var session = client.sessions().create(SessionsCreateParams.builder()
        .workflowId("11111111-2222-3333-4444-555555555555")
        .vendorData("user-123")
        .callback("https://example.com/verification/done")
        .build());
System.out.println(session.url());

import java.util.List;
import me.didit.Didit;

Didit client = new Didit();

var decision = client.sessions().retrieveDecision("11111111-2222-3333-4444-555555555555");
decision.status().ifPresent(status -> System.out.println(status));
for (var verification : decision.idVerifications().orElse(List.of())) {
    System.out.println(verification.status().orElse(null));
}

import java.util.Map;
import me.didit.errors.WebhookVerificationException;
import me.didit.webhooks.SessionStatusUpdatedEvent;
import me.didit.webhooks.WebhookEvent;
import me.didit.webhooks.Webhooks;

public class DiditWebhookHandler {
    private final String secret = System.getenv("DIDIT_WEBHOOK_SECRET");

    public int handle(byte[] rawBody, Map<String, String> headers) {
        WebhookEvent event;
        try {
            event = Webhooks.verify(rawBody, headers, secret);
        } catch (WebhookVerificationException e) {
            System.out.println("rejected: " + e.reason());
            return 400;
        }
        if (event instanceof SessionStatusUpdatedEvent) {
            SessionStatusUpdatedEvent updated = (SessionStatusUpdatedEvent) event;
            System.out.println(updated.sessionId().orElse("") + " " + updated.status().orElse(""));
        }
        return 200;
    }
}

import me.didit.Didit;
import me.didit.types.TransactionsCreateParams;

Didit client = new Didit();

var transaction = client.transactions().create(TransactionsCreateParams.builder()
        .transactionId("txn-1001")
        .transactionCategory(TransactionsCreateParams.TransactionCategory.of("finance"))
        .transactionDetails(TransactionsCreateParams.TransactionDetails.builder()
                .direction(TransactionsCreateParams.TransactionDetails.Direction.of("outbound"))
                .amount(1500.0)
                .currency("EUR")
                .build())
        .subject(TransactionsCreateParams.Subject.builder()
                .entityType("individual")
                .vendorData("user-123")
                .fullName("Maria Garcia")
                .build())
        .build());
System.out.println(transaction.status().orElse(null) + " " + transaction.score().orElse(null));

import me.didit.authentication.AccessTokenClaims;
import me.didit.authentication.Authentication;
import me.didit.errors.TokenVerificationException;

public class CurrentUser {
    // The publishable key (pk_live_... or pk_test_...) carries your issuer URL.
    private final Authentication auth = Authentication.builder()
            .publishableKey("pk_live_...")
            .clientId("your-application-id")
            .build();

    public String subject(String accessToken) {
        try {
            AccessTokenClaims claims = auth.verifyAccessToken(accessToken);
            return claims.subject();
        } catch (TokenVerificationException e) {
            System.out.println("rejected: " + e.reason());
            return null;
        }
    }
}

import me.didit.Didit;
import me.didit.errors.ApiStatusException;
import me.didit.errors.NotFoundException;

Didit client = new Didit();

try {
    client.sessions().retrieveDecision("11111111-2222-3333-4444-555555555555");
} catch (NotFoundException e) {
    System.out.println("no such session");
} catch (ApiStatusException e) {
    System.out.println(e.statusCode() + " " + e.requestId().orElse(""));
}

import java.nio.file.Path;
import me.didit.Didit;
import me.didit.types.IdVerificationVerifyParams;
import me.didit.types.SessionsListParams;

Didit client = new Didit();

// Lists page through every result.
for (var session : client.sessions().list(SessionsListParams.builder().status("Approved").build())) {
    System.out.println(session);
}

// Uploads take a Path or a FileUpload (bytes or a stream).
var result = client.idVerification().verify(IdVerificationVerifyParams.builder()
        .frontImage(Path.of("id-front.jpg"))
        .backImage(Path.of("id-back.jpg"))
        .build());
System.out.println(result);