Didit C# 与 .NET SDK：KYC、AML 与交易集成

dotnet add package Didit

using System;
using Didit;

using var client = new DiditClient(new DiditClientOptions
{
    ApiKey = Environment.GetEnvironmentVariable("DIDIT_API_KEY"),
    OrganizationId = Environment.GetEnvironmentVariable("DIDIT_ORGANIZATION_ID"),
    ApplicationId = Environment.GetEnvironmentVariable("DIDIT_APPLICATION_ID"),
    Timeout = TimeSpan.FromSeconds(30),
    MaxRetries = 2,
});

// Options for a single call.
var decision = await client.Sessions.RetrieveDecisionAsync(
    "11111111-2222-3333-4444-555555555555",
    requestOptions: new RequestOptions { Timeout = TimeSpan.FromSeconds(5), MaxRetries = 0 });
Console.WriteLine(decision.Status);

using System;
using Didit;

using var client = new DiditClient();

var session = await client.Sessions.CreateAsync(new SessionsCreateParams
{
    WorkflowId = "11111111-2222-3333-4444-555555555555",
    VendorData = "user-123",
    Callback = "https://example.com/verification/done",
});
Console.WriteLine(session.Url);

using System;
using Didit;

using var client = new DiditClient();

var decision = await client.Sessions.RetrieveDecisionAsync("11111111-2222-3333-4444-555555555555");
Console.WriteLine(decision.Status);
foreach (var verification in decision.IdVerifications ?? Array.Empty<SessionDecisionIdVerifications>())
{
    Console.WriteLine(verification.Status);
}

using System;
using Didit;

var secret = Environment.GetEnvironmentVariable("DIDIT_WEBHOOK_SECRET") ?? "";

int HandleWebhook(string rawBody, Func<string, string?> header)
{
    try
    {
        var evt = DiditWebhooks.Verify(rawBody, header, secret);
        if (evt is SessionStatusUpdatedEvent updated)
        {
            Console.WriteLine($"{updated.SessionId} {updated.Status}");
        }
        return 200;
    }
    catch (WebhookVerificationException error)
    {
        Console.WriteLine($"rejected: {error.Reason}");
        return 400;
    }
}

using System;
using Didit;

using var client = new DiditClient();

var transaction = await client.Transactions.CreateAsync(new TransactionsCreateParams
{
    TransactionId = "txn-1001",
    TransactionCategory = "finance",
    TransactionDetails = new()
    {
        Direction = "outbound",
        Amount = 1500,
        Currency = "EUR",
    },
    Subject = new()
    {
        EntityType = "individual",
        VendorData = "user-123",
        FullName = "Maria Garcia",
    },
});
Console.WriteLine($"{transaction.Status} {transaction.Score}");

using System;
using System.Threading.Tasks;
using Didit;

// The publishable key (pk_live_... or pk_test_...) carries your issuer URL.
var auth = Authentication.FromPublishableKey("pk_live_...");

async Task<string?> CurrentUserAsync(string accessToken)
{
    try
    {
        var claims = await auth.VerifyAccessTokenAsync(accessToken, audience: "your-application-id");
        return claims.Subject;
    }
    catch (TokenVerificationException error)
    {
        Console.WriteLine($"rejected: {error.Reason}");
        return null;
    }
}

using System;
using Didit;

using var client = new DiditClient();

try
{
    await client.Sessions.RetrieveDecisionAsync("11111111-2222-3333-4444-555555555555");
}
catch (NotFoundException)
{
    Console.WriteLine("no such session");
}
catch (ApiStatusException error)
{
    Console.WriteLine($"{error.StatusCode} {error.RequestId}");
}

using System;
using Didit;

using var client = new DiditClient();

// Lists page through every result.
await foreach (var session in await client.Sessions.ListAsync(new SessionsListParams { Status = "Approved" }))
{
    Console.WriteLine(session.SessionId);
}

// Uploads take FileUpload.FromPath, FromBytes or FromStream.
var result = await client.IdVerification.VerifyAsync(new IdVerificationVerifyParams
{
    FrontImage = FileUpload.FromPath("id-front.jpg"),
    BackImage = FileUpload.FromPath("id-back.jpg"),
});
Console.WriteLine(result.IdVerification?.Status);