Smp.Core.Encompass 2.0.3

Smp.Core.Encompass

A .NET client library for the Encompass API by ICE Mortgage Technology. Provides strongly-typed access to loan data, pipeline queries, document management, user administration, and more with built-in OAuth2 authentication, token caching, rate limiting, and automatic retry on 401 responses.

Installation

Install via NuGet:

dotnet add package Smp.Core.Encompass

Quick Start

1. Configure

Add an Encompass section to your appsettings.json:

{
  "Encompass": {
    "Username": "api_user",
    "Password": "your_password",
    "InstanceId": "BE11200822",
    "ClientId": "your_client_id",
    "ClientSecret": "your_client_secret",
    "TokenLifetime": "00:50:00",
    "RateLimit": {
      "TokenLimit": 20,
      "ReplenishmentPeriod": "00:00:01",
      "TokensPerPeriod": 20,
      "QueueLimit": 100
    }
  }
}

2. Register Services

Choose one of the registration patterns below based on your configuration needs.

Default Configuration (Configuration Section)

Use this pattern when all settings are in your configuration file:

builder.Services.AddEncompassClient();

Custom Configuration Section

Use this pattern if your Encompass configuration is under a different section path:

// For configuration at "Services:Encompass"
builder.Services.AddEncompassClient("Services:Encompass");

Inline/Programmatic Configuration

Use this pattern for fully programmatic configuration, useful in testing:

builder.Services.AddEncompassClient(options =>
{
    options.Username = Environment.GetEnvironmentVariable("ENCOMPASS_USERNAME")!;
    options.Password = Environment.GetEnvironmentVariable("ENCOMPASS_PASSWORD")!;
    options.InstanceId = "BE11200822";
    options.ClientId = Environment.GetEnvironmentVariable("ENCOMPASS_CLIENT_ID")!;
    options.ClientSecret = Environment.GetEnvironmentVariable("ENCOMPASS_CLIENT_SECRET")!;
});

Hybrid Configuration (Configuration + Override)

Use this pattern when you want to bind most settings from configuration but override sensitive values from secure sources like Azure Key Vault:

// appsettings.json has: Username, InstanceId, ClientId
builder.Services.AddEncompassClient("Encompass", async options =>
{
    // Override sensitive values from Key Vault
    var keyVaultUri = new Uri(builder.Configuration["KeyVault:Uri"]!);
    var credential = new DefaultAzureCredential();
    var client = new SecretClient(keyVaultUri, credential);
    
    options.Password = (await client.GetSecretAsync("EncompassPassword")).Value.Value;
    options.ClientSecret = (await client.GetSecretAsync("EncompassClientSecret")).Value.Value;
});

Custom HttpClient Configuration

Use this pattern to customize the underlying HttpClient (timeouts, headers, etc.):

builder.Services.AddEncompassClient(httpClient =>
{
    httpClient.Timeout = TimeSpan.FromSeconds(60);
    httpClient.DefaultRequestHeaders.Add("User-Agent", "MyApp/1.0");
});

3. Use the Client

Inject IEncompassClient into your services:

public class LoanService(IEncompassClient encompassClient)
{
    public async Task<string> GetLoanAsync(string loanGuid)
    {
        return await encompassClient.Loans.GetLoanRawAsync(loanGuid);
    }
}

API Reference

The EncompassClient exposes the following sub-clients:

Loans

Read and write loan data, field values, and disclosure tracking logs.

// Get raw loan JSON
string loanJson = await client.Loans.GetLoanRawAsync(loanGuid);

// Read specific fields
var fields = await client.Loans.FieldReaderAsync(loanGuid, ["4000", "1109"]);

// Write field values
await client.Loans.FieldWriterAsync(loanGuid, [
    new FieldValue { Id = "CX.CUSTOM.FIELD", Value = "NewValue" }
]);

// Get disclosure tracking logs
var logs = await client.Loans.GetDisclosureTrackingLogsAsync(loanGuid);

// Get loan associates
string associates = await client.Loans.GetLoanAssociatesRawAsync(loanGuid);

Loan Pipeline

Query and search the loan pipeline with filters, field selection, and pagination.

// Find a loan GUID by loan number
string guid = await client.LoanPipeline.FindLoanGuidByLoanNumberAsync("1234567890");

// Query the pipeline with filters
var items = await client.LoanPipeline.GetAllPipelineItemsAsync(new LoanPipelineQuery
{
    Fields = ["Loan.LoanNumber", "Loan.BorrowerName"],
    Filter = new Filter
    {
        Operator = "and",
        Terms =
        [
            new Filter { CanonicalName = "Loan.LoanFolder", Value = "My Pipeline", MatchType = "Exact" },
            new Filter { CanonicalName = "Loan.DateCreated", Value = "2024-01-01", MatchType = "GreaterThan" }
        ]
    }
});

// Paginated access
var page = await client.LoanPipeline.GetPipelinePageAsync(new LoanPipelineRequest
{
    LoanPipelineQuery = query,
    Start = 0
});

Documents

Retrieve loan document stacking order using Encompass stacking templates.

var stackingDocs = await client.Documents.GetLoanStackingDocumentsAsync(
    new LoanStackingDocumentsRequest
    {
        Loan = new Entity { EntityId = loanGuid, EntityType = "urn:elli:encompass:loan" },
        StackingTemplate = new Entity { EntityId = templateId }
    });

// Get all attachment IDs from the stacking order
var attachmentIds = stackingDocs.GetAttachmentIds();

Export Jobs

Create, monitor, and download eFolder export jobs.

// Create an export job
var job = await client.ExportJobs.CreateExportJobAsync(new ExportJobRequest
{
    Source = new Entity { EntityId = loanGuid, EntityType = "urn:elli:encompass:loan" },
    Entities = attachmentIds.Select(id => new Entity { EntityId = id }).ToList()
});

// Check status
var status = await client.ExportJobs.GetExportJobStatusAsync(job.JobId!);

// Download the file
using var stream = await client.ExportJobs.DownloadExportJobAsync(job.JobId!);

Users

Query and retrieve Encompass user accounts.

// Get all users
var allUsers = await client.Users.GetAllUsersAsync();

// Get a single user
var user = await client.Users.GetUserAsync("userId");

// Get multiple users by ID
var users = await client.Users.GetUsersByIdsAsync(["user1", "user2"]);

// Paginated access
var page = await client.Users.GetUsersPageAsync(start: 0, limit: 50);

Custom Data Objects

Manage custom data objects (CDOs) at the company, user, or loan level.

// List CDO names
var names = await client.CustomDataObjects.GetCustomDataObjectListAsync(CustomDataObjectTypes.Company);

// Get a CDO
var cdo = await client.CustomDataObjects.GetCustomDataObjectAsync(
    CustomDataObjectTypes.Loans, "MyCdo", entityId: loanGuid);

// Upsert a CDO from an object (auto-serialized to JSON and Base64-encoded)
await client.CustomDataObjects.UpsertCustomDataObjectAsync(
    CustomDataObjectTypes.Loans, "MyCdo", myObject, entityId: loanGuid);

// Delete a CDO
await client.CustomDataObjects.DeleteCustomDataObjectAsync(
    CustomDataObjectTypes.Company, "OldCdo");

Loan Batch Update

Apply field updates to multiple loans in a single batch operation.

// Batch update by loan GUIDs
var jobId = await client.LoanBatchUpdate.CreateBatchUpdateJobAsync(
    new LoanBatchUpdateRequest(
        loanGuids: ["guid1", "guid2"],
        jsonLoanData: """{"applications":[{"borrower":{"fullName":"Test"}}]}"""));

// Check batch update status
var status = await client.LoanBatchUpdate.GetBatchUpdateJobStatusAsync(jobId);

Settings

Retrieve Encompass system settings.

// Get all document stacking templates
var templates = await client.Settings.GetAllDocumentStackingTemplatesAsync();

// Get all eFolder document definitions
var docs = await client.Settings.GetAllEFolderDocumentsAsync();

Resource Locks

Manage exclusive locks on loans for safe concurrent access.

// Lock a loan
var resourceLock = await client.ResourceLocks.LockLoanAsync(loanGuid);

// Unlock by lock ID
await client.ResourceLocks.UnlockLoanAsync(resourceLock.Id!, loanGuid);

// Or unlock all locks on a loan
await client.ResourceLocks.UnlockLoanAsync(loanGuid);

// Check active locks
var locks = await client.ResourceLocks.GetResourceLocksAsync(loanGuid);

Configuration Options

EncompassClientOptions

RateLimitOptions

Uses a token bucket algorithm for client-side rate limiting.

Key Features

• OAuth2 Authentication - Automatic token acquisition, caching, and refresh with thread-safe semaphore protection
• Automatic 401 Retry - Transparently refreshes expired tokens and retries failed requests
• Rate Limiting - Built-in token bucket rate limiter to stay within API call limits
• Pagination - Automatic iteration through all pages with GetAll*Async methods, or manual control with Get*PageAsync methods
• Dependency Injection - Single-line registration via AddEncompassClient() with options validation on startup

Requirements

• .NET 10.0+

Testing & Mocking

The library interfaces support dependency injection, making it easy to mock in unit tests:

Testing with Moq

using Moq;
using Xunit;

[Fact]
public async Task GetLoanAsync_WithMockedClient_ReturnsExpectedJson()
{
    // Arrange
    var mockEncompassClient = new Mock<IEncompassClient>();
    var mockLoans = new Mock<ILoans>();
    
    var expectedJson = """{"loanNumber":"123456","borrowerName":"John Doe"}""";
    mockLoans.Setup(l => l.GetLoanRawAsync("test-guid", null, default))
        .ReturnsAsync(expectedJson);
    
    mockEncompassClient.Setup(c => c.Loans).Returns(mockLoans.Object);
    
    var loanService = new LoanService(mockEncompassClient.Object);
    
    // Act
    var result = await loanService.GetLoanAsync("test-guid");
    
    // Assert
    Assert.Equal(expectedJson, result);
    mockLoans.Verify(l => l.GetLoanRawAsync("test-guid", null, default), Times.Once);
}

Testing with NSubstitute

using NSubstitute;
using Xunit;

[Fact]
public async Task GetUserAsync_WithMockedClient_ReturnsExpectedUser()
{
    // Arrange
    var mockEncompassClient = Substitute.For<IEncompassClient>();
    var mockUsers = Substitute.For<IUsers>();
    
    var expectedUser = new User { Id = "user123", Name = "Jane Smith" };
    mockUsers.GetUserAsync("user123", default).Returns(Task.FromResult(expectedUser));
    
    mockEncompassClient.Users.Returns(mockUsers);
    
    var userService = new UserService(mockEncompassClient);
    
    // Act
    var result = await userService.GetUserAsync("user123");
    
    // Assert
    Assert.Equal(expectedUser.Id, result.Id);
    await mockUsers.Received(1).GetUserAsync("user123", default);
}

Injecting Mocks in Dependency Injection

using Microsoft.Extensions.DependencyInjection;
using Moq;

[Fact]
public async Task Service_WithMockedDependencies()
{
    // Arrange
    var services = new ServiceCollection();
    
    var mockEncompassClient = new Mock<IEncompassClient>();
    mockEncompassClient.Setup(c => c.LoanPipeline.FindLoanGuidByLoanNumberAsync("1234567890", default))
        .ReturnsAsync("loan-guid-123");
    
    services.AddScoped(_ => mockEncompassClient.Object);
    services.AddScoped<ILoanService, LoanService>();
    
    var provider = services.BuildServiceProvider();
    var loanService = provider.GetRequiredService<ILoanService>();
    
    // Act
    var result = await loanService.FindLoanAsync("1234567890");
    
    // Assert
    Assert.NotNull(result);
}

Interface Contracts

All sub-clients are accessible through their respective interfaces:

• IAuthenticationClient - Token management
• ILoans - Loan data and field operations
• ILoanPipeline - Pipeline querying and search
• IDocuments - Document stacking
• IExportJobs - eFolder exports
• IUsers - User queries
• ICustomDataObjects - CDO management
• ILoanBatchUpdate - Batch operations
• ISettings - System settings retrieval
• IResourceLocks - Loan locking mechanisms