Deucarian Object Loading API Bridge

Overview

com.deucarian.object-loading.api-bridge is an optional UPM package that adapts API to Deucarian Object Loading.

The core com.deucarian.object-loading package has no API dependency. Use this bridge only when downloads should go through API request handling.

What It Does

• Implements IObjectDownloader as ApiObjectDownloader.
• Converts ObjectLoadRequest URL, headers, bearer token, timeout, and cancellation into an API ApiRequest.
• Requests ApiResponseFormat.Bytes.
• Maps ApiResult<byte[]> back to ObjectDownloadResult.
• Maps API errors to ObjectLoadError.
• Keeps auth token passing explicit through ObjectLoadRequest.BearerToken, Authorization: Bearer ..., or an explicitly composed API client.

What It Does Not Do

• No Session dependency.
• No backend URL resolving.
• No backend DTOs.
• No glTF loading.
• No Addressables integration.
• No caching policy.
• No material remapping.

Backend URL resolving remains outside this bridge. Resolve the final URL elsewhere, then pass it into ObjectLoadRequest.

Installation

Install this bridge after installing its dependencies:

• com.deucarian.object-loading
• com.deucarian.api

The package depends on com.deucarian.object-loading 0.4.1, com.deucarian.api 1.0.0, and Unity's Newtonsoft Json package 3.2.2.

Usage

using Deucarian.ObjectLoading;
using Deucarian.ObjectLoading.APIBridge;

ObjectLoadingPipeline pipeline = new ObjectLoadingPipeline(
    new DirectUrlSourceResolver(),
    new ApiObjectDownloader(),
    new AssetBundleContentLoader(),
    new AssetBundleObjectInstantiator(),
    new DefaultObjectDiagnostics());

ObjectLoadRequest request = ObjectLoadRequest.FromUrl(assetBundleUrl);
request.BearerToken = accessToken;
request.AddHeader("X-Custom-Header", "value");

For explicit composition and tests, pass your own API client:

ApiObjectDownloader downloader = new ApiObjectDownloader(apiClient);

Auth And Headers

ObjectLoadRequest.BearerToken becomes ApiRequest.BearerTokenOverride.

An explicit Authorization: Bearer ... header is also parsed into BearerTokenOverride. Other headers are forwarded unchanged.

ApiObjectDownloadMapper.CreateDebugSnapshotJson(...) redacts bearer tokens and sensitive headers.

Samples

Import the API Downloader Sample from Unity's Package Manager to see ApiObjectDownloader composed into an ObjectLoadingPipeline.

Tests

Run the package's EditMode tests in Unity. Tests cover auth/header forwarding, byte-result mapping, error mapping, and debug redaction.

License

See LICENSE.md.