eIDAS REST Server

The eIDAS REST Server is part of VDX (Verifiable Data Exchange), providing enterprise deployment with multi-database persistence.

For server documentation, see:

• VDX eIDAS Overview - Architecture and concepts
• VDX eIDAS Server API - REST API reference

Architecture

The eIDAS functionality is split between EDK and VDX:

Component	Location	Description
Signature Client	EDK	Core signing commands with DI integration
DSS Provider	EDK	Local in-process signing using EU DSS library
REST Client	EDK	HTTP client implementing SignatureProvider
REST Server	VDX	Full REST server with persistence

This separation enables:

• Mobile apps: Use REST client to delegate signing to a server
• Desktop apps: Use DSS provider for local in-process signing
• Hybrid: Create digest locally, sign remotely, complete locally

Using the REST Client

To call a VDX eIDAS server from your application, use the EDK REST client:

dependencies {
    implementation("com.sphereon.edk:lib-eidas-signature-client-impl:0.13.0")
    implementation("com.sphereon.edk:lib-eidas-signature-rest-client:0.13.0")
}

Configure the client to point to your VDX server:

@Inject
@SingleIn(AppScope::class)
@ContributesBinding(AppScope::class)
class MyRestSignatureConfig : RestSignatureClientConfig {
    override val baseUrl: String = "https://my-vdx-server.example.com/api/v1"
    override val defaultConfigId: String = "pdf-lt-config"
}

See Client API for complete usage documentation.