🔍 Code Review: Solid Multi-RP Client WebID Integration

🎯 Summary

Perfect integration enhancement! This PR adds WebID scope to the default client configuration, ensuring that Solid applications automatically request WebID claims during authentication without requiring manual scope configuration.

✅ What's Working Well

Default Scope Enhancement (src/multi-rp-client.js):

// ✅ WebID scope added to defaults
config.scope = config.scope || 'openid profile webid'
//                                              ^^^^^
//                                      New WebID scope support

🎯 Strategic Impact

Before this change:

// Applications had to explicitly request webid scope
const client = new MultiRpClient({
  scope: 'openid profile webid'  // Manual configuration required
})

After this change:

// WebID scope automatically included
const client = new MultiRpClient({
  // webid scope included by default! 🎉
})

📋 Solid OIDC Integration

This enhancement provides seamless Solid ecosystem integration:

🔄 Multi-Client Workflow

Perfect integration with the broader WebID implementation:

graph LR
    A[MultiRpClient] -->|requests 'webid' scope| B[oidc-op]
    B -->|issues WebID claims| C[ID Token]
    C -->|parsed by| D[oidc-rp]
    D -->|provides| E[session.webid]

🧪 Usage Scenarios

Scenario 1: Default Solid App

const multiClient = new MultiRpClient()
// Automatically requests: 'openid profile webid'

Scenario 2: Custom Scope Override

const multiClient = new MultiRpClient({
  scope: 'openid email'  // WebID not needed for this app
})

Scenario 3: Extended Scopes

const multiClient = new MultiRpClient({
  scope: 'openid profile webid custom-scope'  // Additional scopes
})

💡 Developer Experience

Benefits for Solid developers:

• ✅ Zero configuration WebID support
• ✅ Automatic compliance with Solid OIDC patterns
• ✅ Consistent behavior across Solid applications
• ✅ Easy customization when needed

🚀 Ecosystem Impact

This change enables:

• Faster Solid app development - WebID works out of the box
• Consistent user experience - All Solid apps get WebID by default
• Reduced support burden - Fewer configuration issues
• Solid standard adoption - Makes WebID the default, not optional

📦 Integration Testing

Test with the complete flow:

// 1. MultiRpClient requests 'openid profile webid' scope
const client = new MultiRpClient()

// 2. oidc-op issues WebID claims in ID token
// 3. oidc-rp parses WebID claims
// 4. Application accesses session.webid

💡 Recommendations

1. Ready to merge - Simple, high-impact change
2. Update documentation - Highlight automatic WebID support
3. Test edge cases - Ensure scope override works correctly
4. Consider migration guide - Help existing apps understand the change

LGTM 🎉 - This makes WebID support truly seamless for Solid applications!

Reviewed the add-webid branch change adding WebID to default client scopes.

Files analyzed:

• src/multi-rp-client.js - Default scope configuration with WebID
• package-lock.json - Dependency updates

Branch: add-webid
Purpose: Enable automatic WebID scope requests for Solid applicationsroot@DESKTOP-PIRJOCS:/mnt/d/github/solidos/work