Add Datasource

Add Data Source to Code App

Add Dataverse tables or Power Platform connectors as data sources to your Code App with automatic service layer and hook generation.

Reference

This skill uses official patterns from Microsoft Learn (February 2026). See the codeapps-dataverse and codeapps-connector agents for detailed patterns.

What This Skill Does

1. Identifies data source type (Dataverse table or connector)
2. Runs appropriate pac code add-data-source command (PAC CLI 1.46+ for Dataverse, 1.50+ for SharePoint)
3. Verifies generated files in src/generated/
4. Creates service layer wrapper with best practices (gen-service)
5. Generates React Query hooks for data operations (gen-hook)
6. Provides usage examples

Usage

Add Dataverse Table

/add-datasource dataverse account
/add-datasource dataverse contact
/add-datasource dataverse todos

Add Power Platform Connector

/add-datasource connector shared_office365users [connection-id]
/add-datasource connector shared_sql [connection-id] [table-name] [dataset]
/add-datasource connector shared_sharepointonline [connection-id] [list-name] [site-url]

Let Claude Invoke Automatically

Add the account Dataverse table as a data source
Connect to Office 365 Users
Add SQL Server connection for the Users table

Workflow

Step 1: Identify Data Source Type

Parse arguments to determine:

• Dataverse: First argument is "dataverse"
• Connector: First argument is "connector" or an API ID

Step 2: Dataverse Table Flow

2.1: Add Dataverse Table

pac code add-data-source -a dataverse -t $ARGUMENTS[1]

Examples:

pac code add-data-source -a dataverse -t account
pac code add-data-source -a dataverse -t todos

2.2: Verify Generated Files

# Check generated model
ls src/generated/models/*$ARGUMENTS[1]*Model.ts

# Check generated service
ls src/generated/services/*$ARGUMENTS[1]*Service.ts

2.3: Invoke gen-service Skill

Create service layer wrapper:

Use the gen-service skill to create a Dataverse service wrapper for $ARGUMENTS[1]

The gen-service skill will create a proper service that:

• ✅ Only sends user-controlled fields (no ownerid, statecode, timestamps)
• ✅ Handles Boolean fields with as any type assertion
• ✅ Transforms API responses to domain models
• ✅ Provides user-friendly error messages

2.4: Invoke gen-hook Skill

Create React Query hooks:

Use the gen-hook skill to create React Query hooks for $ARGUMENTS[1]

The gen-hook skill will create:

• use<TableName> - Query hook for fetching records
• useCreate<TableName> - Mutation hook for creating records
• useUpdate<TableName> - Mutation hook for updating records
• useDelete<TableName> - Mutation hook for deleting records

Step 3: Power Platform Connector Flow

3.1: List Available Connections

Help user discover connections:

pac connection list

Display available connections and ask user to select one (if not provided).

3.2: Identify Connector Type

Nontabular Connectors (Office 365 Users, Weather, Translator):

• No tables or datasets required
• Provide methods/functions directly

Tabular Connectors (SQL Server, SharePoint, Azure Data Explorer):

• Require table name and dataset
• Provide CRUD operations on tables

3.3: Add Connector Data Source

For Nontabular Connectors:

pac code add-data-source -a $ARGUMENTS[1] -c $ARGUMENTS[2]

Example:

pac code add-data-source -a shared_office365users -c <connection-id>

For Tabular Connectors:

First, list available datasets and tables:

# List datasets
pac code list-datasets -a $ARGUMENTS[1] -c $ARGUMENTS[2]

# List tables in dataset
pac code list-tables -a $ARGUMENTS[1] -c $ARGUMENTS[2] -d $ARGUMENTS[4]

Then add the data source:

pac code add-data-source -a $ARGUMENTS[1] -c $ARGUMENTS[2] -t $ARGUMENTS[3] -d $ARGUMENTS[4]

Example (SQL Server):

pac code add-data-source -a shared_sql -c <connection-id> -t dbo.Users -d myDatabase

Example (SharePoint):

pac code add-data-source -a shared_sharepointonline -c <connection-id> -t Tasks -d <site-url>

For SQL Stored Procedures:

pac code add-data-source -a shared_sql -c $ARGUMENTS[2] -d $ARGUMENTS[3] -sp $ARGUMENTS[4]

3.4: Verify Generated Files

ls src/generated/models/
ls src/generated/services/

3.5: Invoke gen-service Skill

Use the gen-service skill to create a connector service wrapper for $ARGUMENTS[1]

3.6: Invoke gen-hook Skill

Use the gen-hook skill to create React Query hooks for $ARGUMENTS[1]

Step 4: Connection References (ALM Best Practice)

For better ALM, suggest using connection references instead of direct connections:

# List connection references in solution
pac code list-connection-references -s <solution-id>

# Add with connection reference
pac code add-data-source -a $ARGUMENTS[1] -cr <connection-reference-logical-name> -s <solution-id>

Benefits:

• ✅ Connections reconfigurable per environment
• ✅ Better for Dev → Test → Prod promotion
• ✅ No code changes when moving between environments

Step 5: Usage Examples

Provide code examples showing how to use the generated service and hooks:

Dataverse Example:

// In a component
import { useAccounts, useCreateAccount } from '@/features/accounts/hooks/useAccounts';

function AccountsPage() {
  const { data: accounts, isLoading } = useAccounts();
  const createAccount = useCreateAccount();

  const handleCreate = async (name: string) => {
    await createAccount.mutateAsync({ name });
  };

  if (isLoading) return <Spinner />;

  return (
    <div>
      {accounts?.map(account => (
        <div key={account.id}>{account.name}</div>
      ))}
    </div>
  );
}

Connector Example (Office 365 Users):

import { useUserProfile } from '@/features/profile/hooks/useUserProfile';

function ProfilePage() {
  const { data: profile, isLoading } = useUserProfile();

  if (isLoading) return <Spinner />;

  return (
    <div>
      <h1>{profile?.displayName}</h1>
      <p>{profile?.jobTitle}</p>
      <p>{profile?.email}</p>
    </div>
  );
}

Step 6: Success Summary

✅ Data source added successfully!

📊 Data Source: $ARGUMENTS[1]
📁 Generated Files:
   - src/generated/models/<Name>Model.ts
   - src/generated/services/<Name>Service.ts
   - src/features/<name>/services/<Name>Service.ts
   - src/features/<name>/hooks/use<Name>.ts

🔍 Next Steps:
1. Review generated service wrapper
2. Test data operations: npm run dev
3. Add UI components to display/modify data
4. Deploy when ready: /deploy-codeapp

💡 Pro Tip: Never modify files in src/generated/ - they're auto-generated!

Common Data Source Types

Officially Tested Connectors

Error Handling

Error: Connection not found

Symptom: pac code add-data-source fails with connection not found

Fix:

1. List connections: pac connection list
2. If missing, user must create in Power Apps portal:
   • Go to https://make.powerapps.com
   • Navigate to Connections
   • Create new connection
3. Get connection ID and retry

Error: Table/dataset not found

Symptom: Can't find specified table or dataset

Fix:

# List available datasets
pac code list-datasets -a <api-id> -c <connection-id>

# List tables in dataset
pac code list-tables -a <api-id> -c <connection-id> -d <dataset>

Error: Build fails after adding data source

Symptom: TypeScript compilation errors after adding data source

Fix:

1. Check power.config.json.backup for configuration
2. Delete src/generated/ folder
3. Re-add data source:

   pac code delete-data-source -a <api-id> -ds <data-source-name>
   pac code add-data-source ...
   

4. Rebuild: npm run build

Error: Permission denied

Symptom: Can't access connector or table

Fix:

1. Verify user has permissions to the resource
2. Check connection status in Power Apps portal
3. Re-authenticate if needed:

   pac auth clear
   pac auth create
   

Remove Data Source

If you need to remove a data source:

# Remove data source
pac code delete-data-source -a <api-id> -ds <data-source-name>

# Remove stored procedure
pac code delete-data-source -a <api-id> -ds <data-source-name> -sp <stored-procedure-name>

Note: This removes generated files. You'll need to manually delete custom service layers and hooks.

Validation

After adding data source, verify:

• Generated model file exists
• Generated service file exists
• Custom service wrapper created
• React Query hooks created
• TypeScript compiles: npm run build
• No ESLint errors: npm run lint
• Data operations work in local dev: npm run dev

Related Skills

• Generate service: /gen-service (invoked automatically)
• Generate hook: /gen-hook (invoked automatically)
• Deploy app: /deploy-codeapp
• Fix issues: /fix-codeapp-issue

Pro Tip: Use connection references for better ALM when deploying across environments. They allow you to reconfigure connections without code changes.

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