How to Build a Custom Pega DX Component from Scratch (Step-by-Step)

Prerequisites

• Node.js: Ensure Node.js is downloaded & installed on your machine.[cite: 1]
• OAuth 2.0 Client: In Pega, create an OAuth 2.0 Client Registration rule, then download both the Client ID and Client Secret.[cite: 1]
• Refer to official Pega Documentation to see how to initialize the DX component project.[cite: 1]

Initialize the Project

Run the initialization command in your terminal:[cite: 1]

• Go to your Pega Infinity App and create a dedicated Ruleset (e.g., MyDXComp:01-01).[cite: 1]
• Inside your Application Definition, add this newly created Ruleset.[cite: 1]
• When prompted by the CLI, provide:[cite: 1]
  • Project Name: My first component (creates local folder)[cite: 1]
  • Organization Name: My org[cite: 1]
  • Description: (Enter custom description)[cite: 1]

Configure tasks.config.json

Open the generated tasks.config.json file and update the following connection properties:[cite: 1]

Create the Component

• Component Type: Select 3) Widget[cite: 1]
• Subtype: Select 3) Page & Case[cite: 1]
• Component Name / Label / Description: Enter Timer[cite: 1]

Note: This scaffolds the skeleton. Open the workspace in VS Code under My first component/src/components/My first comp/Timer to begin your implementation.[cite: 1]

Package into a Library

(This step is required)[cite: 1]

• Library Name: MFC[cite: 1]
• Version #: 0.0.1[cite: 1]

Authenticate the library against your target instance:[cite: 1]

Enter your target Pega Server URL when prompted.[cite: 1]

Storybook, Coding & Publishing

• Write your custom logic inside index.tsx.[cite: 1]
• Use Stories.tsx to demo and inspect your component.[cite: 1]

Once everything looks good, push it to your Pega application:[cite: 1]

Final Step in UI: Open App Studio → Navigate to Library / DX Component → Add to Application. All set![cite: 1]