A step-by-step guide to implementing OAuth 2.0 with PKCE (Proof Key for Code Exchange) for Airtable integration using a Node.js 22 + Express backend and an Angular 20 frontend. Covers PKCE concepts (code_verifier, code_challenge, code_challenge_method), setting up an Airtable OAuth integration, building backend endpoints for authorization URL generation and token exchange, and creating Angular components with route guards for the full authentication flow.
Table of contents
Step 1 — Create OAuth Integrations in Airtable Copy link Link copied!Step 2 — Create a Backend — Node.js 22 + Express Copy link Link copied!Step 3 — Frontend — Angular 20 Copy link Link copied!Service Integration: Copy link Link copied!18 Impressions