How to Fetch Live Sports Odds via API with TypeScript (Bet365, Paddy Power & More)

What You'll Need A free PulseScore API key → grab one here (no credit card required) Basic knowledge of HTTP requests Node.js installed with TypeScript ( npm install -g typescript ts-node ) Step 1 — Get Your Free API Key Head to pulsescore.net/dashboard and sign up for free. The Basic plan gives you 500 requests/month at no cost — more than enough to get started. Once registered, copy your API key from the dashboard. Step 2 — Define Your Types One of TypeScript's biggest advantages is type safety. Let's define the response structure first: interface Price { decimal : string ; } interface MarketOption { name : string ; pa : Price []; } interface MarketGroup { name : string ; ma : MarketOption []; } interface Match { fi : string ; sport : string ; league : string ; home : string ; away : string ; live : 0 | 1 ; tab ?: string ; mg : MarketGroup []; } interface WebSocketMessage { type : ' data ' ; timestamp : number ; events : Match []; } Step 3 — Fetch Live Odds (REST API) All requests us