abstracts rpc url

src/index.ts

@@ -5,57 +5,56 @@ interface Env {
 
 export default {
 	async fetch(request: Request, env: Env) {
-
 		// If the request is an OPTIONS request, return a 200 response with permissive CORS headers
-		// This is required for the Helius RPC Proxy to work from the browser and arbitrary origins
-		// If you wish to restrict the origins that can access your Helius RPC Proxy, you can do so by
+		// This is required for the GFX RPC Proxy to work from the browser and arbitrary origins
+		// If you wish to restrict the origins that can access your GFX RPC Proxy, you can do so by
 		// changing the `*` in the `Access-Control-Allow-Origin` header to a specific origin.
 		// For example, if you wanted to allow requests from `https://example.com`, you would change the
 		// header to `https://example.com`. Multiple domains are supported by verifying that the request
 		// originated from one of the domains in the `CORS_ALLOW_ORIGIN` environment variable.
 		const supportedDomains = env.CORS_ALLOW_ORIGIN ? env.CORS_ALLOW_ORIGIN.split(',') : undefined;
 		const corsHeaders: Record<string, string> = {
-			"Access-Control-Allow-Methods": "GET, HEAD, POST, PUT, OPTIONS",
-			"Access-Control-Allow-Headers": "*",
-		}
+			'Access-Control-Allow-Methods': 'GET, HEAD, POST, PUT, OPTIONS',
+			'Access-Control-Allow-Headers': '*',
+		};
 		if (supportedDomains) {
-			const origin = request.headers.get('Origin')
+			const origin = request.headers.get('Origin');
 			if (origin && supportedDomains.includes(origin)) {
-				corsHeaders['Access-Control-Allow-Origin'] = origin
+				corsHeaders['Access-Control-Allow-Origin'] = origin;
 			}
 		} else {
-			corsHeaders['Access-Control-Allow-Origin'] = '*'
+			corsHeaders['Access-Control-Allow-Origin'] = '*';
 		}
 
-		if (request.method === "OPTIONS") {
+		if (request.method === 'OPTIONS') {
 			return new Response(null, {
 				status: 200,
 				headers: corsHeaders,
 			});
 		}
 
-		const upgradeHeader = request.headers.get('Upgrade')
+		// const upgradeHeader = request.headers.get('Upgrade')
 
-		if (upgradeHeader || upgradeHeader === 'websocket') {
-			return await fetch(`https://mainnet.helius-rpc.com/?api-key=${env.HELIUS_API_KEY}`, request)
-		}
+		// if (upgradeHeader || upgradeHeader === 'websocket') {
+		// 	return await fetch(env.RPC_URL, request);
+		// }
 
+		const { search } = new URL(request.url);
 
-		const { pathname, search } = new URL(request.url)
 		const payload = await request.text();
-		const proxyRequest = new Request(`https://${pathname === '/' ? 'mainnet.helius-rpc.com' : 'api.helius.xyz'}${pathname}?api-key=${env.HELIUS_API_KEY}${search ? `&${search.slice(1)}` : ''}`, {
+		const proxyRequest = new Request(`${env.RPC_URL}${search ? `${search}` : ''}`, {
 			method: request.method,
 			body: payload || null,
 			headers: {
 				'Content-Type': 'application/json',
-				'X-Helius-Cloudflare-Proxy': 'true',
-			}
+				'X-GFX-Cloudflare-Proxy': 'true',
+			},
 		});
 
 		return await fetch(proxyRequest).then(res => {
 			return new Response(res.body, {
 				status: res.status,
-				headers: corsHeaders
+				headers: corsHeaders,
 			});
 		});
 	},