Initial Release

.editorconfig

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+# http://editorconfig.org
+root = true
+
+[*]
+indent_style = tab
+tab_width = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.yml]
+indent_style = space

.github/workflows/build.yaml

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+name: Build
+on:
+  push:
+  pull_request:
+  repository_dispatch:
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    needs: test
+    steps:
+      - uses: actions/checkout@v2
+      - name: Publish
+        uses: cloudflare/[email protected]
+        with:
+          apiToken: ${{ secrets.CF_API_TOKEN }}
+        env:
+          CF_ACCOUNT_ID: ${{ secrets.CF_ACCOUNT_ID }}

.gitignore

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+.DS_Store
+/node_modules
+*-lock.*
+*.lock
+*.log
+
+/dist

.prettierrc

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+{
+	"semi": true,
+	"printWidth": 100,
+	"singleQuote": true,
+	"bracketSpacing": true,
+	"insertPragma": false,
+	"requirePragma": false,
+	"jsxSingleQuote": false,
+	"bracketSameLine": false,
+	"embeddedLanguageFormatting": "auto",
+	"htmlWhitespaceSensitivity": "css",
+	"vueIndentScriptAndStyle": true,
+	"quoteProps": "consistent",
+	"proseWrap": "preserve",
+	"trailingComma": "es5",
+	"arrowParens": "avoid",
+	"useTabs": true,
+	"tabWidth": 2
+}

README.md

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+# Helius RPC Proxy
+
+> NOTE: You must have an existing Helius account and API key for this to work! Get one for free at https://helius.xyz.
+
+This repo hosts a one-click-deploy Cloudflare worker that proxies RPC requests to Helius. 
+
+
+## Step 1
+
+Press the button below to deploy this to your own Cloudflare account:
+
+[![Deploy to Cloudflare Workers](https://deploy.workers.cloudflare.com/button)](https://deploy.workers.cloudflare.com/?url=https://github.com/helius-labs/helius-rpc-proxy)
+
+## Step 2
+
+Navigate to your newly deployed worker, and click "Settings" and then "Variables":
+![Variables](docs/add_variable.png)
+
+## Step 3
+Add a new variable with the key name `HELIUS_API_KEY` and your Helius API key as the value:
+![Add Secret](docs/add_secret.png)
+
+***NOTE:*** We recommend selecting "Encrypt". This will hide your key from the UI and API responses, and redact them from logs.
+![Encrypt](docs/encrypt.png)
+
+## Step 4
+Refresh the page and confirm that your key is now saved and encrypted:
+![Confirm](docs/confirm.png)
+
+You can now use your worker URL as an the RPC endpoint in all SDK and client side configurations without your API key leaking!

package.json

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+{
+	"private": true,
+	"version": "0.0.0",
+	"scripts": {
+		"deploy": "wrangler publish src/index.ts",
+		"dev": "wrangler dev src/index.ts --local",
+		"test": "vitest",
+		"start-stackblitz": "WRANGLER_SEND_METRICS=false wrangler dev src/index.ts --local"
+	},
+	"devDependencies": {
+		"@cloudflare/workers-types": "^3.0.0",
+		"vitest": "^0.24.5",
+		"wrangler": "^2.1.14"
+	}
+}

src/index.ts

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+interface Env {
+	HELIUS_API_KEY: string;
+}
+
+export default {
+	async fetch(request: Request, env: Env) {
+		const proxyRequest = new Request(`https://rpc.helius.xyz/?api-key=${env.HELIUS_API_KEY}`, {
+			method: request.method,
+			headers: request.headers,
+			body: request.body,
+		});
+
+		return fetch(proxyRequest);
+	},
+};

tsconfig.json

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+{
+	"compilerOptions": {
+		"noEmit": true,
+		"module": "esnext",
+		"target": "es2020",
+		"lib": ["es2020"],
+		"strict": true,
+		"alwaysStrict": true,
+		"preserveConstEnums": true,
+		"moduleResolution": "node",
+		"sourceMap": true,
+		"types": ["@cloudflare/workers-types"]
+	},
+	"include": ["src"],
+	"exclude": ["node_modules", "dist"]
+}

wrangler.toml

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+name = "rpc-proxy" # todo
+main = "./src/index.ts"
+compatibility_date = "2022-05-03"