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Set up a simple reverse proxy

In this tutorial, you'll use Caddy to set up a reverse proxy to route data from Infura to your own node.



1. Create a project directory

Create a new directory for your project. You can do this from the command line:

mkdir reverseProxy

Change into the new directory:

cd reverseProxy

2. Install Caddy

Install Caddy in the project directory using Homebrew:

brew install caddy

3. Create the reverse proxy

To create the reverse proxy, create a text file named Caddyfile with the following content:


reverse_proxy {
header_up Host

Ensure you replace <YOUR_API_KEY> with the API key for your Ethereum project.

In this example, the reverse proxy retrieves information from the Infura Goerli endpoint, and redirects it to localhost. Using header_up Host allows you to include your API key to both the Goerli and localhost endpoints.

4. Run the reverse proxy

In a new terminal window, from your project directory, run the reverse proxy using Caddy:

caddy run

5. Make a request

In a new terminal window, make a curl request to localhost. The following example executes a web3_clientVersion request:

curl https://localhost/v3/<YOUR_API_KEY> \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"web3_clientVersion","params": [],"id":1}'

To ensure that the reverse proxy is working, execute the same request, replacing localhost with You should get the same result:

curl<YOUR_API_KEY> \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"web3_clientVersion","params": [],"id":1}'