WebSocket-to-TCP

Free WebSocket-to-TCP proxy using Network

Deploying

You can easily deploy a node to cloud services such as DigitalOcean using Docker

Repository

Fork this repository on your GitHub account

Environment variables

Setup environment variables

You can also create a .env file

RECEIVER_ZERO_HEX (required)

Your Ethereum address as a 0x-prefixed base16 string

e.g. 0x39dfd20386F5d17eBa42763606B8c704FcDd1c1D

CONTRACT_ZERO_HEX (optional)

The contract address as a 0x-prefixed base16 string

e.g. 0xCb781997B869Be704a9e54b0b61363f5F7f6d795

CHAIN_ID (optional)

The chain ID as a number or as a 0x-prefixed base16 string

e.g. 100 or 0x64

Billing

Choose the cheapest billing ($5/month)

Logs

Access to your secrets in the logs

Protocol

Connect to the proxy via WebSocket with the following URL query parameters

• session -> A unique private random unguessable string for your session (e.g. crypto.randomUUID())
• hostname -> TCP target hostname (e.g. google.com)
• port -> TCP target port (e.g. 80 for HTTP, 443 for HTTPS)

e.g. ws://localhost:8000/?hostname=google.com&port=80&session=22deac58-7e01-4ddb-b9c4-07c73a32d1b5

The connection then consists of two duplexes

• you send/receive bytes to talk with the TCP target
• you send/receive strings to talk with the proxy via JSON-RPC

Price

The price is 1 wei = 1 byte of communication

• Your balance is withdrawn when you send bytes to the TCP target
• Your balance is withdrawn when the TCP target sends you bytes

You MUST pay before talking with the TCP target

All connections are closed when your balance is negative

So you must count how many bytes you sent/received and pay when your balance is low

JSON-RPC

The proxy accepts the following JSON-RPC methods

net_get

{
  jsonrpc: "2.0",
  id: 123,
  method: "net_get"
}

Returns the Network parameters as { chainIdString, contractZeroHex, receiverZeroHex }

net_tip

{
  jsonrpc: "2.0",
  id: 123,
  method: "net_tip",
  params: [string[]]
}

Params contains the list of Network secrets as 0x-prefixed base16 strings of length 64

e.g.

[
  "0xe353e28d6b6a21a8188ef68643e4b93d41bca5baa853965a6a0c9ab7427138b0",
  "0xe4a66606a16f0ec836570e9450f6ca5b1178418d326644d4f961b742f929ac92",
  "0xe9f98c34b1e0f065584b58677d3217a91964823324f787742663e6cd05396fa1",
  "0xedb0fff61d454abc85cf73de1d81ff2b4871900c95b14358b6db2b468a887f37",
  "0xf1110e2b673a5840df3be8bffb5069b112c331fc7607aa8f92c80838ffcb40b5",
  "0xf19746763e166c9ab79e212d84034b6b82702d75c91ff3e35568c5258f2282b3",
  "0xf1cb66451b5979e35489242e0cc8690b2a8b0e0df54ada3db3d90ecadbff39de",
  "0xf4abc45b9965d2f99f2a23f2caaaf70ba52e81f525188468a8501c79ac73f8b6",
  "0xf7b61b995ee315720b6d64110098e6da84a70af0649f400ee4ea9f655b00e06c",
  "0xff874cacad0cdde5a675b712d7d7fe230774d2e555e73989d601a879db384ab9"
]

Each payment MUST contains at maximum 10 secrets with a minimum total value of 65536 wei

It will return your new balance as a decimal bigint string

{
  jsonrpc: "2.0",
  id: 123,
  result: "123456789123456789"
}