Ultralight Browser Node

This is a proof of concept that will start Ultralight in the browser that leverages a UDP proxy service to connect to other nodes in the discv5 network

Usage

Run npm run install-proxy to install the UDP proxy

Run npm run run-proxy to run the proxy. Optionally pass in your IP address as the first parameter (i.e. npm run run-proxy -- 192.168.0.100). Not doing may prevent other nodes from initiating connections with your client.

Run npx ts-node src/index.ts to start the UDP proxy

Clone this repo and install deps.

npm run start to start the node.

The discv5 object is exposed in the browser console and can be used to experiment with discv5 network connectivity.

Example Discv5 API calls

• discv5.addEnr("enr:-IS4QOw66SDvvI74NUImT3LaeXtSBspNaFIku6t33bm8PXx0HcZu1yrLRCOvIcxVaB-gyRWM06iZlqcYnCD65IyVw7kBgmlkgnY0gmlwhH8AAAGJc2VjcDI1NmsxoQNBJfNin_FrzGdqawimygn5j8eq4kOkZuVDIN6-c4XSB4N1ZHCCIzE") -- adds a node ENR to the local node's address book
• discv5.broadcastTalkReq("portal-state","0xabcx...").then((res) => console.log(res)) - notionally queries the portal network for a piece of content - will send the TALKREQ message to every peer in the address book
• discv5.findNode("fb395a91bbd03336c14bd25673bb8f1f2ef89e181e130d7d3244fe837542da9a")) - queries all peers in the address book for the ENR for the nodeId specified in the function call