web3 methods not implemented

Question

I'm running a geth node on the testnet and trying to run web3.js method from my node server code.

Here's my code

var Web3 = require("web3");
var web3 = new Web3(new Web3.providers.HttpProvider('http://0.0.0.0:8545'));
console.log(web3.net.peerCount);

However, I'm getting net_peerCount method not implemented error.

Infact, I'm getting a similar method not implemented error when I try to access any net or eth methods.

Any help appreciated!

Answer 1

I got it working by running the command i found in the docs https://github.com/ethereum/go-ethereum/wiki/JavaScript-Console#adminstartrpc

admin.startRPC("127.0.0.1", 8545, "*", "web3,db,net,eth")

from my geth console!

Thanks for the suggestions :)

Answer 2

Try not to mix cases when you use the web3 variable. When you specify the address, I hope you didn't physically used 0.0.0.0. For a local node, here's an exampe:

var web3=require('web3');
web3.setProvider(new web3.providers.HttpProvider('http://localhost:8545'));

For reference, consult the Javascript-API help document in the doc dir.

Answer 3

This answer on reddit helped me.

Run geth with:

geth --rpc --rpcapi "web3,net,personal,eth"

The "personal" api is not exposed by default with the --rpc option. Once you do the above, it exposes all the ones listed, including personal which will allow you do do the personal_unlockAccount and personal_newAccount (which I'm assuming you are after).