the method eth_blockNumber does not exist/is not available

External question — Ethereum Stack Exchange Author: forexmp45 Original post: https://ethereum.stackexchange.com/questions/143796 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. Hello hope are good ? I have my own full node with a ssh tunnel My code is : async function test (){ const url = 'ws://localhost:8546'; const web3 = new Web3(new Web3.providers.WebsocketProvider(url)); const a = await web3.eth.getBlockNumber(); console.log(a); } test(); Return : the method eth_blockNumber does not exist/is not available All is synced and working is there a pb ?

External answer — Ethereum Stack Exchange Author: VX3 Original post: https://ethereum.stackexchange.com/a/143797 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. This could be because the Ethereum node you are connecting to is not running the JSON-RPC interface on the same port, or that the Ethereum node is not fully synced yet. Make sure that you are connecting to the correct port and that the node is fully synced. Also check if the geth version you are using support the eth_blockNumber method.