WSClient is not able to set up the connection

[nagdahimanshu]

Expected behavior

WSClient should create a connection without any issue

Actual behavior

Getting timeout while creating a connection

Steps to reproduce

• Use createWSClient from @liskhq/lisk-api-client

Which version(s) does this affect? (Environment, OS, etc...)

development

[ishantiw]

Commander start commands needs to fixed when handling api flags, https://github.com/LiskHQ/lisk-sdk/blob/development/commander/src/bootstrapping/commands/start.ts#L180 https://github.com/LiskHQ/lisk-sdk/blob/development/commander/src/bootstrapping/commands/start.ts#L186 mode should be modes and should be an array for ex, ['ipc'] or ['ws']

Even after fixing this when we try to connect using wsClient we get the following error.

/lisk-sdk/node_modules/ws/lib/websocket.js:224
      return abortHandshake(this, this._req, msg);
             ^
Error: WebSocket was closed before the connection was established

[shuse2]

The RPC endpoint path was accidentally changed to /rpc, but it is working. The remaining issue will be resolved together in #7277

[blorgon1]

This still does not work when try to connect to testnet or mainnet:

const { apiClient } = require('lisk-elements');

async function main() {
    const client = await apiClient.createWSClient('wss://testnet-service.lisk.com/rpc-v2');
    console.log(await client.node.getNetworkStats());
}

main()
    .catch(console.error);

Output:

> node src/client-test.js 
Error: Unexpected server response: 502
    at ClientRequest.<anonymous> (node_modules/ws/lib/websocket.js:767:7)
    at ClientRequest.emit (node:events:513:28)
    at HTTPParser.parserOnIncomingClient [as onIncoming] (node:_http_client:674:27)
    at HTTPParser.parserOnHeadersComplete (node:_http_common:128:17)
    at TLSSocket.socketOnData (node:_http_client:521:22)
    at TLSSocket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
    at TLSSocket.Readable.push (node:internal/streams/readable:228:10)
    at TLSWrap.onStreamRead (node:internal/stream_base_commons:190:23)

Tried these URLS:

wss://testnet-service.lisk.com/rpc-v2
wss://testnet-service.lisk.com/rpc
wss://service.lisk.com/rpc-v2
wss://service.lisk.com/rpc

[przemerr]

@blorgon1 this is not related, you're trying to connect to a service node:

I don't believe there's an official node with WS connection opened, here is a working code with a community node

const { apiClient } = require('@liskhq/lisk-client');

async function main() {
    const client = await apiClient.createWSClient('wss://mainnet-api.lemii.dev/ws');
    console.log(await client.node.getNetworkStats());
}

main()
    .catch(console.error);

if you want to connect to lisk-service you need to use socket.io library

https://lisk.com/documentation/lisk-service/index.html#the-json-rpc-api

[blorgon1]

Thank you that is working for me.