Questions tagged [websocket]
The websocket tag has no usage guidance.
44
questions
0
votes
1answer
20 views
Erc-20 Token Send Transaction
I want some Information about Erc-20 Transactions. I want to transfer Erc-20Token from first wallet to a second wallet, I have Privet Key, But I want to transfer with Api, So How can I transfer the ...
1
vote
1answer
39 views
Generate new address, Send and Get transaction then Check transaction
I'm just starting in the ethereum and trying to build an app using Web3 and Nodejs. I'll need your lights so I can get any idea to know how to resolve those points:
I have my own public address and ...
0
votes
1answer
38 views
geth subscribe newHeads not working
I run geth with this command
geth --syncmode "fast" --cache 2048 --datadir /data/ethereum --ws
--wsaddr 0.0.0.0 --wsorigins '*' --wsapi 'web3,eth,net,db,personal' --rpc --rpcaddr 0.0.0.0
then i ...
0
votes
0answers
40 views
Events using Infura websockets on rinkeby Web3 1.2.1. Returned values aren't valid, did it run Out of Gas?
I am trying to do a simple event listener with NodeJS and Web3 using an Infura endpoint. I have the correct project-id
const Web3 = require('web3');
let web3 = new Web3(
// Replace YOUR-PROJECT-ID ...
0
votes
0answers
11 views
Terminate WebsocketProvider
I have web-socket running properly as expected. Unfortunately, the termination of the websocket does not happen.
The program I used is
import Web3 from 'web3';
const eventProvider = new ...
0
votes
0answers
25 views
How to manually close a websocket connection to ganache-cli
I am trying to reproduce a bug which happens after my websocket connection restarts.
To pinpoint the problem I am trying to manually close (and then restart) the ws connection to my ganache-cli node.
...
0
votes
1answer
47 views
TimeoutError when using Infura websocket with web3.py
When I run the following code sometimes it executes successfully, but most of the time it raises a concurrent.futures._base.TimeoutError. What can I do to fix this?
Here is the code:
infura_url_ws = ...
0
votes
1answer
81 views
How to connect with WebSocket with Web3?
Already referred web3 documentations and other Q-A for web socket connection. Currently using infura as provider.
0
votes
1answer
19 views
Subscribe to events using local geth in light mode?
I've followed this guide to subscribe to events. I succesfully subscribed to the new block headers using Infura provider. But when I try to use local geth node syncing in light mode, it connects, but ...
1
vote
0answers
177 views
Problem connecting web3 via websocket to node with nginx
we are trying to connect to a geth node via WebSockets to be able to subscribe to contract events. This node is created with docker and this docker uses nginx as a proxy.
We can connect easily with ...
0
votes
0answers
47 views
How to get list of pending transactions for particular address on JavaScript using public API?
I'm building web-wallet on javascript, and I want to show not only available balance, but also pending amount.
From web3js v1.xx documentation I've learned that I can do
web3.eth.subscribe('...
1
vote
0answers
38 views
Infura websocket API timing out on connect
Has anyone ever had issues with the Infura Websocket API suddenly ceasing to respond. I have been using it to subscribe to event logs, but now the connection to the API is timing out.
1
vote
0answers
97 views
Ocasional connection refused initializing web3
I have an ethereum web application using web3js 1.0.0-beta.34 on a private network. Most of the times everything works fine. Sometimes the connection to the node through a websocket provider fails ...
0
votes
1answer
206 views
Infura Web Sockets doesn't work on Infura
I have a problem with connecting via Websockets to Infura. I am listening on some events from my smart contract, so when some event is dispatched by calling some method from smart contract, I should ...
1
vote
1answer
279 views
Error on WebSocket connection to Infura Ropsten (broken close frame)
I am trying to connect to Ropsten with Web3js (1.0) via Infura using their WebSocket provider but I am getting the following error:
WebSocket connection to 'wss://ropsten.infura.io/ws' failed: ...
0
votes
1answer
127 views
geth event newPendingTransactions does not occur
I've got running geth with next command:
$ geth --testnet --networkid 3 --verbosity 3 --syncmode light --ipcdisable --ws --wsapi "db,eth,net,web3,personal,txpool,admin,miner" --wsorigins '*'
In ...
0
votes
0answers
49 views
Can I use a WebSocket client for multiple abigen watchers?
I have question about abigen and websocket. My code is in Go.
I'm sending a bunch of transactions using abigen and I'm using abigen to watch each of the transaction and do something when it's mined.
...
0
votes
1answer
171 views
How to apply EthFilter to specific address?
In web3.js, we can apply event filter something like below:
this.event = this.Contract.events.MyEvent({
filter: { address: "0xAccountAddress" },
})
In Web3J, it is translated to
EthFilter ...
1
vote
1answer
266 views
Having issue with Infura mainnet web3 connection and getting info
I have been looking at a tutorial from DappUniversity about Web3... on the introductory video, I have completed all stages fine, but when getting to retriving account balance information from the ...
2
votes
0answers
321 views
ping / pong pattern for infura websocket [closed]
Infura websockets disconnect after an hour of in-activity so they suggest you ping / pong the connection at an interval less then an hour.
My problem is I'm new to server-side programming and don't ...
3
votes
0answers
426 views
What is the safest way to use WS-RPC server in geth?
In this answer, it is suggested that it is not safe to use --wsorigins="*" for security reasons. What are the security reasons?
=> How could I make WS-RPC server connection secure in geth?
If I use ...
1
vote
0answers
153 views
Cannot Connect to Geth Web Socket from Other PC on LAN
I have a geth node running on one PC, IP 192.168.0.105 and on my main dev machine IP 192.168.0.102, I'm trying to connect to it via web sockets but keep getting connection not open. Both are on the ...
2
votes
1answer
200 views
Connecting to blockchain on azure using web3.js and websocket
right now, I am trying to write a service using web3 which will 'subscribe' to all 'perndingtransactions' on blockchain to perform further actions. web3 documentation says that 'Httpprovider' cant be ...
1
vote
2answers
1k views
TypeError: Cannot set property 'method' of undefined when using WebsocketProvider
I'm using:
web3 v0.20.6
web3-providers-ws v1.0.0-beta.34
First question - can web3-providers-ws be used with web3 v0.20.*?
Second question (problem) - I get an error when probably trying to send ...
2
votes
3answers
4k views
web3 Websocket connection to infura
I receive this error when I'm trying to connect to the websocket
WebSocket connection to 'wss://ropsten.infura.io/ws' failed: Error during WebSocket handshake: Sent non-empty 'Sec-WebSocket-Protocol'...
0
votes
1answer
537 views
“Connection not open” error when subscribing to address with websocket
I'm trying to subscribe to transactions sent to or from a particular ethereum address. I also want to test this in a local private network, which is why I'm not using etherscan or something like that.
...
0
votes
1answer
128 views
Get a large amount of blocks with web3 (nodejs)
I'm writing a nodejs program that gets a large amount of blocks (>100,000) and looks at each transaction inside to filter / analyse the data.
I'm currently using web3 (v1) getBlock function:
eth....
0
votes
0answers
139 views
Unable to catch contract event using parity websockets
I have a contract deployed on ropsten which emits event when ether amount is deposited in it. I can see the event appearing in etherscan.
this.web3Socket = new Web3(new Web3.providers....
8
votes
0answers
1k views
web3 websocket connection prevents node process from exiting
I have a node js process that creates a web3 websocket connection, like so:
web3 = new Web3('ws://localhost:7545')
When the process completes, it does not exit, but rather hangs forever with no ...
2
votes
3answers
2k views
Is there any websocket ethereum provider?
Is there any websocket ethereum provider? Except etherscan one. Maybe there are paid wss subscriptions?
2
votes
1answer
302 views
Healtcheck on Websocket
I've looked through the documentation and haven't found that to be helpful.
I would like to know the best way to do a healthcheck on my websocket connection to geth (Yesterday, I found out that I did ...
0
votes
1answer
213 views
Unable to connect to geth
I'm totally new to Ethereum, and want to create some deposit address monitoring system using web socket. Which gets newly generated blocks and scan it for transactions made into it.
You can find code ...
2
votes
1answer
149 views
Is there a max number of websocket connections that geth can support?
I realize that it depends on my machine, RAM, etc, but is there a general guide of how many WS connections geth can support?
1
vote
1answer
85 views
API or websocket
I am trying to develop an crypto traking site like coinmarketcap, for market data I am using exchanges API. but I am little bit confuse whether i should use api or websocket? as i don't have much ...
1
vote
1answer
663 views
How to connect to Infura Testnet by using WebsocketProvider?
I want to connect to rinkeby.infura testnet by using WebsocketProvider but the page remains blocked to load.
const Web3 = require('web3');
console.log(Web3.givenProvider);
var web3 = new Web3( new ...
1
vote
1answer
187 views
Dapp fundamental q about listening solidity events
Sol:
I created contract with events that are raised when is called some function.
Html fo:
Those functions are called via web3.js with abi and address - easy.
Backend (no js) asp or php:
I am not ...
2
votes
1answer
832 views
Subscribe to events usign geth websocket
I'm trying to subscribe to geth using the websocket api. First step was to start geth:
geth --ws --wsport=8456 --wsorigins="*" --fast --cache=512 --rpcport=8455 --rpc --rpcapi="personal,eth,network"
...
1
vote
2answers
614 views
How to expose the underlying web socket connection from the WebSocketProvider?
Using web3.js version 1(beta) and using the WebsocketProvider to make a connection via
const Web3 = require('web3')
const web3 = new Web3('ws://localhost:8546')
const provider = web3.providers....
3
votes
2answers
3k views
connecting geth to web3.js 1.0 via websockets or HTTP
I am building a minimal nodeJS application that should connect via web3.js to my geth node. I am following the official web3.js1.0 documentation and I am using web3 1.0.0-beta.29.
I do manage to ...
asked Jan 28 '18 at 20:16
Validity Labs - Sebastian
6,8582 gold badges26 silver badges58 bronze badges
1
vote
2answers
2k views
TypeError: Web3.providers.WebsocketProvider is not a constructor?
Trying to connect to a geth machine over websocket?
JS code.
var Web3=require('web3');
var web3 = new Web3(new
Web3.providers.WebsocketProvider('ws://10.244.5.43:8546'));
console.log(web3....
5
votes
1answer
2k views
Subscription using websocket through Geth
I am trying to build a dapp which will monitor a particular address balance, and update in case someone send fund (ether) to it.
Instead of polling using call getBalance, I want to take advantage of ...
2
votes
0answers
519 views
Geth connection rpc vs ws
where I can find same articles or materials to understand differences between rpc and ws connection over geth.
From my point of view rpc is part of a websocket connection, so why I have to use ws ...
2
votes
0answers
263 views
Sockets/4 - Connection failed, retrying after 1000ms
After running for a bit I always get this with the latest ethereumwallet --fast and latest ubuntu:
[2017-07-01 17:00:30.037] [ERROR] ipcProviderBackend - Send request failed Error: Unable to connect ...
12
votes
2answers
8k views
Geth can't connected to via Websocket
I am trying to connect to Geth via Websockets but unfortunately i am given 403 error.
I am using the --ws --wsport XXXX args.
Everything is done in a local instance, so that would be surprising if ...
