Questions tagged [websocket]
The websocket tag has no usage guidance.
0
votes
1answer
29 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
votes
0answers
40 views
Error while using websocket provider in web3 version 1.0.0-.beta.35 “not websocket protocol”
new web3(new web3.providers.WebsocketProvider('ws://localhost:8546'))
I am getting the error like not websocket protocol
0
votes
1answer
123 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
174 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
150 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 ...
0
votes
0answers
86 views
Parity node runs out of available RPC connections using web3
I'm using nodejs with web3 1.0.0. There are 2 instances of my app running, each making a websocket connection.
For some reason, my parity node seems to quickly run out of available RPC connections (...
1
vote
0answers
73 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
95 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
894 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 ...
1
vote
3answers
1k 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
294 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
88 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
108 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....
3
votes
0answers
580 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 ...
0
votes
0answers
98 views
Web3/Geth Websocket maximum message length?
I am currently using
web3 1.0.0-beta34
Ubuntu 16.04.4 LTS in HyperV
Geth 1.8.9 stable
Geth is running in dev mode and I am connected through websockets. I also have a smart contract deployed and I ...
0
votes
0answers
35 views
Is there any ready guides/github open codes for websocket built in?
I am trying to build something similar to wss://socket.etherdelta.com, are there any ready to go codes (open github repositories)? wss://api.forkdelta.com also as an example.
2
votes
2answers
883 views
Is there any websocket ethereum provider?
Is there any websocket ethereum provider? Except etherscan one. Maybe there are paid wss subscriptions?
0
votes
0answers
20 views
opening port in Geth [duplicate]
How can a open a websocket port in geth that connects to private network not to the main or test net just like in testrpc or ganache? As Ganache doesn't support websocket i want to use geth just like ...
2
votes
1answer
178 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
0answers
130 views
Mining with websocket provider using geth
I have a js frontend (no node.js) and I am trying to use websockets instead of the http provider to be able to listen to events.
I am using a local blockchain. Before, I used this command (worked):
$ ...
0
votes
1answer
114 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 ...
1
vote
1answer
79 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?
0
votes
1answer
67 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 ...
0
votes
0answers
107 views
What is the correct value for --wsorigins for a local Geth node?
I'm running a node and server on port 80 in the same AWS EC2 instance, and upon attempting to connect a websockets provider to the local node I get a couple of errors on the server and the node itself:...
0
votes
1answer
452 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
129 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
621 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
397 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
2k 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 ...
1
vote
2answers
1k 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
437 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
238 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 ...
10
votes
2answers
5k 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 ...
