wscat | WebSocket cat | Websocket library
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kandi X-RAY | wscat Summary
WebSocket cat
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of wscat
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wscat Examples and Code Snippets
Lines of Code : 6
License : No License
Copynpm run dap -- -h
sudo npm run dap -- Xorg
sudo npm run dap -- -n 1088
npm run dap -- -A mediaserver
npm run dap -- -A -n 31337
wscat -c ws://localhost:8888/event-stream
wscat -c 'wss://path.to.socket?param1=value1¶m2=value2'
exports.handler = async event => {
const { connectionId, domainName, stage } = event.requestContext;
const param1 = event.queryStringParame# install
npm install -g wscat
# use
wscat -c "wss://ws-feed.gdax.com"
var Express = require('express');
var app = Express();
var server = require('http').createServer(app);
var Primus = require('primus');
var primus = new Primus(server, {transformer: 'sockjs', pathname:'ws'});
primus.on('initialised', funnpm install -g wscat
wscat -l 43944
Community Discussions
Trending Discussions on wscat
QUESTION
I'm running a solana node using the solana-validator command (see Solana docs).
And I'd like to know if my validator is ready to connect to the http/rpc/ws port. What's the quickest way to do check to see if it's synced?
Currently, I'm using wscat to check to see if I can connect to the websocket, but am unable to. I'm not sure if that's because the node isn't setup right, or it's not synced, etc.
I know if I run solana gossip I should be able to see my IP in the list that populates... but is that the best way?
ANSWER
Answered 2022-Jan-04 at 18:54Take a look at solana catchup, which does exactly what you're asking for: https://docs.solana.com/cli/usage#solana-catchup
QUESTION
In my test step I required to first create the connection through the web socket with the following command and after that I need to send the payload:
...ANSWER
Answered 2021-Dec-16 at 06:18JMeter out of the box doesn't support WebSockets, you will need a plugin, i.e. JMeter WebSocket Samplers (can be installed using JMeter Plugins Manager)
Example setup:
More information: JMeter WebSocket Samplers - A Practical Guide
QUESTION
I have a very simple Websocket API hosted in AWS.
I am integrated this API with a Lambda function whose code is :
ANSWER
Answered 2021-Oct-18 at 21:37It seems like your Lambda function does not have permission to post message to API Gateway connections. Try giving your Lambda function permission for action execute-api:ManageConnections on the API Gateway resource.
QUESTION
i just stuck with my self coded application calling ws command (web socket) and i'm trying to export the output. Also i want to exit wscat when it's finished after sometime of input from API from the JSON backend devlopment
...ANSWER
Answered 2021-Nov-26 at 01:32Fixed based on @Barmar's comment:
You're overcomplicating this with all those variables. Just do
QUESTION
I am trying to connect to a Websocket API hosted in AWS from my Flutter app.
I am using the web_socket_channel package to build a real-time tchat app.
I have different routes for my WebSocket API : $connect, $disconnect and sendMessage.
I would like to send events to the server and get responses in dart.
So far, i have no way to debug this as the web_socket_channel doesn't offer this possibility... So i am simply not receiving events nor sending them (no logs in my CloudWatch log group, whereas i have some using wscat or Postman tool that are both working fine).
Here is my code :
...ANSWER
Answered 2021-Oct-21 at 12:56When the data is received the connection is closed. Just reconnect the server onDone and/or onError.
QUESTION
I am trying to set-up a websocket gateway to a Lambda function in AWS. When I do this manually I can successfully deploy the websocket and try it out using wscat. However I would like to build the architecture up using CloudFormation.
The structure of my CloudFormation yaml file looks like this:
...ANSWER
Answered 2021-Sep-27 at 11:02I guess you need AWS::Lambda::Permission resource, e.g.:
QUESTION
I have created an API Gateway with a Web Socket on AWS. I would like to connect to it using the HttpClient provided by VertX. I am using the following code for the client verticle:
...ANSWER
Answered 2021-Aug-06 at 15:47This question is dealing with basically the same problem. I will post the solution here just to document a straight-forward way to use AWS ApiGateway Websockets with VertX.
So, the goal is to implement a VertX WebClient connected to a deployed AWS Api WebSocket Gateway which can be reached under the WsUri "wss://[address].execute-api.us-east-1.amazonaws.com/dev" (you will have to replace [address] by the address of your ApiGateway Websocket).
Here the code to set up the WebClient, connect to the Websocket, print out a success message, and then disconnect again:
QUESTION
I have a problem with my HTTP integration for an AWS API Gateway that uses WEBSOCKET
These are the main characteristics of my configuration (it can be viewed in detail in the cloud formation template at the end of the post):
- Api Gateway Websocket
- Route selection expression
$request.body.action - Disabled execute api endpoint because I'm using a custom domain, although it does not seem to make any difference if I use the Api Gateway direct url instead
- Routes
$connect, asendand a$disconnect - Integration type is
HTTP_PROXY - The integration Uri (and here is the interesting part) is a URL that points to my custom domain, and the DNS resolves as ANOTHER Api Gateway in my AWS account (an
HTTPone) that integrates with a private ALB through a VPC_LINK and reaches a web service in an ECS cluster (I guess this is irrelevant now). - Bot Api Gateway, the http one and the websocket one, use a custom domain
api.mycompany.ioandws.mycompany.iowith a TLS certificate*.mycompany.io - The HTTP services run in a private subnet, but they're perfectly reachable from internet. I can send http requests and get back responses.
When I do
...ANSWER
Answered 2021-May-24 at 09:18I solved it.
The reason it failed with the "real" http integration pointing to my service is due to some http headers.
I reproduced the issue by accessing the cloud watch logs and viewing all the http headers that were being used in the actual http integration call, and, in PostMan, making a request to my service with exactly those headers. As expected, I got 400 Bad Request.
QUESTION
I am creating a demo websocket API using AWS API Gateway onConnect and onDisconnect, I have attached Lambda functions
with code like
...ANSWER
Answered 2021-Apr-14 at 03:30Issue was with data returned from handlers which has to be in string format using JSON.Stringify and output returned from handler has to be in specific format.
QUESTION
I have an http endpoint https://websocketsample.free.beeceptor.com
and an API Gateway in AWS for Websockets with routes for $connect, $disconnect and $default, all of them integrated with HTTP integration to a POST https://websocketsample.free.beeceptor.com so that I can capture the http request.
When I test it with wscat
...ANSWER
Answered 2021-Apr-03 at 02:52You have most likely forgotten to deploy your API (Routes -> Actions -> Deploy API). WebSocket APIs still use the old console which does not have auto deploy.
It works when I try it
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