The operation couldn’t be completed. Connection reset by peer

I'm working on print functionality using socket programming in iOS. I'm using the following code to open streams and perform read and write operations. While opening streams, the delegate gets...

Error handling with node.js streams

What's the correct way to handle errors with streams? I already know there's an 'error' event you can listen on, but I want to know some more details about arbitrarily complicated situations. For...

GetEventStore error "Log record at actual pos X has too large length"

When performing ReadAllEventsForward on a restored database, I receive the following error: [PID:18628:030 2014.10.29 11:13:41.535 ERROR StorageReaderWorker ] Error during processing...

Can RxJS be used in a pull-based way?

The examples in the RxJS README seem to suggest we have to subscribe to a source. In other words: we wait for the source to send events. In that sense, sources seem to be push-based: the source...

SSE incredibly slow

I am currently writing the communication framework for a web game, the communications map can be seen below: The code is as follows: test.php: <!DOCTYPE html> <html> <head> <title> Test...

SyntaxError: 'import' and 'export' may appear only with 'sourceType: module' - Gulp

Consider the following two files: app.js import Game from './game/game'; import React from 'react'; import ReactDOM from 'react-dom'; export default (absPath) => { let gameElement...

Using javascript to check if m3u8 live stream is active

Issue I have a TVML app which calls a m3u8 live stream. The problem is that if the stream isn’t active, the video player throws an error message which cannot be customized. What I want to do is...

EmguCV capture rtsp ip camera stream ffmpeg

I am working with IP camera and EmguCV to detect person in an area. Everything is work normally with Highgui capture source. But with Arlo camera which use FFMPEG format, I am unable to get stream...

Flutter : stream two Streams into a single screen?

I have two streams fetching from two different api. Stream<Month> get monthOutStream => monthOutController.stream; Stream<MySchedule> get resultOutStream => resultController.stream; I am...

Null pointer exception with OutboundSseEvent in a server sent event service

I am trying to set up server sent events in a Java server with the OutboundSseEvent class. I'm not sure why my code keeps throwing a null pointer exception. I am using these tutorials as...

How to download the file from server location in react Js

On below onclick event I am hitting the API to get the filepath and then passing that filepath to download method---- onClick={event => {...

Use stream in provider with flutter

I make a simple example to understand using Stream with Provider pattern in flutter. I do not know How can I change stream value in this case ? when I click Add icon, the value will be add, count...

Getting a Simple Symfony 5 App On Amazon AWS As An API Gateway/Lambda For Amazon Cognito

This may involve way too many specific technologies for anyone to be able to answer, but I thought I'd give it a shot. I've ready SO Many tutorials and feel like I'm SO close...there's maybe just...

problem using server sent events with nodejs and react

I need to implement server-sent-events to my node js and react application, I did some research about this and I had followed some tutorials online especially this site because of its...

Redis streams - remove / expire events based on time

I am playing with redis stream and it is good so far. I am trying to understand if there is anyway for me to expire the old events based on time or some other way. I know that we can remove by...

How to handle UnkownProducerIdException

We are having some troubles with Spring Cloud and Kafka, at sometimes our microservice throws an UnkownProducerIdException, this is caused if the parameter transactional.id.expiration.ms is...

RawKeyboardListener not fired any event in Flutter web

Here it is simple code inside some widget. The RawKeyboardListener's onKey is not triggered! So the question why? Is it a bug? Container( child: StreamProvider<Item>.value( value: stream ...

SSE events are not reaching client until res.end() is called

The same code used to work before but i dont know why it is not working now.Please help. My problem is that when i use SSE for real time data sharing.The data object which should be sent on...

Flink Dynamic Update Stream job

I am receiving a set of events in Avro format on different topics. I want to consume these and write to s3 in parquet format. I have written a below job that creates a different stream for each...

Prevent flutter bloc state changes when navigate to new page

I'm new in using flutter_bloc and currently facing an issue in my project. So, i have bloc class like this: class TestBloc extends Bloc<TestEvent, TestState> { @override TestState get...

How do I enable TLS on an already connected Python asyncio stream?

I have a Python asyncio server written using the high level Streams API. I want to enable TLS on an already established connection, as in STARTTLS in the SMTP and IMAP protocols. The asyncio event...

Testing my bloc fails when using yield and Either in the mapEventToState

I'm following a course on clean architecture and I'm stuck with the following error. The following test fails. test('should emit [Error] when the input is invalid', () async { final...

Docker is Running But Pycharm Cannot Connect to Docker Daemon

I am new to docker and haven't found a question here to answer the problem I'm experiencing. I am tryin to use Pycharm to run a dockerfile, in order to debug certain program inside the docker. I...

Sending server-side events to GA4 using API

I've been using Google's documentation to attempt to build/test server-side events for GA4 using Postman. I've found the event to work when using their event builder (I see the event in real-time...

failed to register an external k8s cluster to Anthos - 'PermissionDenied'

After successfully attaching a GKE cluster from a different GCloud project to Anthos in current project, I am trying to attach an external k8s cluster (On-Prem; Rancher) to the same Anthos...

Why does my Angular / Express.js Server-Sent Events Code not work?

Goal: Use Server-Sent Events in my Angular App with Express Backend Problem: Server-Sent Events do not reach the client Backend Code router.get('/options/:a/:b/:c', async (req, res) => { ...

How to read lines in batches from a text file in Node.js

I am trying to figure out a way to open a Node.js Stream to read a text/CSV file as a Stream, so that: Read a batch of lines Pause the reading Do some async processing: Parse all lines to an...

How to debug delivery status of AWS SNS from message ID?

I use AWS for sending emails and SMS messages. I know about failed email messages because of the mailer-daemon returned email. Recently, I stopped receiving SMS messages on my text phone, even...

How to install libs for R arrow package on ubuntu without internet?

I am working on Azure databricks and it's compute server is Ubuntu 18.04. I want to install arrow R package but without internet access because of security reasons. I downloaded arrow tar file on...

Ways to detect an external program in the pipeline has exited

In a pipeline like GenerateLotsOfText | external-program | ConsumeExternalProgramOutput when external-program exits, the pipeline just keeps on running until GenerateLotsOfText completes....