Zena  Sporer

Zena Sporer


Server Sent Events — Architecture and Implementation

In layman terms, SSE is a Server Sent Event where the UI first initiates the call and requests for data, then the Server sends back the data to the caller (UI) when the data is available.
When an HTTP connection is made from the UI, the server holds the connection and responds back with the data when and ever it gets an event/data from the downstream APIs/sources.


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Server Sent Events — Architecture and Implementation
Zena  Sporer

Zena Sporer


Server-Sent Events Using Spring

Here we are going to discuss sending unidirectional asynchronous events to any web app using Spring. You can send unidirectional events using the SseEmitter class in Spring. There is already a popular solution available for sending bi-directional events using Websockets. Using WebSockets both server and clients can communicate with each other using bi-directional connections between client and server. SSE is only used for sending uni-directional events from the server to clients using the HTTP protocol.

Basic knowledge of Spring and java threading is required.

Steps involved in SSE ar:

  1. The client opens an HTTP connection
  2. The server can send any number of messages to this connection asynchronously
  3. The server can close a connection or it can be closed because of some network error or any exception at the server-side.
  4. In case the connection is closed because of any error from the server or any network error, the client will automatically try to re-connect


The server can send multiple events before closing the connection. Messages sent by the server should be text-based and the message starts with a keyword followed by a colon(:) and then a string message. ‘data’ is a keyword which represents a message for a client.

#java #spring #events #sse #server sent events #event source

Annie  Emard

Annie Emard


Event Based Architecture: What do you mean by EVENT?

The term “Event” is really overloaded. There are many different utilities that leverage events. Event Sourcing, Event Carried State Transfer, and Event Notifications. None of these are for the same purpose. When talking about an Event Based architecture, realize which one you’re using and for what purpose.

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📚 Book Recommendations

Domain-Driven Design

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0:00 Intro
1:10 Event Sourcing
3:03 Event Carried State Transfer
5:38 Event Notifications
8:32 Differences

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#event based architecture #architecture #event

studio52 dubai

studio52 dubai


7 Tips for a Successful Live Event Coverage - Studio 52

Live events have been a growing trend in the events industry this past year, offering many businesses a much-needed lifeline. Read on for our simple tips to planning your virtual event

#event coverage services #event photography #event video production #event videography #event coverage services #event photography

Ray  Patel

Ray Patel


Python Packages in SQL Server – Get Started with SQL Server Machine Learning Services


When installing Machine Learning Services in SQL Server by default few Python Packages are installed. In this article, we will have a look on how to get those installed python package information.

Python Packages

When we choose Python as Machine Learning Service during installation, the following packages are installed in SQL Server,

  • revoscalepy – This Microsoft Python package is used for remote compute contexts, streaming, parallel execution of rx functions for data import and transformation, modeling, visualization, and analysis.
  • microsoftml – This is another Microsoft Python package which adds machine learning algorithms in Python.
  • Anaconda 4.2 – Anaconda is an opensource Python package

#machine learning #sql server #executing python in sql server #machine learning using python #machine learning with sql server #ml in sql server using python #python in sql server ml #python packages #python packages for machine learning services #sql server machine learning services

How much does it cost to develop an app for the event planning business?

Event planning & management app is the generic term for a wide range of mobile app products that are used in the management of professional and academic conferences, trade exhibitions, conventions, and events such as Continuing Professional Development meetings.

Development Cost to build an Event Planning & Management App:

Based on the number of hours invested, features, and technologies involved, you can determine a rough estimate of Event Planning or Management app development cost. Cost depends on various factors such as follows.

• Basic & Advance Features

• Technology used

• Chosen Platform (iOS & Android)

• The Location of the app development center

• Mobile App complexity

• Numbers of hours invested in Project

The cost to create such an app can be as high as the number of integrated technologies. However, an app with basic features is certain to cost somewhere around $10,000 to $35,000 for single platforms (Android or iOS). If you want to make an app for various platforms then the cost will be vary based on features, location, development team, etc factors.

Best Event Planning & Management App Development Company:

Event Management apps streamline the entry process for events. Save your precious time for a smooth experience and devote time for more significant activities such as increasing revenue with a mobile app from AppClues Infotech, a top Events & Exhibitions App Development Company based in the USA and offer the best services across the world.

Save your time and money with their cost-effective mobile apps to easily collaborate with the participants of the events. Real-time chats help to carry out video conferencing with both the participants and the employees as well. Their mobile apps increase the efficiency of multiple events by sending important messages to the participants with a single click.

Offering services that make events successful:

  • Corporate events
  • Conferences
  • Trade shows
  • Sports and entertainment
  • Custom event schedule app development

Incorporate features that elevate experiences

  • Event creation
  • Event search
  • Event calendar
  • Ticket booking
  • Photo sharing
  • GPS
  • Push notification
  • Chatbot
  • Messaging
  • In-app payment
  • News & social feeds
  • In-app analytics

#how to develop an event app #event management app development company #custom event management app development #how to build an event planning app #develop a mobile app for events #cost to build a event management app