Server-sent events (SSE) (https://www.w3.org/TR/eventsource/) is a standard that enables efficient server-to-client streaming using a two-part implementation. The first part is the EventSource API that is implemented at the client side to initiate the SSE connection with the server, and the second part is the push protocol that defines the event stream data format that is used for the server-to-client communication.
The EventSource API of SSE is defined as a part of the HTML5 standard by W3C (https://en.wikipedia.org/wiki/World_Wide_Web_Consortium) and is now supported by all the modern web browsers:
SSEs are primarily used to push real-time notifications, updates, and continuous data streams from server to client once an initial connection has been established by the client. Generally, the notifications and updates are pulled...
