SSE (Sever-Side-Events): Simple Example Using Node JS

Install

npm install

Start Server

npm run dev

What is SSE (Sever-Side-Events)

A one-way connection, the server sending data to the client.

Server/Response sends the ‘text’ through the headers to client

Node JS Example:

app.use('/stream', (req, res) => {
res.setHeader('Content-Type', 'text/event-stream')
res.write('data: ' + '<ENTER_YOUR_DATA_TO_SEND>\n\n')
})

SSE (Server-Side-Events) Components

• HTTP 1 and/or HTTP 2

Reciving Events From The Server (Client-Side)

The server-sent event (browser) API is contained in the EventSource interface.