SSR (Server-Side Rendering), ISR (Incremental Server-Side Rendering), and server-side streaming are all techniques for rendering and serving content to a client in a web application. Here is a brief overview of the differences between these three approaches:
SSR (Server-Side Rendering):
- SSR involves rendering the content of a web page on the server and sending the fully rendered HTML to the client.
- This can improve the performance and SEO of a web application, as the client does not have to wait for the JavaScript to execute before the page is displayed.
- However, SSR requires more resources on the server, as the server has to do the rendering work.
ISR (Incremental Server-Side Rendering):
- ISR is a variant of SSR in which the server sends the initial HTML content to the client, and then the client renders the rest of the content using JavaScript.
- This can improve the performance and SEO of a web application, as the initial content is displayed faster and the server does not have to do as much rendering work.
- However, ISR requires the client to have JavaScript enabled, as the client is responsible for rendering the rest of the content.
Server-Side Streaming:
- Server-side streaming involves sending a stream of data from the server to the client in real-time, without waiting for the entire response to be generated.
- This can be used to implement real-time features such as live updates or chat applications.
- Server-side streaming requires the use of a special HTTP header, Transfer-Encoding: chunked, which tells the client to expect a stream of data rather than a single response.
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