Server Side Events to update data display, Not for messaging and the like. |
Server Side Events to update data display, Not for messaging and the like. |
John Santana |
Sep 10 2020, 08:01 PM
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#1
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Group: Members Posts: 2 Joined: 10-September 20 Member No.: 27,535 |
I'm just learning SSE and find plenty of tutorials demonstrating how to create a web page that displays messages one after another.
For example, lots of examples show how to display the current time every few seconds. Each event adds a line below the previous one like: The time is 1:00 The time is 1:01 The time is 1:02 What I want to do is receive data that I can use to update text on a page that does not show as multiple lines. I would like to be able to handle the received data by SSE and handle the text just like any other. There are a few examples of sending xml or json as the data, but I can't figure out how to parse it out of the received message and apply it to elements of a page. I'm trying to keep this short, but I hope you can see what I'm trying to do. On a previous page that I created, I used polling to update inner html and that works, except the polling is not the best way to go. I really only send messages every several minutes, but when I do I want them to appear within a few seconds, so I would have to be polling all the time just to do a few updates now and then. The SSE method looks really useful, but I just need to be able to grab the data and format it. Thanks. JS |
John Santana |
Sep 14 2020, 08:00 PM
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#2
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Group: Members Posts: 2 Joined: 10-September 20 Member No.: 27,535 |
Well you did it. I don't know why I didn't think of that simple thing. But I didn't so you saved the day and I'm making great headway.
Many thanks. JS |
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