SurveyJS - Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App
With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
surveyjs.io
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
https://socket.io/get-started/ might be good place to start. It's built on https://github.com/websockets/ws . So searching around for some node.js ws (or socket.io) server tutorials might also be a solid bet.
socket.io uses long polling, which is basically sending a bunch of post requests at a time that the browser can send data back to the server with.
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