Best Practice for Creating Custom Application in SharePoint Online & Sample?

[Amirudin Abdul Majid]

Hello World!

May I know what is the best practise for me to have Custom Application Deploy in SharePoint Online? For example, Vehicle/Room/Asset Booking System, Custom Leave/HR Application, Custom Claim form etc.. Any steps / guide for me to follow? Any sample working source to start with ?(I've already done the Hello World WebPart tutorial).

Normally I just found small application like in github (spfx-40-fantastics web parts). What I'm looking for a complete example simple system that run properly in modern site of SharePoint Online. Hope to get feedback from all you guys. Thanks.

[#2]

I recommend you to take a look at https://developer.microsoft.com/en-us/office

[#3]

But no guide on how to create web application to publish in SharePoint Online. Or is it just can't be done at this moment?

[#4]

Only way to publish a web application in SPO is by means of Provider-Hosted AddIns....Provider-Hosted Addins are external web applications that can be registered as AddIns in SPO and work with SPO data