ASP.Net Core web to upload files to Sharepoint Online

Job ID: 36917449

Budget: $50 – $150 USD

We have 2 SharePoint sites, each one has its own document library with folders, subfolders and files.
I need an ASP.Net Core application (C# and net 6/7) that allows a user to upload files to any of these libraries using their own credentials/user account.
User should be able to browse the folders to select one where he/she will upload the file.

Visual Studio 2022 solution must be delivered at the end of the project.

Example of the links to our sites:
https://tenant.sharepoint.com/sites/Tecnologas
https://tenant.sharepoint.com/sites/Tecnologas/Documentos%20compartidos/Forms/AllItems.aspx

https://tenant.sharepoint.com/sites/Personas
https://tenant.sharepoint.com/sites/Personas/Documentos%20compartidos/Forms/AllItems.aspx
Related categories: .NET C# Programming Sharepoint ASP.NET