ubuntu server website for api request to a other website with upload an download from an csv sheet

ubuntu-20.04-x86_64 small api project create us a website on an ubuntu server where we can set manually the follow things: Post-String: version: authCode: apiUserId: projectIdentifier: and where we can set the follow things with an csv-file: ReceiverEmail: ReceiverSMS: postcode: And for the FormularItemsList (like the csv-file-example - but with no limits of fields): Name: Value: at the end we want a list of the submited AgentURL to download from the homepage in an csv-file with all uploaded parts from the csv-file. there should be no limit for the size of the csv file. it should do 5-2000 lines in the csv-sheet. for the api i think it is positive to give them a time of 2 seconds for every new request. as server i thought about an ubunu-20.04-x86_64 with 2vCores 1 GB Ram 20 GB SSD Storage The website should be only availabel with the ip adress from the server and we need an easy login like: admin passwort : ........... Please show the pictures, too!