excuse my posting etiquette as I am new to stack overflow (and coding in general).
I have built a front end for a web app, using HTML,CSS, and Javascript. I have created a DB instance with Aws RDS using MySQL. I have successfully set up the database with the corresponding tables necessary for my webapp, but I am now stuck on how I actually interact between the front end and the back end.
I have done some research into a REST API, however finding competent learning material on the subject is harder than you'd think. Also, I don't need others to be able to access my data, just my client base.
I understand the basics of HTTP Requests, and I understand how to use MySQLI to get php files to interact with my database, but how should I get the relevant POST data into the PHP files to then have them push it to the database through MySQLI? How do I get the data retrieved via mysqli in PHP back to my web app?