With the entire environment set, we can finally implement the ASAP Server.
In a real server, the products are probably saved in a database, but in our simple implementation, we will save the products in a file—the same file we used in the app.
So, let's start the implementation by saving the products.json file at the same level of makefile.
A DBRepository class will abstract the connection with the storage, making it easy to switch to a database, as we did in the app:
import Foundation
let dbRepository = DBRepository()
class DBRepository {
func allProducts() -> String {
print("Get /products")
do {
let productsAsNSString = try NSString(contentsOfFile: "products.json",
encoding: NSUTF8StringEncoding)
#if os(Linux)
return productsAsNSString.bridge()
#else
return productsAsNSString as String
#endif
}
catch {
print("Error")
}
return "{ products: []...