#9: Add GET countriesByContinent request

SolardVPNCommunityCoreiOS/SOLARdVPNCommunityCoreiOS/Root/RouteCollections/Nodes/NodesRouteCollection.swift

@@ -16,6 +16,7 @@ struct NodesRouteCollection: RouteCollection {
         routes.post("nodesByAddress", use: postNodesByAddress)
         routes.get("countries", use: getCountries)
         routes.get("continents", use: getContinents)
+        routes.get("countriesByContinent", use: getCountriesByContinent)
     }
 }
 
@@ -90,4 +91,17 @@ extension NodesRouteCollection {
             Encoder.encode(model: response, continuation: continuation)
         })
     }
+
+    func getCountriesByContinent(_ req: Request) async throws -> String {
+        let continentCode = req.query[String.self, at: "continent"]
+
+        guard let continent = Continent(rawValue: continentCode ?? "") else {
+            throw Abort(.badRequest)
+        }
+
+        return try await withCheckedThrowingContinuation({ (continuation: CheckedContinuation<String, Error>) in
+            let response = context.nodesService.countriesInContinents[continent]
+            Encoder.encode(model: response, continuation: continuation)
+        })
+    }
 }

SolardVPNCommunityCoreiOS/SOLARdVPNCommunityCoreiOS/Services/NodesService/NodesService.swift

@@ -99,6 +99,10 @@ extension NodesService: NodesServiceType {
         }
     }
 
+    var countriesInContinents: [Continent: [Country]] {
+        _countriesInContinents
+    }
+
     func getCountries(completion: @escaping (Result<[Country], Error>) -> Void) {
         nodesProvider.getCountries() { [weak self] result in
             switch result {

SolardVPNCommunityCoreiOS/SOLARdVPNCommunityCoreiOS/Services/NodesService/NodesServiceType.swift

@@ -27,5 +27,6 @@ protocol NodesServiceType {
 
     // MARK: - Countries & Continents
 
+    var countriesInContinents: [Continent: [Country]] { get }
     var nodesInContinentsCount: [Continent: Int] { get }
 }