Load configuration from file

Sources/App/Management/Configuration.swift

@@ -0,0 +1,32 @@
+import Foundation
+
+struct Configuration {
+
+    let serverPort: Int
+}
+
+extension Configuration {
+
+    init(loadFromUrl url: URL) throws {
+        let data: Data
+        do {
+            data = try Data(contentsOf: url)
+        } catch {
+            print("Failed to load configuration data from \(url.path): \(error)")
+            throw error
+        }
+        try self.init(data: data)
+    }
+
+    init(data: Data) throws {
+        do {
+            self = try JSONDecoder().decode(Configuration.self, from: data)
+        } catch {
+            print("Failed to decode configuration: \(error)")
+            throw error
+        }
+    }
+}
+extension Configuration: Codable {
+
+}

Sources/App/configure.swift

@@ -7,7 +7,11 @@ var server: SQLiteDatabase!
 public func configure(_ app: Application) throws {
     let storageFolder = URL(fileURLWithPath: app.directory.resourcesDirectory)
 
-    app.http.server.configuration.port = 6002
+    let configPath = URL(fileURLWithPath: app.directory.resourcesDirectory)
+        .appendingPathComponent("config.json")
+    let configuration = try Configuration(loadFromUrl: configPath)
+
+    app.http.server.configuration.port = configuration.serverPort
 
     // Set target environment
     app.environment = .production