make sample a bit more complex by calling an HTTPS endpoint

Author: Stormacq, Sebastien

lambda-function/Sources/handler/main.swift

@@ -0,0 +1,43 @@
+//
+// LambdaRuntime API implementation for Swift 4
+//
+// Published under dual Apache 2.0 
+// https://www.apache.org/licenses/LICENSE-2.0
+// Sebastien Stormacq, (c) 2018 stormacq.com 
+//
+import Foundation
+
+import LambdaRuntime
+import LoggerAPI
+
+func handler(context: Context, event: LambdaEvent) throws -> LambdaResponse {
+    Log.debug("Starting lambda handler")
+
+    // fetch data from https://httpbin.org/json
+    let endpoint = "https://httpbin.org/get?value=\(event["key1"] ?? "no value provided")"
+    Log.debug(endpoint)
+    let (data, response, error) = URLSession.shared.synchronousDataTask(with: endpoint) //if url is invalid, it is a programming error
+    
+    // did we receive an error ?
+    guard error == nil else {
+        return  [ "error": error!.localizedDescription ]
+    }
+    
+    guard let event = data else {
+        return  [ "error": "no body returned" ]
+    }
+    
+    guard let resp = response else {
+        return  [ "error": "no response returned" ]
+    }
+    
+    if (resp.statusCode == 200) {
+        return try JSONify(jsonData: event) as LambdaEvent
+    } else {
+        return  [ "error": String(resp.statusCode) ]
+    }
+
+}
+
+try LambdaRuntime(handler).run()
+