Simplify usage by providing a run() function

Author: sebsto

Sources/OpenAPILambda.swift

@@ -14,6 +14,7 @@
 //===----------------------------------------------------------------------===//
 import Foundation
 @_exported import AWSLambdaRuntime  // re-export AWSLambdaRuntime so that users don't have to.
+import Logging
 import OpenAPIRuntime
 import HTTPTypes
 
@@ -42,7 +43,28 @@ public protocol OpenAPILambda: Sendable {
 extension OpenAPILambda {
     /// Returns the Lambda handler function for this OpenAPI Lambda implementation.
     /// - Returns: A handler function that can be used with AWS Lambda Runtime
+    @inlinable
     public static func handler() throws -> @Sendable (Event, LambdaContext) async throws -> Output {
         try OpenAPILambdaHandler<Self>().handler
     }
+
+    /// Run the Lambda handler function for this OpenAPI Lambda implementation with a custom logger, when one is given.
+    /// - Parameter logger: The logger to use for Lambda runtime logging
+    @inlinable
+    public static func run(logger: Logger? = nil) async throws {
+        let lambdaRuntime:
+            LambdaRuntime<
+                LambdaCodableAdapter<
+                    LambdaHandlerAdapter<Self.Event, Self.Output, ClosureHandler<Self.Event, Self.Output>>, Self.Event,
+                    Self.Output, LambdaJSONEventDecoder, LambdaJSONOutputEncoder<Self.Output>
+                >
+            >
+        if let logger {
+            lambdaRuntime = try LambdaRuntime(logger: logger, body: Self.handler())
+        }
+        else {
+            lambdaRuntime = try LambdaRuntime(body: Self.handler())
+        }
+        try await lambdaRuntime.run()
+    }
 }