add support for BedrockAgents (#55)

* add support for BedrockAgents

* fix soudness

Author: sebsto

Sources/AWSLambdaEvents/BedrockAgent.swift

@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftAWSLambdaRuntime open source project
+//
+// Copyright (c) 2017-2022 Apple Inc. and the SwiftAWSLambdaRuntime project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import HTTPTypes
+
+// https://docs.aws.amazon.com/bedrock/latest/userguide/agents-lambda.html#agents-lambda-input
+public struct BedrockAgentRequest: Codable, Sendable {
+    public let messageVersion: String
+    public let agent: Agent?
+    public let sessionId: String?
+    public let sessionAttributes: [String: String]?
+    public let promptSessionAttributes: [String: String]?
+    public let inputText: String?
+    public let apiPath: String?
+    public let actionGroup: String?
+    public let httpMethod: HTTPRequest.Method?
+    public let parameters: [Parameter]?
+    public let requestBody: RequestBody?
+
+    public struct Agent: Codable, Sendable {
+        public let alias: String
+        public let name: String
+        public let version: String
+        public let id: String
+    }
+
+    public struct Parameter: Codable, Sendable {
+        public let name: String
+        public let type: String
+        public let value: String
+    }
+
+    public struct RequestBody: Codable, Sendable {
+        public let content: [String: Content]
+        public struct Content: Codable, Sendable {
+            public let properties: [Parameter]
+        }
+    }
+}

Tests/AWSLambdaEventsTests/BedrockAgentTests.swift

@@ -0,0 +1,90 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftAWSLambdaRuntime open source project
+//
+// Copyright (c) 2017-2020 Apple Inc. and the SwiftAWSLambdaRuntime project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+@testable import AWSLambdaEvents
+import HTTPTypes
+import XCTest
+
+class BedrockAgentTests: XCTestCase {
+    static let eventBody =
+        """
+        {
+          "messageVersion": "1.0",
+          "agent": {
+            "alias": "AGENT_ID",
+            "name": "StockQuoteAgent",
+            "version": "DRAFT",
+            "id": "PR3AHNYEAA"
+          },
+          "sessionId": "486652066693565",
+          "sessionAttributes": {},
+          "promptSessionAttributes": {},
+          "inputText": "what the price of amazon stock ?",
+          "apiPath": "/stocks/{symbol}",
+          "actionGroup": "StockQuoteService",
+          "httpMethod": "GET",
+          "parameters": [
+            {
+              "name": "symbol",
+              "type": "string",
+              "value": "AMZN"
+            }
+          ],
+          "requestBody": {
+              "content": {
+                  "application/text": {
+                      "properties": [
+                        {
+                            "name": "symbol",
+                            "type": "string",
+                            "value": "AMZN"
+                          }
+                      ]
+                  }
+              }
+          }         
+        }
+        """
+
+    func testSimpleEventFromJSON() throws {
+        let data = BedrockAgentTests.eventBody.data(using: .utf8)!
+        var event: BedrockAgentRequest?
+        XCTAssertNoThrow(event = try JSONDecoder().decode(BedrockAgentRequest.self, from: data))
+
+        XCTAssertEqual(event?.messageVersion, "1.0")
+
+        XCTAssertEqual(event?.agent?.alias, "AGENT_ID")
+        XCTAssertEqual(event?.agent?.name, "StockQuoteAgent")
+        XCTAssertEqual(event?.agent?.version, "DRAFT")
+        XCTAssertEqual(event?.agent?.id, "PR3AHNYEAA")
+
+        XCTAssertEqual(event?.sessionId, "486652066693565")
+        XCTAssertEqual(event?.inputText, "what the price of amazon stock ?")
+        XCTAssertEqual(event?.apiPath, "/stocks/{symbol}")
+        XCTAssertEqual(event?.actionGroup, "StockQuoteService")
+        XCTAssertEqual(event?.httpMethod, .get)
+
+        XCTAssertTrue(event?.parameters?.count == 1)
+        XCTAssertEqual(event?.parameters?[0].name, "symbol")
+        XCTAssertEqual(event?.parameters?[0].type, "string")
+        XCTAssertEqual(event?.parameters?[0].value, "AMZN")
+
+        let body = try XCTUnwrap(event?.requestBody?.content)
+        let content = try XCTUnwrap(body["application/text"])
+        XCTAssertTrue(content.properties.count == 1)
+        XCTAssertEqual(content.properties[0].name, "symbol")
+        XCTAssertEqual(content.properties[0].type, "string")
+        XCTAssertEqual(content.properties[0].value, "AMZN")
+    }
+}