Add aws-serverless-express definitions (#12030)

aws-serverless-express/aws-serverless-express-tests.ts

@@ -0,0 +1,29 @@
+/// <reference path="./aws-serverless-express.d.ts" />
+/// <reference path="../express/express.d.ts"/>
+
+import * as awsServerlessExpress from 'aws-serverless-express';
+import * as express from 'express';
+
+const app = express();
+const server = awsServerlessExpress.createServer(app, () => {});
+
+const mockEvent = {
+    key: 'value'
+};
+
+const mockContext = {
+    callbackWaitsForEmptyEventLoop: true,
+    functionName: 'testFunction',
+    functionVersion: '1',
+    invokedFunctionArn: 'arn',
+    memoryLimitInMB: 128,
+    awsRequestId: 'id',
+    logGroupName: 'group',
+    logStreamName: 'stream',
+    getRemainingTimeInMillis: () => 2000,
+    done: () => false,
+    fail: (error: any) => false,
+    succeed: (message: string) => false
+};
+
+awsServerlessExpress.proxy(server, mockEvent, mockContext);

aws-serverless-express/aws-serverless-express.d.ts

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+// Type definitions for aws-serverless-express
+// Project: https://github.com/awslabs/aws-serverless-express
+// Definitions by: Ben Speakman <https://github.com/threesquared>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts"/>
+/// <reference path="../aws-lambda/aws-lambda.d.ts"/>
+
+declare module 'aws-serverless-express' {
+
+    import * as http from 'http';
+    import * as lambda from 'aws-lambda';
+
+    export function createServer(
+        requestListener: (request: http.IncomingMessage, response: http.ServerResponse) => http.Server,
+        serverListenCallback?: () => any
+    ): http.Server;
+
+    export function proxy(
+        server: http.Server,
+        event: any,
+        context: lambda.Context
+    ): void;
+}