Add typescript definitions for built-in middlewares (#117)

* Add typescript definitions for built-in middlewares

* Added main.d.ts and remapped exports

* Move typescript definitions to the root directory

middlewares.d.ts

@@ -0,0 +1,74 @@
+import { SSM } from 'aws-sdk'
+import { Options as AjvOptions } from 'ajv'
+import middy from './middy'
+
+interface ICorsOptions {
+  origin: string;
+}
+
+interface ICacheOptions {
+  calculateCacheId?: (event: any) => Promise<string>;
+  getValue?: (key: string) => Promise<any>;
+  setValue?: (key: string) => Promise<void>;
+}
+
+interface IDoNotWaitForEmtpyEventLoopOptions {
+  runOnBefore?: boolean;
+  runOnAfter?: boolean;
+  runOnError?: boolean;
+}
+
+interface IHTTPContentNegotiationOptions {
+  parseCharsets?: boolean;
+  availableCharsets?: string[];
+  parseEncodings?: boolean;
+  availableEncodings?: string[];
+  parseLanguages?: boolean;
+  availableLanguages?: string[];
+  parseMediaTypes?: boolean;
+  availableMediaTypes?: string[];
+  failOnMismatch?: boolean;
+}
+
+interface IHTTPHeaderNormalizerOptions {
+  normalizeHeaderKey?: (key: string) => string;
+}
+
+interface ISSMOptions {
+  cache?: boolean;
+  params: { [key: string]: string; };
+  awsSdkOptions?: Partial<SSM.Types.ClientConfiguration>;
+  setToContext?: boolean;
+}
+
+interface IValidatorOptions {
+  inputSchema?: any;
+  outputSchema?: any;
+  ajvOptions?: Partial<AjvOptions>;
+}
+
+interface IURLEncodeBodyParserOptions {
+  extended?: false;
+}
+
+interface IWarmupOptions {
+  isWarmingUp?: (event: any) => boolean;
+  onWarmup?: (event: any) => void;
+}
+
+declare function cache(opts?: ICacheOptions): middy.IMiddyMiddlewareObject;
+declare function cors(opts?: ICorsOptions): middy.IMiddyMiddlewareObject;
+declare function doNotWaitForEmptyEventLoop(opts?: IDoNotWaitForEmtpyEventLoopOptions): middy.IMiddyMiddlewareObject;
+declare function httpContentNegotiation(opts?: IHTTPContentNegotiationOptions): middy.IMiddyMiddlewareObject;
+declare function httpErrorHandler(): middy.IMiddyMiddlewareObject;
+declare function httpEventNormalizer(): middy.IMiddyMiddlewareObject;
+declare function httpHeaderNormalizer(opts: IHTTPHeaderNormalizerOptions): middy.IMiddyMiddlewareObject;
+declare function httpPartialResponse(): middy.IMiddyMiddlewareObject;
+declare function jsonBodyParser(): middy.IMiddyMiddlewareObject;
+declare function s3KeyNormalizer(): middy.IMiddyMiddlewareObject;
+declare function ssm(opts?: ISSMOptions): middy.IMiddyMiddlewareObject;
+declare function validator(opts?: IValidatorOptions): middy.IMiddyMiddlewareObject;
+declare function urlEncodeBodyParser(opts?: IURLEncodeBodyParserOptions): middy.IMiddyMiddlewareObject;
+declare function warmup(opts?: IWarmupOptions): middy.IMiddyMiddlewareObject;
+
+export as namespace middlewares;

package.json

@@ -1,16 +1,16 @@
 {
   "name": "middy",
-  "version": "0.9.2",
+  "version": "0.9.3",
   "description": "🛵 The stylish Node.js middleware engine for AWS Lambda",
-  "main": "src/index.js",
+  "main": "./index.js",
   "files": [
     "src",
     "typescript",
     "index.js",
     "middlewares.js",
     "!__tests__"
   ],
-  "types": "./typescript/middy.d.ts",
+  "types": "./index.d.ts",
   "scripts": {
     "test:lint": "eslint --ignore-pattern='node_modules/' --ignore-pattern='coverage/' --ignore-pattern='docs/' .",
     "test:unit": "jest --verbose --coverage",