vercel#369 Configure Typescript project

.gitignore

@@ -8,3 +8,6 @@ yarn-error.log
 # coverage
 coverage
 .nyc_output
+
+# output
+lib

lib/error.js

@@ -1,4 +1,4 @@
-module.exports = (message, errorCode) => {
-	console.error(`micro: ${message}`);
-	console.error(`micro: https://err.sh/micro/${errorCode}`);
+module.exports = function (message, errorCode) {
+    console.error("micro: " + message);
+    console.error("micro: https://err.sh/micro/" + errorCode);
 };

lib/handler.js

@@ -1,36 +1,72 @@
-// Utilities
-const logError = require('./error');
-
-module.exports = async file => {
-	let mod;
-
-	try {
-		mod = await require(file); // Await to support exporting Promises
-
-		if (mod && typeof mod === 'object') {
-			mod = await mod.default; // Await to support es6 module's default export
-		}
-	} catch (err) {
-		logError(`Error when importing ${file}: ${err.stack}`, 'invalid-entry');
-
-		if (
-			err instanceof SyntaxError &&
-      /\s+async\s+/.test(err.stack) &&
-      Number(process.versions.node.split('.')[0]) < 8
-		) {
-			logError(
-				'In order for `async` & `await` to work, you need to use at least Node.js 8!',
-				'old-node-version'
-			);
-		}
-
-		process.exit(1);
-	}
-
-	if (typeof mod !== 'function') {
-		logError(`The file "${file}" does not export a function.`, 'no-export');
-		process.exit(1);
-	}
-
-	return mod;
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
 };
+var _this = this;
+// Utilities
+var logError = require('./error');
+module.exports = function (file) { return __awaiter(_this, void 0, void 0, function () {
+    var mod, err_1;
+    return __generator(this, function (_a) {
+        switch (_a.label) {
+            case 0:
+                _a.trys.push([0, 4, , 5]);
+                return [4 /*yield*/, require(file)];
+            case 1:
+                mod = _a.sent(); // Await to support exporting Promises
+                if (!(mod && typeof mod === 'object')) return [3 /*break*/, 3];
+                return [4 /*yield*/, mod["default"]];
+            case 2:
+                mod = _a.sent(); // Await to support es6 module's default export
+                _a.label = 3;
+            case 3: return [3 /*break*/, 5];
+            case 4:
+                err_1 = _a.sent();
+                logError("Error when importing " + file + ": " + err_1.stack, 'invalid-entry');
+                if (err_1 instanceof SyntaxError &&
+                    /\s+async\s+/.test(err_1.stack) &&
+                    Number(process.versions.node.split('.')[0]) < 8) {
+                    logError('In order for `async` & `await` to work, you need to use at least Node.js 8!', 'old-node-version');
+                }
+                process.exit(1);
+                return [3 /*break*/, 5];
+            case 5:
+                if (typeof mod !== 'function') {
+                    logError("The file \"" + file + "\" does not export a function.", 'no-export');
+                    process.exit(1);
+                }
+                return [2 /*return*/, mod];
+        }
+    });
+}); };