lambcycle/dist/main.js

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/***/ "./src/Constants/ErrorTypes.ts":
/*!*************************************!*\
  !*** ./src/Constants/ErrorTypes.ts ***!
  \*************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var ErrorTypes;
(function (ErrorTypes) {
    ErrorTypes["REGISTER_NO_PLUGINS_PRESENT"] = "REGISTER_NO_PLUGINS_PRESENT";
    ErrorTypes["REGISTER_PLUGIN_DOES_NOT_HAVE_HOOKS"] = "REGISTER_PLUGIN_DOES_NOT_HAVE_HOOKS";
    ErrorTypes["REGISTER_PLUGIN_HOOK_IS_INVALID"] = "REGISTER_PLUGIN_HOOK_IS_INVALID";
})(ErrorTypes || (ErrorTypes = {}));
exports.default = ErrorTypes;


/***/ }),

/***/ "./src/Constants/PluginLifeCycle.ts":
/*!******************************************!*\
  !*** ./src/Constants/PluginLifeCycle.ts ***!
  \******************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var PreHandlerLifeCycleHooks;
(function (PreHandlerLifeCycleHooks) {
    PreHandlerLifeCycleHooks["ON_REQUEST"] = "onRequest";
    PreHandlerLifeCycleHooks["ON_AUTH"] = "onAuth";
    PreHandlerLifeCycleHooks["ON_PRE_HANDLER"] = "onPreHandler";
})(PreHandlerLifeCycleHooks || (PreHandlerLifeCycleHooks = {}));
exports.PreHandlerLifeCycleHooks = PreHandlerLifeCycleHooks;
var PostHandlerLifeCycleHooks;
(function (PostHandlerLifeCycleHooks) {
    PostHandlerLifeCycleHooks["ON_POST_HANDLER"] = "onPostHandler";
    PostHandlerLifeCycleHooks["ON_PRE_RESPONSE"] = "onPreResponse";
})(PostHandlerLifeCycleHooks || (PostHandlerLifeCycleHooks = {}));
exports.PostHandlerLifeCycleHooks = PostHandlerLifeCycleHooks;
var PluginLifeCycleHooks;
(function (PluginLifeCycleHooks) {
    PluginLifeCycleHooks["ON_REQUEST"] = "onRequest";
    PluginLifeCycleHooks["ON_AUTH"] = "onAuth";
    PluginLifeCycleHooks["ON_PRE_HANDLER"] = "onPreHandler";
    PluginLifeCycleHooks["ON_POST_HANDLER"] = "onPostHandler";
    PluginLifeCycleHooks["ON_PRE_RESPONSE"] = "onPreResponse";
    PluginLifeCycleHooks["ON_ERROR"] = "onError";
})(PluginLifeCycleHooks || (PluginLifeCycleHooks = {}));
exports.PluginLifeCycleHooks = PluginLifeCycleHooks;


/***/ }),

/***/ "./src/Constants/PluginType.ts":
/*!*************************************!*\
  !*** ./src/Constants/PluginType.ts ***!
  \*************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var PluginType;
(function (PluginType) {
    PluginType["ERROR"] = "PLUGIN_TYPE_ERROR";
})(PluginType || (PluginType = {}));
exports.default = PluginType;


/***/ }),

/***/ "./src/Helpers/executeHandler.ts":
/*!***************************************!*\
  !*** ./src/Helpers/executeHandler.ts ***!
  \***************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

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};
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var isPromise_1 = __webpack_require__(/*! ../Utils/isPromise */ "./src/Utils/isPromise.ts");
var executeHandler = function (lambdaHandler, wrapper, handleError) { return __awaiter(_this, void 0, void 0, function () {
    var addResponseToWrapper, createCallbackPromise, _a, handlerCallback, callbackPromise, responseReference, response, response, error_1;
    return __generator(this, function (_b) {
        switch (_b.label) {
            case 0:
                if (wrapper.error)
                    return [2 /*return*/];
                addResponseToWrapper = function (response) {
                    wrapper.response = response;
                };
                createCallbackPromise = function () {
                    var handlerCallback;
                    var handlerPromise = new Promise(function (resolve) {
                        handlerCallback = function (error, response) {
                            if (error) {
                                throw error;
                            }
                            else {
                                resolve(response);
                            }
                        };
                    });
                    return {
                        // @ts-ignore
                        handlerCallback: handlerCallback,
                        handlerPromise: handlerPromise
                    };
                };
                _b.label = 1;
            case 1:
                _b.trys.push([1, 7, , 9]);
                _a = createCallbackPromise(), handlerCallback = _a.handlerCallback, callbackPromise = _a.handlerPromise;
                responseReference = lambdaHandler(wrapper.event, wrapper.context, handlerCallback);
                if (!isPromise_1.default(responseReference)) return [3 /*break*/, 3];
                return [4 /*yield*/, responseReference];
            case 2:
                response = _b.sent();
                return [2 /*return*/, addResponseToWrapper(response)];
            case 3:
                if (!(responseReference === void 0)) return [3 /*break*/, 5];
                return [4 /*yield*/, callbackPromise];
            case 4:
                response = _b.sent();
                return [2 /*return*/, addResponseToWrapper(response)];
            case 5: 
            // call is synchronous
            return [2 /*return*/, addResponseToWrapper(responseReference)];
            case 6: return [3 /*break*/, 9];
            case 7:
                error_1 = _b.sent();
                return [4 /*yield*/, handleError(error_1)];
            case 8:
                _b.sent();
                return [3 /*break*/, 9];
            case 9: return [2 /*return*/];
        }
    });
}); };
exports.default = executeHandler;


/***/ }),

/***/ "./src/Helpers/executePlugin.ts":
/*!**************************************!*\
  !*** ./src/Helpers/executePlugin.ts ***!
  \**************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

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;
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};
var _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
var executePlugin = function (plugin, wrapper, handleError) { return __awaiter(_this, void 0, void 0, function () {
    var err_1;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0:
                _a.trys.push([0, 2, , 4]);
                return [4 /*yield*/, plugin(wrapper, handleError)];
            case 1:
                _a.sent();
                return [3 /*break*/, 4];
            case 2:
                err_1 = _a.sent();
                return [4 /*yield*/, handleError(err_1)];
            case 3:
                _a.sent();
                return [3 /*break*/, 4];
            case 4: return [2 /*return*/];
        }
    });
}); };
exports.default = executePlugin;


/***/ }),

/***/ "./src/Helpers/executePlugins.ts":
/*!***************************************!*\
  !*** ./src/Helpers/executePlugins.ts ***!
  \***************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

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;
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                case 5: _.label++; y = op[1]; op = [0]; continue;
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        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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};
var _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
var PluginType_1 = __webpack_require__(/*! ../Constants/PluginType */ "./src/Constants/PluginType.ts");
var executePlugin_1 = __webpack_require__(/*! ./executePlugin */ "./src/Helpers/executePlugin.ts");
var executePlugins = function (lifeCyclePlugins, wrapper, handleError, pluginType) { return __awaiter(_this, void 0, void 0, function () {
    var _a, _b, _i, index;
    return __generator(this, function (_c) {
        switch (_c.label) {
            case 0:
                _a = [];
                for (_b in lifeCyclePlugins)
                    _a.push(_b);
                _i = 0;
                _c.label = 1;
            case 1:
                if (!(_i < _a.length)) return [3 /*break*/, 4];
                index = _a[_i];
                if (pluginType !== PluginType_1.default.ERROR && wrapper.error)
                    return [2 /*return*/];
                return [4 /*yield*/, executePlugin_1.default(lifeCyclePlugins[index], wrapper, handleError)];
            case 2:
                _c.sent();
                _c.label = 3;
            case 3:
                _i++;
                return [3 /*break*/, 1];
            case 4: return [2 /*return*/];
        }
    });
}); };
exports.default = executePlugins;


/***/ }),

/***/ "./src/Utils/callOnce.ts":
/*!*******************************!*\
  !*** ./src/Utils/callOnce.ts ***!
  \*******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var callOnce = function (fn) {
    var called = false;
    return function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        if (called)
            return;
        called = true;
        return fn.apply(null, args);
    };
};
exports.default = callOnce;


/***/ }),

/***/ "./src/Utils/createError.ts":
/*!**********************************!*\
  !*** ./src/Utils/createError.ts ***!
  \**********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var createError = function (errorEvent) {
    return errorEvent;
};
exports.default = createError;


/***/ }),

/***/ "./src/Utils/isPromise.ts":
/*!********************************!*\
  !*** ./src/Utils/isPromise.ts ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var OBJECT = 'object';
var FUNCTION = 'function';
var isPromise = function (promise) {
    return promise &&
        typeof promise === OBJECT &&
        typeof promise.then === FUNCTION &&
        typeof promise.catch === FUNCTION;
};
exports.default = isPromise;


/***/ }),

/***/ "./src/main.ts":
/*!*********************!*\
  !*** ./src/main.ts ***!
  \*********************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var middleware_1 = __webpack_require__(/*! ./middleware */ "./src/middleware.ts");
exports.default = middleware_1.default;


/***/ }),

/***/ "./src/middleware.ts":
/*!***************************!*\
  !*** ./src/middleware.ts ***!
  \***************************/
/*! no static exports found */
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"use strict";

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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Object.defineProperty(exports, "__esModule", { value: true });
var ErrorTypes_1 = __webpack_require__(/*! ./Constants/ErrorTypes */ "./src/Constants/ErrorTypes.ts");
var PluginLifeCycle_1 = __webpack_require__(/*! ./Constants/PluginLifeCycle */ "./src/Constants/PluginLifeCycle.ts");
var PluginType_1 = __webpack_require__(/*! ./Constants/PluginType */ "./src/Constants/PluginType.ts");
var executeHandler_1 = __webpack_require__(/*! ./Helpers/executeHandler */ "./src/Helpers/executeHandler.ts");
var executePlugins_1 = __webpack_require__(/*! ./Helpers/executePlugins */ "./src/Helpers/executePlugins.ts");
var callOnce_1 = __webpack_require__(/*! ./Utils/callOnce */ "./src/Utils/callOnce.ts");
var createError_1 = __webpack_require__(/*! ./Utils/createError */ "./src/Utils/createError.ts");
var preHandlerHookList = Object['values'](PluginLifeCycle_1.PreHandlerLifeCycleHooks);
var postHandlerHookList = Object['values'](PluginLifeCycle_1.PostHandlerLifeCycleHooks);
var middleware = function (lambdaHandler) {
    var plugins = {
        onRequest: [],
        onAuth: [],
        onPreHandler: [],
        onPostHandler: [],
        onPreResponse: [],
        onError: []
    };
    var register = function (pluginsManifest) {
        if (!pluginsManifest || !pluginsManifest.length) {
            throw createError_1.default({
                type: ErrorTypes_1.default.REGISTER_NO_PLUGINS_PRESENT
            });
        }
        pluginsManifest.forEach(function (pluginManifest) {
            var plugin = Object.keys(pluginManifest.plugin);
            if (!plugin || !plugin.length) {
                throw createError_1.default({
                    type: ErrorTypes_1.default.REGISTER_PLUGIN_DOES_NOT_HAVE_HOOKS
                });
            }
            Object.keys(pluginManifest.plugin).forEach(function (key) {
                if (Object['values'](PluginLifeCycle_1.PluginLifeCycleHooks).includes(key)) {
                    var currentPlugin = pluginManifest.plugin[key];
                    var pluginConfig = pluginManifest.config;
                    // bind workaround
                    var passConfigToPlugin = function (innerPlugin) { return function (config) {
                        if (config === void 0) { config = {}; }
                        return function (innerWrapper, handleError) { return innerPlugin(innerWrapper, config, handleError); };
                    }; };
                    var lifeCycleMethod = passConfigToPlugin(currentPlugin)(pluginConfig);
                    plugins[key].push(lifeCycleMethod);
                }
                else {
                    throw createError_1.default({
                        type: ErrorTypes_1.default.REGISTER_PLUGIN_HOOK_IS_INVALID,
                        details: [
                            key + " is not a valid hook",
                            'see PluginLifeCycleHooks'
                        ]
                    });
                }
            });
        });
        return wrapper;
    };
    var wrapper = (function (lambdaEvent, lambdaContext, lambdaCallback) {
        return __awaiter(this, void 0, void 0, function () {
            var executeLambdaCallback, errorHandler, _a, _b, _i, index, _c, _d, _e, index;
            var _this = this;
            return __generator(this, function (_f) {
                switch (_f.label) {
                    case 0:
                        wrapper.event = lambdaEvent;
                        wrapper.context = lambdaContext;
                        wrapper.error = null;
                        wrapper.response = null;
                        executeLambdaCallback = callOnce_1.default(function () {
                            return lambdaCallback(wrapper.error, wrapper.response);
                        });
                        errorHandler = callOnce_1.default(function (error) { return __awaiter(_this, void 0, void 0, function () {
                            return __generator(this, function (_a) {
                                switch (_a.label) {
                                    case 0:
                                        wrapper.error = error;
                                        return [4 /*yield*/, executePlugins_1.default(wrapper.plugins.onError, wrapper, lambdaCallback, PluginType_1.default.ERROR)];
                                    case 1:
                                        _a.sent();
                                        return [2 /*return*/, executeLambdaCallback()];
                                }
                            });
                        }); });
                        _a = [];
                        for (_b in preHandlerHookList)
                            _a.push(_b);
                        _i = 0;
                        _f.label = 1;
                    case 1:
                        if (!(_i < _a.length)) return [3 /*break*/, 4];
                        index = _a[_i];
                        return [4 /*yield*/, executePlugins_1.default(wrapper.plugins[preHandlerHookList[index]], wrapper, errorHandler)];
                    case 2:
                        _f.sent();
                        _f.label = 3;
                    case 3:
                        _i++;
                        return [3 /*break*/, 1];
                    case 4: return [4 /*yield*/, executeHandler_1.default(lambdaHandler, wrapper, errorHandler)];
                    case 5:
                        _f.sent();
                        _c = [];
                        for (_d in postHandlerHookList)
                            _c.push(_d);
                        _e = 0;
                        _f.label = 6;
                    case 6:
                        if (!(_e < _c.length)) return [3 /*break*/, 9];
                        index = _c[_e];
                        return [4 /*yield*/, executePlugins_1.default(wrapper.plugins[postHandlerHookList[index]], wrapper, errorHandler)];
                    case 7:
                        _f.sent();
                        _f.label = 8;
                    case 8:
                        _e++;
                        return [3 /*break*/, 6];
                    case 9: return [2 /*return*/, executeLambdaCallback()];
                }
            });
        });
    });
    wrapper.plugins = plugins;
    wrapper.register = register;
    return wrapper;
};
exports.default = middleware;


/***/ })

/******/ });
});
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