serverless-offline-streams/dist/index.js

This plugin provides support for event driven systems using Serverless Offline

"use strict";
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    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) : adopt(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 };
    }
};
exports.__esModule = true;
var logging_1 = require("./logging");
var constants_1 = require("./constants");
var SQStreamHandler_1 = require("./sqs/SQStreamHandler");
var DynamoDBStreamHandler_1 = require("./dynamodb/DynamoDBStreamHandler");
var PluginConfiguration_1 = require("./PluginConfiguration");
var utils_1 = require("./utils");
var objectMerge = require("lodash.merge");
var ServerlessOfflineStreamsPlugin = /** @class */ (function () {
    function ServerlessOfflineStreamsPlugin(serverless, cliOptions) {
        this.serverless = serverless;
        this.commands = [];
        this.activeHandlers = [];
        (0, logging_1.setLog)(function () {
            var _a;
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            return (_a = serverless.cli).log.apply(_a, args);
        });
        this.options = mergeOptions(serverless, cliOptions);
        (0, logging_1.logDebug)('options:', JSON.stringify(this.options || {}, undefined, 2));
        this.hooks = {
            "offline:start:init": this.start.bind(this),
            "offline:start:end": this.end.bind(this)
        };
    }
    ServerlessOfflineStreamsPlugin.prototype.start = function () {
        return __awaiter(this, void 0, void 0, function () {
            var config;
            return __generator(this, function (_a) {
                config = (0, PluginConfiguration_1.validateConfig)(objectMerge((0, PluginConfiguration_1.getDefaultPluginConfiguration)(), (0, utils_1.getPluginConfiguration)(this.serverless)));
                (0, logging_1.logDebug)("Plugin Config", JSON.stringify(config, undefined, 2));
                if (config.dynamodb.enabled) {
                    (0, logging_1.logDebug)("DynamoDB handler is enabled");
                    this.activeHandlers.push(new DynamoDBStreamHandler_1.DynamoDBStreamHandler(this.serverless, this.options));
                }
                if (config.sqs.enabled) {
                    (0, logging_1.logDebug)("SQS handler is enabled");
                    this.activeHandlers.push(new SQStreamHandler_1.SQStreamHandler(this.serverless, this.options, config.sqs));
                }
                return [2 /*return*/, Promise.all(this.activeHandlers.map(function (h) { return h.start(); }))];
            });
        });
    };
    ServerlessOfflineStreamsPlugin.prototype.end = function () {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                return [2 /*return*/, Promise.all(this.activeHandlers.map(function (h) { return h.shutdown(); }))];
            });
        });
    };
    return ServerlessOfflineStreamsPlugin;
}());
exports["default"] = ServerlessOfflineStreamsPlugin;
var mergeOptions = function (serverless, cliOptions) {
    var _a = serverless.service.custom, custom = _a === void 0 ? {} : _a;
    var customOptions = custom[constants_1.SLS_CUSTOM_OPTION];
    var offlineOptions = custom[constants_1.SLS_OFFLINE_OPTION];
    var extraOptions = {
        region: serverless.service.provider.region
    };
    return __assign(__assign(__assign(__assign({}, offlineOptions), customOptions), extraOptions), cliOptions);
};
module.exports = ServerlessOfflineStreamsPlugin;