reshuffle
Version:
Reshuffle is a fast, unopinionated, minimalist integration framework
302 lines • 14.1 kB
JavaScript
"use strict";
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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__setModuleDefault(result, mod);
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var __generator = (this && this.__generator) || function (thisArg, body) {
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function verb(n) { return function (v) { return step([n, v]); }; }
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}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
exports.__esModule = true;
exports.Reshuffle = void 0;
var express_1 = __importDefault(require("express"));
var nanoid_1 = require("nanoid");
var availableConnectors = __importStar(require("./connectors"));
var persistency_1 = require("./persistency");
var Logger_1 = require("./Logger");
var Reshuffle = /** @class */ (function () {
function Reshuffle(loggerOptions) {
this.middleware = [express_1["default"].json(), express_1["default"].urlencoded({ extended: true })];
this.availableConnectors = availableConnectors;
this.port = parseInt(process.env.PORT, 10) || 8000;
this.httpDelegates = {};
this.registry = { connectors: {}, handlers: {}, common: {} };
this.logger = Logger_1.createLogger(loggerOptions);
this.logger.info('Reshuffle Initializing');
}
Reshuffle.prototype.addMiddleware = function (middleware) {
this.middleware.push(middleware);
};
Reshuffle.prototype.prepareWebServer = function () {
if (!this.registry.common.webserver) {
this.registry.common.webserver = express_1["default"]();
this.registry.common.webserver.use(this.middleware);
}
return this.registry.common.webserver;
};
Reshuffle.prototype.register = function (connector) {
connector.app = this;
this.registry.connectors[connector.id] = connector;
return this;
};
Reshuffle.prototype.unregister = function (connector) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, connector.stop()];
case 1:
_a.sent();
delete this.registry.connectors[connector.id];
return [2 /*return*/];
}
});
});
};
Reshuffle.prototype.getConnector = function (connectorId) {
if (!this.registry.connectors[connectorId]) {
this.logger.error("Could not find connector [id=" + connectorId + "]");
}
return this.registry.connectors[connectorId];
};
Reshuffle.prototype.registerHTTPDelegate = function (path, delegate) {
this.httpDelegates[path] = this.httpDelegates[path] || new HttpMultiplexer(path);
this.httpDelegates[path].delegates.push(delegate);
return this;
};
//we might to add a fine tuned method in the future that just removes one delegete
Reshuffle.prototype.unregisterHTTPDelegate = function (path) {
var httpMultiplexer = this.httpDelegates[path];
if (httpMultiplexer) {
httpMultiplexer.delegates = [];
}
};
Reshuffle.prototype.when = function (eventConfiguration, handler) {
var handlerWrapper = typeof handler === 'object'
? handler
: {
handle: handler,
id: nanoid_1.nanoid()
};
if (this.registry.handlers[eventConfiguration.id]) {
this.registry.handlers[eventConfiguration.id].push(handlerWrapper);
}
else {
this.registry.handlers[eventConfiguration.id] = [handlerWrapper];
}
this.logger.info('Reshuffle Registering event', eventConfiguration.id);
return this;
};
Reshuffle.prototype.start = function (port, callback) {
var _this = this;
this.port = port || this.port;
// Start all connectors
Object.values(this.registry.connectors).forEach(function (connector) { return connector.start(); });
// Start the webserver if we have http delegates
if (Object.keys(this.httpDelegates).length) {
var webserver_1 = this.prepareWebServer();
if (process.env.RESHUFFLE_HEALTH_PATH) {
webserver_1.use(process.env.RESHUFFLE_HEALTH_PATH, function (req, res) {
return res.status(200).send({ ok: true, uptime: process.uptime() });
});
}
var specificPaths = Object.keys(this.httpDelegates).filter(function (p) { return !p.includes(':'); });
var genericPathsOrdered = Object.keys(this.httpDelegates)
.filter(function (p) { return p.includes(':'); })
.sort()
.reverse();
// Moves all generic routes (containing :) at the end, with /specific/generic first (e.g. /foo/:id before /:bar)
specificPaths.concat(genericPathsOrdered).forEach(function (path) {
var httpMultiplexer = _this.httpDelegates[path];
webserver_1.all(path, httpMultiplexer.handle.bind(httpMultiplexer));
});
webserver_1.all('/webhooks/*', function (req, res) {
var errorMessage = "Webhook not registered";
_this.logger.info(errorMessage + " for " + req.method + " " + req.url);
return res.status(501).send(errorMessage);
});
webserver_1.all('*', function (req, res) {
var errorMessage = "No handler registered for " + req.method + " " + req.url;
_this.logger.info(errorMessage);
return res.status(501).send(errorMessage);
});
this.httpServer = webserver_1.listen(this.port, function () {
_this.logger.info('Reshuffle Web server listening on port', _this.port);
});
}
callback && callback();
};
Reshuffle.prototype.stopWebServer = function () {
var _a;
(_a = this.httpServer) === null || _a === void 0 ? void 0 : _a.close();
};
Reshuffle.prototype.restart = function (port) {
var _this = this;
this.stopWebServer();
this.start(port, function () {
_this.logger.info('Reshuffle Restarted');
});
};
Reshuffle.prototype.handleEvent = function (eventId, event) {
return __awaiter(this, void 0, void 0, function () {
var eventHandlers, handled, _i, eventHandlers_1, handler, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
eventHandlers = this.registry.handlers[eventId];
if (!eventHandlers || eventHandlers.length === 0) {
return [2 /*return*/, false];
}
handled = true;
_i = 0, eventHandlers_1 = eventHandlers;
_b.label = 1;
case 1:
if (!(_i < eventHandlers_1.length)) return [3 /*break*/, 5];
handler = eventHandlers_1[_i];
_a = handled;
if (!_a) return [3 /*break*/, 3];
return [4 /*yield*/, this.onHandleEvent(handler, event)];
case 2:
_a = (handled = _b.sent());
_b.label = 3;
case 3:
_a;
_b.label = 4;
case 4:
_i++;
return [3 /*break*/, 1];
case 5: return [2 /*return*/, handled];
}
});
});
};
Reshuffle.prototype.onHandleEvent = function (handler, event) {
return __awaiter(this, void 0, void 0, function () {
var error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.logger.defaultMeta = { handlerId: handler.id };
_a.label = 1;
case 1:
_a.trys.push([1, 3, 4, 5]);
return [4 /*yield*/, handler.handle(event, this)];
case 2:
_a.sent();
return [2 /*return*/, true];
case 3:
error_1 = _a.sent();
this.logger.error(error_1.stack);
return [2 /*return*/, false];
case 4:
this.logger.defaultMeta = {};
return [7 /*endfinally*/];
case 5: return [2 /*return*/];
}
});
});
};
Reshuffle.prototype.setPersistentStore = function (adapter) {
this.registry.common.persistentStore = adapter;
return adapter;
};
Reshuffle.prototype.getPersistentStore = function () {
return this.registry.common.persistentStore || this.setPersistentStore(new persistency_1.MemoryStoreAdapter());
};
Reshuffle.prototype.getLogger = function () {
return this.logger;
};
return Reshuffle;
}());
exports.Reshuffle = Reshuffle;
exports["default"] = Reshuffle;
var HttpMultiplexer = /** @class */ (function () {
function HttpMultiplexer(originalPath) {
this.originalPath = originalPath;
this.delegates = [];
}
HttpMultiplexer.prototype.handle = function (req, res, next) {
return __awaiter(this, void 0, void 0, function () {
var handled, _i, _a, delegate;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
req.originalPath = this.originalPath;
handled = false;
if (!(this.delegates.length > 0)) return [3 /*break*/, 4];
_i = 0, _a = this.delegates;
_b.label = 1;
case 1:
if (!(_i < _a.length)) return [3 /*break*/, 4];
delegate = _a[_i];
if (handled) {
return [3 /*break*/, 4];
}
return [4 /*yield*/, delegate.handle(req, res, next)];
case 2:
handled = _b.sent();
_b.label = 3;
case 3:
_i++;
return [3 /*break*/, 1];
case 4:
if (!handled) {
next();
}
return [2 /*return*/];
}
});
});
};
return HttpMultiplexer;
}());
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