typeorm-transactional-async-callbacks
Version:
A Transactional Method Decorator for typeorm that uses cls-hooked to handle and propagate transactions between different repositories and service methods. Inpired by Spring Trasnactional Annotation and Sequelize CLS
150 lines • 8.85 kB
JavaScript
;
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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.wrapInTransaction = void 0;
var common_1 = require("../common");
var propagation_1 = require("../enums/propagation");
var hooks_1 = require("../hooks");
var transactional_1 = require("../errors/transactional");
var wrapInTransaction = function (fn, options) {
// eslint-disable-next-line func-style
function wrapper() {
var _this = this;
var _a, _b;
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var context = (0, common_1.getTransactionalContext)();
if (!context) {
throw new Error('No CLS namespace defined in your app ... please call initializeTransactionalContext() before application start.');
}
var connectionName = (_a = options === null || options === void 0 ? void 0 : options.connectionName) !== null && _a !== void 0 ? _a : 'default';
var dataSource = (0, common_1.getDataSourceByName)(connectionName);
if (!dataSource) {
throw new Error('No data sources defined in your app ... please call addTransactionalDataSources() before application start.');
}
var propagation = (_b = options === null || options === void 0 ? void 0 : options.propagation) !== null && _b !== void 0 ? _b : propagation_1.Propagation.REQUIRED;
var isolationLevel = options === null || options === void 0 ? void 0 : options.isolationLevel;
var runOriginal = function () { return fn.apply(_this, args); };
var runWithNewHook = function () { return (0, hooks_1.runInNewHookContext)(context, runOriginal); };
var runWithNewTransaction = function () {
var transactionCallback = function (entityManager) { return __awaiter(_this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
(0, common_1.setEntityManagerByDataSourceName)(context, connectionName, entityManager);
_a.label = 1;
case 1:
_a.trys.push([1, , 3, 4]);
return [4 /*yield*/, runOriginal()];
case 2:
result = _a.sent();
return [2 /*return*/, result];
case 3:
(0, common_1.setEntityManagerByDataSourceName)(context, connectionName, null);
return [7 /*endfinally*/];
case 4: return [2 /*return*/];
}
});
}); };
if (isolationLevel) {
return (0, hooks_1.runInNewHookContext)(context, function () {
return dataSource.transaction(isolationLevel, transactionCallback);
});
}
else {
return (0, hooks_1.runInNewHookContext)(context, function () {
return dataSource.transaction(transactionCallback);
});
}
};
return context.run(function () { return __awaiter(_this, void 0, void 0, function () {
var currentTransaction, _a, result;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
currentTransaction = (0, common_1.getEntityManagerByDataSourceName)(context, connectionName);
_a = propagation;
switch (_a) {
case propagation_1.Propagation.MANDATORY: return [3 /*break*/, 1];
case propagation_1.Propagation.NESTED: return [3 /*break*/, 2];
case propagation_1.Propagation.NEVER: return [3 /*break*/, 3];
case propagation_1.Propagation.NOT_SUPPORTED: return [3 /*break*/, 4];
case propagation_1.Propagation.REQUIRED: return [3 /*break*/, 7];
case propagation_1.Propagation.REQUIRES_NEW: return [3 /*break*/, 8];
case propagation_1.Propagation.SUPPORTS: return [3 /*break*/, 9];
}
return [3 /*break*/, 10];
case 1:
if (!currentTransaction) {
throw new transactional_1.TransactionalError("No existing transaction found for transaction marked with propagation 'MANDATORY'");
}
return [2 /*return*/, runOriginal()];
case 2: return [2 /*return*/, runWithNewTransaction()];
case 3:
if (currentTransaction) {
throw new transactional_1.TransactionalError("Found an existing transaction, transaction marked with propagation 'NEVER'");
}
return [2 /*return*/, runWithNewHook()];
case 4:
if (!currentTransaction) return [3 /*break*/, 6];
(0, common_1.setEntityManagerByDataSourceName)(context, connectionName, null);
return [4 /*yield*/, runWithNewHook()];
case 5:
result = _b.sent();
(0, common_1.setEntityManagerByDataSourceName)(context, connectionName, currentTransaction);
return [2 /*return*/, result];
case 6: return [2 /*return*/, runOriginal()];
case 7:
if (currentTransaction) {
return [2 /*return*/, runOriginal()];
}
return [2 /*return*/, runWithNewTransaction()];
case 8: return [2 /*return*/, runWithNewTransaction()];
case 9: return [2 /*return*/, currentTransaction ? runOriginal() : runWithNewHook()];
case 10: return [2 /*return*/];
}
});
}); });
}
return wrapper;
};
exports.wrapInTransaction = wrapInTransaction;
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