@transactional/prisma/dist/flat-transaction.js

"@transactional/prisma" is an npm package that offers a "@Transactional" method decorator for running your queries inside a transaction seamlessly. It achieves this by leveraging AsyncLocalStorage.

"use strict";
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());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.transaction = void 0;
const ROLLBACK = { [Symbol.for("prisma.client.extension.rollback")]: true };
function transaction(prisma, options) {
    return __awaiter(this, void 0, void 0, function* () {
        if (!isTransactionSupported(prisma)) {
            throw new Error("Transactions are not supported by this client");
        }
        let setTxClient;
        let commit;
        let rollback;
        const txPromise = new Promise((resolve, reject) => {
            commit = () => resolve(undefined);
            rollback = () => reject(ROLLBACK);
        });
        const txClient = new Promise((resolve, reject) => {
            setTxClient = (tx) => resolve(tx);
        });
        const tx = prisma["$transaction"]((tx) => {
            setTxClient(tx);
            return txPromise;
        }, options);
        return new Proxy(yield txClient, {
            get(target, prop) {
                if (prop === "$commit") {
                    return () => __awaiter(this, void 0, void 0, function* () {
                        commit();
                        // await for tx to be resolved before resolving
                        yield tx;
                    });
                }
                if (prop === "$rollback") {
                    return () => __awaiter(this, void 0, void 0, function* () {
                        rollback();
                        try {
                            yield tx;
                        }
                        catch (error) {
                            // rollback function should resolve with `undefined` in case it rolledback
                            // successfully
                            if (error[Symbol.for("prisma.client.extension.rollback")]) {
                                return undefined;
                            }
                            // and it should throw any other errors thrown by tx
                            throw error;
                        }
                    });
                }
                return target[prop];
            },
        });
    });
}
exports.transaction = transaction;
function isTransactionSupported(prisma) {
    if ("$transaction" in prisma &&
        typeof prisma["$transaction"] === "function") {
        return true;
    }
    else {
        return false;
    }
}