@ultipa-graph/ultipa-driver
Version:
NodeJS SDK for Ultipa GQL
120 lines • 15.7 kB
JavaScript
"use strict";
/**
* Transaction service handles transaction lifecycle management.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.TransactionService = void 0;
const services_1 = require("../services");
/**
* Transaction service for managing database transactions.
*/
class TransactionService {
ctx;
constructor(ctx) {
this.ctx = ctx;
}
/**
* Start a new transaction.
*/
async beginTransaction(graphName, readOnly = false, timeout = 0) {
const session = this.ctx.sessions.getSession();
const request = {
session_id: session?.id?.toString() || '0',
graph_name: graphName,
read_only: readOnly,
timeout: Math.floor((timeout || this.ctx.config.timeout || 30000) / 1000), // Convert ms to seconds for gRPC
};
const metadata = this.ctx.getSessionMetadata();
const response = await (0, services_1.promisifyCall)(this.ctx.clients.transactionService, 'Begin', request, metadata);
const txId = parseInt(response.transaction_id || '0', 10);
const sessionId = session?.id || 0;
const timeoutMs = timeout || this.ctx.config.timeout || 30000;
const tx = this.ctx.txManager.begin(txId, sessionId, graphName, readOnly, timeoutMs);
return tx;
}
/**
* Commit a transaction.
*/
async commit(transactionId) {
const session = this.ctx.sessions.getSession();
const request = {
session_id: session?.id?.toString() || '0',
transaction_id: transactionId.toString(),
};
const metadata = this.ctx.getSessionMetadata();
try {
const response = await (0, services_1.promisifyCall)(this.ctx.clients.transactionService, 'Commit', request, metadata);
this.ctx.txManager.commit(transactionId);
return response.success || false;
}
catch (e) {
// Clean up local state even if server commit fails
try {
this.ctx.txManager.rollback(transactionId);
}
catch { }
throw e;
}
}
/**
* Rollback a transaction.
*/
async rollback(transactionId) {
const session = this.ctx.sessions.getSession();
const request = {
session_id: session?.id?.toString() || '0',
transaction_id: transactionId.toString(),
};
const metadata = this.ctx.getSessionMetadata();
try {
const response = await (0, services_1.promisifyCall)(this.ctx.clients.transactionService, 'Rollback', request, metadata);
this.ctx.txManager.rollback(transactionId);
return response.success || false;
}
catch (e) {
// Always clean up local state even if server rollback fails
try {
this.ctx.txManager.rollback(transactionId);
}
catch { }
throw e;
}
}
/**
* Return active transactions for the current session.
*/
async listTransactions() {
const session = this.ctx.sessions.getSession();
const request = {
session_id: session?.id?.toString() || '0',
};
const metadata = this.ctx.getSessionMetadata();
const response = await (0, services_1.promisifyCall)(this.ctx.clients.transactionService, 'ListTransactions', request, metadata);
return (response.transactions || []).map((t) => ({
transactionId: parseInt(t.transaction_id || '0', 10),
sessionId: parseInt(t.session_id || '0', 10),
graphName: t.graph_name || '',
readOnly: t.read_only || false,
createdAt: parseInt(t.created_at || '0', 10),
durationMs: parseInt(t.duration_ms || '0', 10),
internalTxId: t.internal_tx_id || '',
}));
}
/**
* Execute a function within a transaction.
*/
async withTransaction(graphName, fn, readOnly = false) {
const tx = await this.beginTransaction(graphName, readOnly, this.ctx.config.timeout ?? 30000);
try {
const result = await fn(tx.id);
await this.commit(tx.id);
return result;
}
catch (e) {
await this.rollback(tx.id);
throw e;
}
}
}
exports.TransactionService = TransactionService;
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* Transaction service handles transaction lifecycle management.\n */\n\nimport { ServiceContext } from './service-context';\nimport { Transaction } from '../transaction';\nimport { TransactionInfo } from '../types';\nimport { promisifyCall } from '../services';\n\n/**\n * Transaction service for managing database transactions.\n */\nexport class TransactionService {\n  constructor(private ctx: ServiceContext) {}\n\n  /**\n   * Start a new transaction.\n   */\n  async beginTransaction(\n    graphName: string,\n    readOnly: boolean = false,\n    timeout: number = 0\n  ): Promise<Transaction> {\n    const session = this.ctx.sessions.getSession();\n    const request = {\n      session_id: session?.id?.toString() || '0',\n      graph_name: graphName,\n      read_only: readOnly,\n      timeout: Math.floor((timeout || this.ctx.config.timeout || 30000) / 1000), // Convert ms to seconds for gRPC\n    };\n\n    const metadata = this.ctx.getSessionMetadata();\n    const response: any = await promisifyCall(\n      this.ctx.clients.transactionService,\n      'Begin',\n      request,\n      metadata\n    );\n\n    const txId = parseInt(response.transaction_id || '0', 10);\n    const sessionId = session?.id || 0;\n    const timeoutMs = timeout || this.ctx.config.timeout || 30000;\n    const tx = this.ctx.txManager.begin(txId, sessionId, graphName, readOnly, timeoutMs);\n    return tx;\n  }\n\n  /**\n   * Commit a transaction.\n   */\n  async commit(transactionId: number): Promise<boolean> {\n    const session = this.ctx.sessions.getSession();\n    const request = {\n      session_id: session?.id?.toString() || '0',\n      transaction_id: transactionId.toString(),\n    };\n\n    const metadata = this.ctx.getSessionMetadata();\n    try {\n      const response: any = await promisifyCall(\n        this.ctx.clients.transactionService,\n        'Commit',\n        request,\n        metadata\n      );\n\n      this.ctx.txManager.commit(transactionId);\n      return response.success || false;\n    } catch (e) {\n      // Clean up local state even if server commit fails\n      try { this.ctx.txManager.rollback(transactionId); } catch {}\n      throw e;\n    }\n  }\n\n  /**\n   * Rollback a transaction.\n   */\n  async rollback(transactionId: number): Promise<boolean> {\n    const session = this.ctx.sessions.getSession();\n    const request = {\n      session_id: session?.id?.toString() || '0',\n      transaction_id: transactionId.toString(),\n    };\n\n    const metadata = this.ctx.getSessionMetadata();\n    try {\n      const response: any = await promisifyCall(\n        this.ctx.clients.transactionService,\n        'Rollback',\n        request,\n        metadata\n      );\n\n      this.ctx.txManager.rollback(transactionId);\n      return response.success || false;\n    } catch (e) {\n      // Always clean up local state even if server rollback fails\n      try { this.ctx.txManager.rollback(transactionId); } catch {}\n      throw e;\n    }\n  }\n\n  /**\n   * Return active transactions for the current session.\n   */\n  async listTransactions(): Promise<TransactionInfo[]> {\n    const session = this.ctx.sessions.getSession();\n    const request = {\n      session_id: session?.id?.toString() || '0',\n    };\n\n    const metadata = this.ctx.getSessionMetadata();\n    const response: any = await promisifyCall(\n      this.ctx.clients.transactionService,\n      'ListTransactions',\n      request,\n      metadata\n    );\n\n    return (response.transactions || []).map((t: any) => ({\n      transactionId: parseInt(t.transaction_id || '0', 10),\n      sessionId: parseInt(t.session_id || '0', 10),\n      graphName: t.graph_name || '',\n      readOnly: t.read_only || false,\n      createdAt: parseInt(t.created_at || '0', 10),\n      durationMs: parseInt(t.duration_ms || '0', 10),\n      internalTxId: t.internal_tx_id || '',\n    }));\n  }\n\n  /**\n   * Execute a function within a transaction.\n   */\n  async withTransaction<T>(\n    graphName: string,\n    fn: (txId: number) => Promise<T>,\n    readOnly: boolean = false\n  ): Promise<T> {\n    const tx = await this.beginTransaction(graphName, readOnly, this.ctx.config.timeout ?? 30000);\n    try {\n      const result = await fn(tx.id);\n      await this.commit(tx.id);\n      return result;\n    } catch (e) {\n      await this.rollback(tx.id);\n      throw e;\n    }\n  }\n}\n"]}