Not Implemented Exception (ARCH3156)

Key typescript.logging.not-implemented · Severity warning · Category logging

NotImplemented-style placeholder errors are fine during development but must not remain in shipped code paths. They crash at runtime when invoked.

Incorrect

class PaymentService {
  refund(orderId: string): Promise<void> {
    throw new Error("Not implemented");
  }
}

Correct

class PaymentService {
  async refund(orderId: string): Promise<void> {
    const order = await this.repo.find(orderId);
    await this.gateway.reverse(order.transactionId);
    await this.repo.markRefunded(orderId);
  }
}

Fix

Replace placeholder errors with a real implementation or remove the path before shipping.