createApprovalGate

function createApprovalGate(options: CreateApprovalGateOptions): ScheduleRouteRunner;

Defined in: src/mft/approvals.ts:250

Wraps a route runner with an approval gate.

The returned runner creates an approval request, waits for resolution, and dispatches the underlying runner only when the request is approved. Rejection surfaces an ApprovalRejectedError. Pair with MftScheduler to implement two-person rules and human-in-the-loop release flows.

Parameters

Parameter	Type	Description
options	CreateApprovalGateOptions	Registry, downstream runner, approval-id derivation, hooks.

Returns

ScheduleRouteRunner

A ScheduleRouteRunner that gates execution behind approval.

Example

import {
  ApprovalRegistry,
  createApprovalGate,
  runRoute,
} from "@zero-transfer/sdk";

const approvals = new ApprovalRegistry();

const gatedRunner = createApprovalGate({
  registry: approvals,
  approvalId: ({ route }) => `release:${route.id}:${Date.now()}`,
  onRequested: (req) => notifyOnCallChannel(req),
  runner: ({ client, route, signal }) => runRoute({ client, route, signal }),
});

// Elsewhere, an authorized operator approves or rejects:
approvals.approve(approvalId, { actor: "alice@example.com" });
// approvals.reject(approvalId, { actor: "bob@example.com", reason: "hold release" });