@redocly/openapi-core/lib/rules/common/operation-operationId-unique.js

See https://github.com/Redocly/openapi-cli

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.OperationIdUnique = void 0;
const OperationIdUnique = () => {
    const seenOperations = new Set();
    return {
        Operation(operation, { report, location }) {
            if (!operation.operationId)
                return;
            if (seenOperations.has(operation.operationId)) {
                report({
                    message: 'Every operation must have a unique `operationId`.',
                    location: location.child([operation.operationId]),
                });
            }
            seenOperations.add(operation.operationId);
        },
    };
};
exports.OperationIdUnique = OperationIdUnique;