salix/modules/worker/back/methods/operator/add.js

const UserError = require('vn-loopback/util/user-error');
module.exports = Self => {
    Self.remoteMethodCtx('add', {
        description: 'Add a new operator',
        accessType: 'WRITE',
        http: {
            path: `/add`,
            verb: 'POST'
        }
    });

    Self.add = async(ctx, options) => {
        const userId = ctx.req.accessToken.userId;
        const myOptions = {};
        const $t = ctx.req.__;
        let tx;

        if (typeof options == 'object')
            Object.assign(myOptions, options);

        if (!myOptions.transaction) {
            tx = await Self.beginTransaction({});
            myOptions.transaction = tx;
        }

        try {
            await Self.create({
                workerFk: userId
            });
            if (tx) await tx.commit();
        } catch (e) {
            if (tx) await tx.rollback();
            throw new UserError($t('This worker does not exist'));
        }
    };
};