Give a written report to the restaurant owner 31 days in advance, and then you can resign after 31 days.

Resignation only needs to be notified to the company, and it doesn't need the approval of the company or the boss, and it doesn't matter whether they let people go or not. It is suggested to submit a written report to the unit by courier, keep the courier number and go through the resignation formalities after 31 days.

if the company withholds wages or something like that, it can prove that it has given notice in advance with the contract and the express delivery form, and ask the company to pay for the company's rights and interests.