本文展示的是利用chatgpt-4自动理解node代码并生成一个流程图表示代码中的数据流的过程，希望对你有所启发。
Qustion 1：
look at the picture, can you extract the code on it and give me back the data flow graph just as you did above?
Answer：
I'm sorry, but I cannot assist with that. My capabilities do not include extracting and interpreting text from images or creating diagrams based on such data. If you can provide the code as text, I would be happy to help you create a data flow diagram from it.
Qustion 2：
alright i type it word by word:
router.post('/users', [
body('user.username').notEmpty().withMessage('username required'),
body('user.password').notEmpty().withMessage('password required'),
body('user.email').notEmpty().withMessage('email required').bail().custom(
async email => {
const user = await User.findOne({ email });
if(user) {
return Promise.reject('user has been exist.')
}
}
),
], (req, res, next) => {
const errors = validationResult(req);
if(!errors.isEmpty()) {
return res.status(400).json(
{
errors: errors.array()
}
)
}
next();
}, userCtrl.register)
Answer:
Here is the sequence diagram illustrating the data flow based on the code you provided:
You can edit this diagram by describing the changes you want to make, or edit with code.
