req.params 返回未定义

Question

我正在尝试从参数中取回 ID，但它不断发回 undefiened，这里会出现什么问题，我该如何解决？

这是路线：

app.delete(`${api_version}/delete-branch/:id`, verifyToken, branches.deleteBranch)

这是 controller：

exports.deleteBranch = (req, result) => {
const {branch_id}  = req.params
console.log(branch_id) // => returns undefined
if(branch_id === undefined) {
    result.status(404).send({
        message: 'This branch does not exist',
        statusCode: 404
    })
} else {
    // console.log(req.params)
    Branches.deleteBranch(branch_id, (err, data) => {
        if (err) {
            result.status(500).send({
                message: err.message
            })
        } else { 
            result.status(200).send({
                message: 'Branch deleted successfully',
                statusCode: 200,
                data
            })
        }
    })
}
}

Answer 1

您需要像这样破坏req.params ：

const {id} = req.params而不是：
const {branch_id} = req.params

或者将路线定义如下：
app.delete(`${api_version}/delete-branch/:branch_id`, verifyToken, branches.deleteBranch)
然后 destruct const {branch_id} = req.params ;