関連ワード:  typeerror res json is not a function    typeerror res json is not a function nextjs    typeerror res send is not a function    typeerror res.status(...).json is not a function    error typeerror res.json is not a function    typeerror res status .send is not a function    uncaught (in promise) typeerror res.json is not a function  
結果 : typeerror res json is not a function