Express-validator check if email existed with MySQL





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0















Im using express-validator to check if the req.body entered is valid and to check if there is duplicate email in the MySQL database



Here is my code:



  router.post(
"/signup",
[
body("uemail","email is not valid")
.isEmail()
.normalizeEmail()
.custom(async (email, {req} )=>{

const queryString = "SELECT uid FROM EarlyUsers WHERE `uemail` = ?";
return await connection.query(queryString, [email], (err, rows, fields) => {
if (err) {
console.log(err)
}else {
if (rows.length != 0) {
return false
} else {
return true
}
}
});

})
,
body("uname").isLength({ min: 5 })
],
authControllers.signUp
);


I dont know why this custom validator does not work.
I've tried to throw new Error instead of return false, but it just crash the whole thing . I really need help with this










share|improve this question























  • I am also facing same problem. did you solved this problem.

    – Yogesh Shakya
    Mar 2 at 8:43


















0















Im using express-validator to check if the req.body entered is valid and to check if there is duplicate email in the MySQL database



Here is my code:



  router.post(
"/signup",
[
body("uemail","email is not valid")
.isEmail()
.normalizeEmail()
.custom(async (email, {req} )=>{

const queryString = "SELECT uid FROM EarlyUsers WHERE `uemail` = ?";
return await connection.query(queryString, [email], (err, rows, fields) => {
if (err) {
console.log(err)
}else {
if (rows.length != 0) {
return false
} else {
return true
}
}
});

})
,
body("uname").isLength({ min: 5 })
],
authControllers.signUp
);


I dont know why this custom validator does not work.
I've tried to throw new Error instead of return false, but it just crash the whole thing . I really need help with this










share|improve this question























  • I am also facing same problem. did you solved this problem.

    – Yogesh Shakya
    Mar 2 at 8:43














0












0








0








Im using express-validator to check if the req.body entered is valid and to check if there is duplicate email in the MySQL database



Here is my code:



  router.post(
"/signup",
[
body("uemail","email is not valid")
.isEmail()
.normalizeEmail()
.custom(async (email, {req} )=>{

const queryString = "SELECT uid FROM EarlyUsers WHERE `uemail` = ?";
return await connection.query(queryString, [email], (err, rows, fields) => {
if (err) {
console.log(err)
}else {
if (rows.length != 0) {
return false
} else {
return true
}
}
});

})
,
body("uname").isLength({ min: 5 })
],
authControllers.signUp
);


I dont know why this custom validator does not work.
I've tried to throw new Error instead of return false, but it just crash the whole thing . I really need help with this










share|improve this question














Im using express-validator to check if the req.body entered is valid and to check if there is duplicate email in the MySQL database



Here is my code:



  router.post(
"/signup",
[
body("uemail","email is not valid")
.isEmail()
.normalizeEmail()
.custom(async (email, {req} )=>{

const queryString = "SELECT uid FROM EarlyUsers WHERE `uemail` = ?";
return await connection.query(queryString, [email], (err, rows, fields) => {
if (err) {
console.log(err)
}else {
if (rows.length != 0) {
return false
} else {
return true
}
}
});

})
,
body("uname").isLength({ min: 5 })
],
authControllers.signUp
);


I dont know why this custom validator does not work.
I've tried to throw new Error instead of return false, but it just crash the whole thing . I really need help with this







mysql node.js express express-validator






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asked Nov 16 '18 at 19:39









HafiziHafizi

174




174













  • I am also facing same problem. did you solved this problem.

    – Yogesh Shakya
    Mar 2 at 8:43



















  • I am also facing same problem. did you solved this problem.

    – Yogesh Shakya
    Mar 2 at 8:43

















I am also facing same problem. did you solved this problem.

– Yogesh Shakya
Mar 2 at 8:43





I am also facing same problem. did you solved this problem.

– Yogesh Shakya
Mar 2 at 8:43












1 Answer
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oldest

votes


















1














For it to work correctly instead of returning false you reject the Promise.



if (rows.length != 0) {
return Promise.reject("user already exists.");
}





share|improve this answer


























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    1 Answer
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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    For it to work correctly instead of returning false you reject the Promise.



    if (rows.length != 0) {
    return Promise.reject("user already exists.");
    }





    share|improve this answer






























      1














      For it to work correctly instead of returning false you reject the Promise.



      if (rows.length != 0) {
      return Promise.reject("user already exists.");
      }





      share|improve this answer




























        1












        1








        1







        For it to work correctly instead of returning false you reject the Promise.



        if (rows.length != 0) {
        return Promise.reject("user already exists.");
        }





        share|improve this answer















        For it to work correctly instead of returning false you reject the Promise.



        if (rows.length != 0) {
        return Promise.reject("user already exists.");
        }






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 18 '18 at 9:09









        DaFois

        2,02441522




        2,02441522










        answered Nov 18 '18 at 8:57









        TKdevlopTKdevlop

        114




        114
































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