Send a better response when an error occurred

[evans-g-crsj]

An error 504 (Timeout) is received when a bad request (at least the following one) is made.

When the profile is updated but one of it's field is invalid a timeout occurs. For instance,

if profile = {...roles: ['researcher'], ...} is written like this profile = {...role: 'researcher', ...} then a 504 is received.

steps to reproduce
/////////////////////////////////
Endpoint: https://kf-persona-api-qa.kidsfirstdrc.org/graphql
/////////////////////////////////
graphql query :

mutation($record: UpdateByIdUserModelInput!) {
userUpdate(record: $record) {
record {

_id
title
firstName
lastName
egoId
roles
acceptedTerms
email
institutionalEmail
eraCommonsID
department
story
bio
jobTitle
institution
addressLine1
addressLine2
city
state
country
zip
phone
website
googleScholarId
twitter
facebook
github
linkedin
orchid
interests
acceptedKfOptIn
acceptedNihOptIn
acceptedDatasetSubscriptionKfOptIn
isPublic
sets {
name
size
type
setId
}
}
}
}
/////////////////////////////////
variables :
{"variables":{"record":{"_id":"5d5d9905b70d02001a173fb8","title":"dr","firstName":"Evans","lastName":"Girard","egoId":"64da5ffa-871e-4f2f-bee9-6d2508ae9786","roles":["research"],"acceptedTerms":true,"email":"[email protected]","institutionalEmail":"[email protected]","eraCommonsID":"","department":"department","story":"","bio":"Here's a test for my bio ","jobTitle":"A very good role","institution":"this is an institution","addressLine1":"1425 309 rue DesCypres","addressLine2":"address 2","city":"Trrr","state":"Qc","country":"Canada","zip":"11111111111","phone":"","website":"https://www.mysite.com","googleScholarId":"","twitter":"www.twitter/test.com","facebook":"https://www.facebook/test.com","github":"www.github/test.com","linkedin":"https://www.linkedin/test.com","orchid":"orcidid3784738437","interests":["ewing sarcoma: genetic risk","cancer","childhood cancer"],"acceptedKfOptIn":false,"acceptedNihOptIn":false,"acceptedDatasetSubscriptionKfOptIn":false,"isPublic":true,"sets":[],"role":"research"}},"query":"mutation($record: UpdateByIdUserModelInput!) {userUpdate(record: $record) {record {_idtitlefirstNamelastNameegoIdrolesacceptedTermsemailinstitutionalEmaileraCommonsIDdepartmentstorybiojobTitleinstitutionaddressLine1addressLine2citystatecountryzipphonewebsitegoogleScholarIdtwitterfacebookgithublinkedinorchidinterestsacceptedKfOptInacceptedNihOptInacceptedDatasetSubscriptionKfOptInisPublicsets {namesizetypesetId}}}}"}
/////////////////////////////////

[jberube]

A 401 "Bad Request" should be returned in that situation : https://tools.ietf.org/html/rfc7231#section-6.5.1