Hello Mr. Robin Shen, Mr. Steve Luo,

Could you please modify REST API to return the response code for the correct scenario?
Here are some cases
/rest/builds/{invalid_build_id}
/rest/ids?request_id={invalid_request_id}
/rest/files/artifacts/{invalid_build_id}
/rest/configurations?parent_id={blank}
/rest/configurations/{invalid_build_id}
-> return 404/400 instead of 500 when can not find build
Thank you.