Hello,
tnx for the link, I'va been looking into this one too ......... 
I still got an error back when testing:
Required field(s) name, email, password is missing or empty
{
"status":"400 Bad Request",
"url":"http://www.wijhoudenvanvoetbal.nl/res...",
"response":{
"error":true,
"message":"Required field(s) name, email, password is missing or empty"
}
}
Under the tab Settings, the method = POST, data-type and content-type = JSON. I use the Appary.io proxy
Under the tab Reeust I have the columns, name, email and password with the value {name}, {email} and {password}. All of them are strings and no header selected.
Under the tab Response I have id and name
What is going wrong about this settings?
Kind regards,
Arie