Cannot read property 'hasOwnProperty' - react-admin

Question

After an update, if the status code was an 422 i have a notification with this message : Cannot read property 'hasOwnProperty' of undefined
TypeError: Cannot read property 'hasOwnProperty' of undefined
at validateResponseFormat (http://localhost:4100/static/js/0.chunk.js:147058:17)
at http://localhost:4100/static/js/0.chunk.js:147133:43
at step (http://localhost:4100/static/js/0.chunk.js:147018:19)
at Object.next (http://localhost:4100/static/js/0.chunk.js:146948:14)
at next (http://localhost:4100/static/js/0.chunk.js:227925:27)
at currCb (http://localhost:4100/static/js/0.chunk.js:228012:7)
And my api is sending this reponse :
{
"error": {
"details": [{
"status": "week",
"message": "",
"target": "ModelState"
}
],
"innerError": null,
"status": "422",
"message": "Invalid model",
"target": "ModelState"
}
}

Answer 1

I had this error minutes ago and found your question with no answers. It could be related with dataProvider.js.
In my case, I solved it editing the type case (GET_LIST, GET_ONE, UPDATE, etc.) into the switch. I made a data mapping into the type, specifying the resource from which I am receiving the data. Better see the code below:
// dataProvider.js
...
switch(type){
case GET_ONE:{
if (resource === 'users'){
return {
data: {
id: json.id,
email: json.email,
isAdmin: json.isAdmin,
password: json.password
}
}
}
...
}
As a disclaimer, I am quite new to React-Admin and React. But I hope this answer to be helpful to somebody who finds this question.