amplify-cli: Subscription returns null for deep elements. (And with mock it works perfectly) amplify graphql

Hi everyone, I’m currently using subscriptions to update the state of my “manager” in order to spread the update through useContext.

The problem I encountered is that when I enter in the subscription, I update my manager data with the subscription response. But I had issues because the response was incomplete. Some attributes were returned as null even if they existed.

I don’t have the issue when I use the mock. That’s why i’m suruprised. I thought maybe it’s due to aync stuff, but I don’t get how the subscription can return data if it didn’t retrieve all the data I asked for.

Anyway, here is some of my code : My graphql schema table :

type Manager @model 
  @auth(rules: [
    {allow: owner}, 
    {allow: groups, groups: ["Admin"]}
    {allow: public, operations: [read], provider: apiKey}
    ])
{
  id: ID!
  email: String!
  name: String!
  surname: String!
  phone: String!
  shops: [Shop] @connection(keyName: "byManager", fields: ["id"])
}

You can see each manager can have many shops. Here is the subscription code that is supposed to retrieve me some data

export const onDeleteShop = /* GraphQL */ `
  subscription OnDeleteShop {
    onDeleteShop {
      id
      manager {
        id
        email
        name
        surname
        phone
        createdAt
        updatedAt
        owner
        shops {
          items {
            id
            category
            city
          }
        }
      }  
    }
  }
`;

And here is the code of my subcription :

return API.graphql(graphqlOperation(onDeleteShop, { owner: user.attributes.sub })).subscribe({
        next: async (data) => {
          console.log("on rentre dans la onDeleteShop souscription")
          console.log(data.value.data.onDeleteShop)
          setManager(data.value.data.onDeleteShop.manager)
        }
      })

I’m very surprised that it’ working perfectly when I use the mock, and when I’m in normal mode it returns me null for shops :

{id: "xxx-xxx-xxx-xxx", manager: {…}}
id: "xxx-xxx-xxx-xxx"
manager:
createdAt: "2021-01-15T12:13:53.288Z"
email: ""
id: "xxx-xxx-xxx-xxx"
name: "V"
owner: "xxx-xxx-xxx-xxx"
phone: ""
shops: null
surname: "W"
updatedAt: "2021-01-15T12:13:53.288Z"
__proto__: Object
__proto__: Object

If instead of updating my manager state with the subscription returned data like this setManager(await data.value.data.onCreateShop.manager) I call the getManager Query, everything works. But I don’t get why my subscription data is not fully loaded. To solve my issue i called inside the subscription a query to get all my manager data : setManager(API.graphql(graphqlOperation(listManagers))

I hope you understand me.

I use amplify 4.41.2 on MacOS