AWS Amplify - Graphql + Datastore: Variable 'input' has coerced Null value for NonNull type String

Question

Running into a problem with the API generated with aws amplify.

Basically, I keep getting the following warning whenever I try to create one entity and it is not being persisted in DynamoDB.

Variable 'input' has coerced Null value for NonNull type 'String!

The following are the pertinent parts of the Graphql schema I used to create the backend.

enum EntityStatus {
     ACTIVE
     INACTIVE
     ARCHIVED
    }

type Address {
  streetAddress1: String!
  streetAddress2: String
  city: String!
  state: String!
  zipCode: String!
  country: String!
  location: Location!
}

type Location {
  lat: Float
  lng: Float
}

type Tenant
  @model
  @auth(
    rules: [
      { allow: groups, groups: ["Admin", "Coordinator", "Employees"], operations }
      { allow: groups, groups: ["Auditor"], operations: [read] }
    ]
  ) {
  id: ID!
  name: String!
  address: Address!
  phone: AWSPhone!
  email: AWSEmail!
  status: EntityStatus!
  locale: String!
}

The code to create one of the Tenant entities is a simple call

    try {
      return await DataStore.save(new Tenant({ ...values }));
    } catch (error) {
      console.error(error);
    }

The payload going sent by Datastore is as follows:

{
  "name": "Tenant 1",
  "phone": "1234567890",
  "email": "tenant@tenant.com",
  "status": "ACTIVE",
  "address": {
    "city": "Anytown",
    "state": "TAB",
    "zipCode": "12345",
    "country": "US",
    "location": { "lat": 123.12, "lng": 123.12 }
  },
  "locale": "en-US",
  "id": "f8be53bd-b1cb-4cbd-9b64-01fdf930da8a"
}

Here is the full Warning message

[WARN] 40:26.787 DataStore 
Object { localModel: {…}, message: "Variable 'input' has coerced Null value for NonNull type 'String!'", operation: "Create", errorType: undefined, errorInfo: undefined, remoteModel: null }
errorInfo: undefined
errorType: undefined
localModel: Object { id: "f8be53bd-b1cb-4cbd-9b64-01fdf930da8a", name: "Tenant 1", phone: "1234567890", … }
_deleted: undefined
_lastChangedAt: undefined
_version: undefined
address: Object { city: "Anytown", state: "TAB", zipCode: "12345", … }
createdAt: undefined
email: "tenant@tenant.com"
id: "f8be53bd-b1cb-4cbd-9b64-01fdf930da8a"
locale: "en-US"
name: "Tenant 1"
phone: "1234567890"
status: "ACTIVE"
updatedAt: undefined
<prototype>: Object { … }
message: "Variable 'input' has coerced Null value for NonNull type 'String!'"
operation: "Create"
remoteModel: null
<prototype>: Object { … }
react_devtools_backend.js:3973:25

Answer 1

Figured it out. My payload was missing 2 fields.

Wish that the error messages would be more helpful.