Why is this IndexedDB put command failing? Error: DataError: DOM IDBDatabase Exception 0

Question

I have successfully added the following to the objectStore when I created it:

{ name: "John Doe", age: 21 }

I used the options:

{ keyPath: "id", autoIncrement: true }

I am able to find that record and it shows the id = 1. However, when I run this command below, it throws an error:

var store = db.transaction( [ "employees" ], "readwrite" ).objectStore( "employees" );
var request = store.put( { name: "John Doe", age: 32 }, 1 );

This throws:

DataError: DOM IDBDatabase Exception 0

Does anyone know what's wrong? Am I specifying the key incorrectly?

Update

The IndexedDB spec states that the second parameter should be allowed:

interface IDBObjectStore {
    ...
    IDBRequest put (any value, optional any key);
    ...
};

However, it doesn't work, but this does work:

store.put( { name: "John Doe", age: 32, id: 1 } );

That is a bug to require that. Unless I'm still doing something incorrectly.

Answer 1

The error means (see here for full list):

Data provided to an operation does not meet requirements.

The object store uses in-line keys and the key parameter was provided.

You are specifying a keypath which instruct the store to use in-line keys, but as you specified an out-of-line key as second parameter to put it will fail.