gitauth-example-samples.graphql

# To Authenticate
mutation Authenticate($githubCode: String!) {
    authenticate(githubCode: $githubCode) {
        token
        user {
            name
        }
    }
}

# To create a Note
mutation NewNote($text: String!) {
    createNote(text: $text) {
        id
        text
    }
}

# To edit a Note
mutation ChangeNote($id: ID!, $newText: String!) {
    updateNote(id: $id, text: $newText) {
        id
        text
    }
}

# To delete a Note
mutation DeleteNote($id: ID!) {
    deleteNote(id: $id) {
        id
    }
}

# To get your profile and your notes
mutation Me {
    me {
        name
        bio
        notes {
            id
            text
        }
    }
}

Should be Query instead of mutation

mutation Me { me { name bio notes { id text } } }