I am using `graphql-js-schema-fetch` to fetch Shopify schema, but it throws an error and I do not know how to fix it.

Using CLI:

```
graphql-js-schema-fetch https://myspati-com.myshopify.com/api/graphql --header "Content-Type: application/graphql" --header "X-Shopify-Storefront-Access-Token: <acces-token>"

```

This is the error:

```
{
    "errors": [{
        "message": "Parse error on \"query\" (STRING) at [1, 2]",
        "locations": [{
            "line": 1,
            "column": 2
        }]
    }]
}

```

Anyone with experience here?