Error on stagedUploadsCreate mutation

[kyle_liu]

You missed a parameter ‘httpMethod’: ‘POST’,

{
  "input": [
    {
        "filename": "product_template.jsonl",
        "mimeType": "text/jsonl",
        "httpMethod": "POST",
        "resource": "BULK_MUTATION_VARIABLES"
      }
  ]
}

When I deleted this parameter, I also received the same error as you