CSV by Default in content negotiation

[spillz-dxb]

Describe the bug The Http server api , by default serves data in csv format , if the accept headers arent used . Is there a way to change it to json or zinc by default. The grafana data source fails because of this as there is no way to add http headers in the data source.

To Reproduce Steps to reproduce the behavior: Open browser and use get method for http://localhost:3000/haystack/ returns a CSV file instead of in browser zinc or json for other implementations .

Expected behavior By default a zinc or json format is expected , or means to change the default to different formats in shaystack

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Desktop (please complete the following information):

• OS: Docker
• Browser :Edge

Additional context Add any other context about the problem here.