JokeAPI-v2/data/fileFormats.json

{
    "json": {
        "mimeType": "application/json"
    },
    "xml": {
        "mimeType": "application/xml"
    },
    "yaml": {
        "mimeType": "application/x-yaml"
    },
    "txt": {
        "mimeType": "text/plain"
    }
}