curl --location --request POST 'https://echodata.epa.gov/echo/cwa_rest_services.metadata'{
"Results": {
"Message": "Success",
"ResultColumns": [
{
"ColumnID": "string",
"ColumnName": "string",
"DataLength": "10",
"DataType": "NUMBER",
"Description": "string",
"ObjectName": "CaseName"
}
]
}
}