Get Collection

curl -i '<QUICKNODE_URL>' -X POST -H 'content-type: application/json' --data-binary '{
    "jsonrpc": "2.0",
    "method": "cm_getCollection",
    "params": [
      "<collectionId>"
    ]
  }'

{
    "id": "<collectionId>",
    "metadata": {
        "name": "my collection name",
        "description": "my collection description",
        "imageUrl": "https://www.crossmint.com/api/2022-06-09/media/defaultCollectionImage"
    },
    "onChain": {
        "chain": "solana",
        "type": "metaplex-certified-collection"
    }
}