const options = {method: 'GET'};

fetch('https://swap.ggp.gg/api/{blockchain}/orders/byMaker/{maker}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": [
    {
      "maker": "<string>",
      "makerSrcOrToken": "<string>",
      "makerToken": "<string>",
      "makerTraits": "<string>",
      "makingAmount": "<string>",
      "orderHash": "<string>",
      "parsedMakerTraits": {
        "allowMultipleFills": true,
        "allowPartialFills": true,
        "allowedSenderSuffix": "<string>",
        "expiration": 1,
        "hasExtension": true,
        "needCheckEpochManager": true,
        "needPostInteractionCall": true,
        "needPreInteractionCall": true,
        "nonceOrEpoch": 1,
        "series": 1,
        "unwrapWeth": true,
        "usePermit2": true
      },
      "salt": "<string>",
      "signature": "<string>",
      "takerSrcOrToken": "<string>",
      "takerToken": "<string>",
      "takingAmount": "<string>",
      "extension": "<string>",
      "recipient": "<string>"
    }
  ]
}