Creating a Goerli listing returns an error about matic

[davidlee1435]

hey folks, a couple things about the testnets API:

1. on the v2 create listing endpoint documentation (https://docs.opensea.io/v2.0/reference/create-an-order-testnets), the key name for the input is wrong (it should be parameters, not order_parameters)

2. i am trying to create a listing on goerli via a smart contract wallet that implements EIP-1271. before i call https://testnets-api.opensea.io/v2/orders/goerli/seaport/listings, I ensure that the parameters and signature that i'm sending are valid by calling seaport.validate(...).callStatic(). however, the error returned by the server is:

{"errors":["Chain with identifier matic does not exist in the db"]}

i'm not really sure where to start debugging this, since i also ran my order parameters through seaport-order-validator (https://github.com/ProjectOpenSea/seaport-order-validator) successfully. anyone else run into a similar issue?

for reference here's an example curl request:

 curl --request POST \
     --url https://testnets-api.opensea.io/v2/orders/goerli/seaport/listings \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '
{
     "parameters": {
          "offerer": "0x812aeE6Cf4C760101E83685B763578D09ECd9254",
          "zone": "0x0000000000000000000000000000000000000000",
          "zoneHash": "0x3000000000000000000000000000000000000000000000000000000000000000",
          "startTime": "1665169020",
          "endTime": "1665169921",
          "orderType": 2,
          "counter": 0,
          "offer": [
               {
                    "itemType": 2,
                    "token": "0xf5de760f2e916647fd766b4ad9e85ff943ce3a2b",
                    "identifierOrCriteria": "1412010",
                    "startAmount": "1",
                    "endAmount": "1"
               }
          ],
          "consideration": [
               {
                    "itemType": 0,
                    "token": "0x0000000000000000000000000000000000000000",
                    "identifierOrCriteria": "0",
                    "startAmount": "195000000000000000",
                    "endAmount": "195000000000000000",
                    "recipient": "0x812aeE6Cf4C760101E83685B763578D09ECd9254"
               },
               {
                    "itemType": 0,
                    "token": "0x0000000000000000000000000000000000000000",
                    "identifierOrCriteria": "0",
                    "startAmount": "5000000000000000",
                    "endAmount": "5000000000000000",
                    "recipient": "0x0000a26b00c1f0df003000390027140000faa719"
               }
          ],
          "totalOriginalConsiderationItems": 2,
          "salt": "0x00000000bc95f51b450e9caa",
          "conduitKey": "0x0000007b02230091a7ed01230072f7006a004d60a8d4e71d599b8104250f0000"
     },
     "signature": "0x61a52433ad0c0416a6754f07fbd606e04bb0c4a5232557ab9cc00cfe22c412692099a4063ac45519aeea32c18cbe3068e6b9a779bdff61076bd4201f1facafbb1b"
}
'