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POST
https://0xcord.com
/
api
/
vrfv2
/
presets
Lotto Preset
curl --request POST \
  --url https://0xcord.com/api/vrfv2/presets \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "network": "<string>",
  "preset": "<string>",
  "numberOfWinners": "<string>",
  "list": [
    {}
  ]
}
'
{
  "data": {
    "success": true,
    "vrfv2Hash": "<string>",
    "vrfv2EventHash": "<string>",
    "requestId": "<string>",
    "result": "<string>",
    "parsedResult": "<string>",
    "err": "<string>",
    "url": "<string>"
  }
}

​
Params

​
network
string
default:"polygon_mumbai"
required
The blockchain network to retrieve random numbers from. Available options are polygon_mumbai,fuji and sepolia.
​
preset
string
default:"lotto"
required
The preset to be used.
​
numberOfWinners
string
default:"1"
required
The amount of winners you want to get.
​
list
array
required
The list of participants or options in string format. eg: [“Adam”, “Bradley”, “Charlie”, “David”, “Edward”, “Frank”]

​
Response

​
data
object
​
success
boolean
Indicates whether the request was successful
​
vrfv2Hash
string
The hash of the VRF proof generated by Chainlink
​
vrfv2EventHash
string
The URL to the VRF proof event on the blockchain explorer
​
requestId
string
The unique request ID assigned by Chainlink
​
result
string
The random number generated by Chainlink
​
parsedResult
string
The parsed random number generated by Chainlink
​
err
string
The error message, if any
​
url
string
The URL to the transaction details on the blockchain explorer

0xCord's preset Tutorial

Learn how to integrate this preset with 0xCord