How to verify token holder eligibility in the campaign

When you create a campaign on a platform like TaskOn, you often need to set the eligibility requirements for the campaign, such as users needing to own an APE token.

Step 1: Get specified ERC20 balance by address

Here you'll need three parameters: chain, token_address and wallet_address.

Once you have obtained all parameters, you can copy the following code:

curl --request GET \
     --url 'https://api.footprint.network/api/v3/address/getWalletERC20TokenBalance?chain=Ethereum&token_address=0x4d224452801aced8b2f0aebe155379bb5d594381&wallet_address=0x46efbaedc92067e6d60e84ed6395099723252496' \
     --header 'API-KEY: your-api-key' \
     --header 'accept: application/json'

Step 2: Run the script

In your terminal, you should see the following JSON response:

{
  "message": "success",
  "code": 0,
  "data": [
    {
      "chain": "Ethereum",
      "token_address": "0x4d224452801aced8b2f0aebe155379bb5d594381",
      "wallet_address": "0x46efbaedc92067e6d60e84ed6395099723252496",
      "amount": 12986,
      "token_symbol": "APE",
      "value": 27797.275081634507
    }
  ]
}

Step 3: Deploy your validation API

After successfully testing the previous two steps, you can now embed it into your API server and deploy a public API to start using it.

API Reference

If you want to know more details on the endpoint and optional parameters, check out:

getWalletERC20TokenBalance