How to check if a token is gas sponsored on Viction

This guide will show you how to check if a token is gas sponsored on Viction

Step 1: Check if the Token is in the Sponsor List

• Objective: Verify if the token is eligible for gas sponsorship.

• Function: Use the tokens function from the Issuer Contract.

Steps:

1. Call the tokens function with the token address or identifier.

2. If the token exists in the sponsor list, proceed to Step 2. Otherwise, it is not sponsored.

Step 2: Check Token Capacity

• Objective: Determine if the token has remaining gas sponsorship capacity.

• Function: Use the getTokenCapacity function.

Steps:

1. Call getTokenCapacity with the token address or identifier.

2. Interpret the response:

   • If > 0: Token can sponsor gas.

   • If = 0: Token sponsorship is exhausted. Transactions will be failed.

Key Functions:

Simple flow:

1. Call tokens to check sponsorship eligibility.

2. If eligible, call getTokenCapacity to validate capacity:

   • 0: Sponsored.

   • = 0: Not sponsored.

3. Cache results for faster future checks.