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Version: Mainnet

Minimum Gas Prices

This section covers the management of the sequencer gas prices for your RollApp. Gas along with the calculated fees sets the amount of tokens a Sequencer charges a user to include their transaction in a block.

User fees​

  • Gas is a unit that is used to track the consumption of resources during execution.
  • Gas-Price is the amount of tokens that a user is willing to pay per unit of gas. Gas price is typically specified in the base denomination.
info

DYM-native RollApps use the bridge version of DYM as the base denom: ibc/FECACB927EB3102CCCB240FFB3B6FCCEEB8D944C6FEA8DFF079650FEFF59781D)

  • Fees is the total amount that a user pays to submit a transaction. It is calculated as the product of the gas used by the transaction and the gas price the user is willing to pay.

Fee calculation formula:​

Fees=Gas×Gas-Price\text{Fees} = \text{Gas} \times \text{Gas-Price}

Updating Fees​

1. Update the node minimum gas price​

Note

It's important to coordinate gas prices changes with any full nodes that are running the RollApp.

roller config set minimum-gas-price 10000000ibc/FECACB927EB3102CCCB240FFB3B6FCCEEB8D944C6FEA8DFF079650FEFF59781D

2. Restart the node​

3. Update the sequencer's on-chain metadata​

Operators must then update the sequencer's onchain metadata so users can correctly interact with the Rollapp using the portal.

  1. Export the sequencer's metadata JSON:

    roller rollapp sequencer metadata export

  2. Update the JSON file for gas_price and if necessary also for fee_denom.display, fee_denom.base , fee_denom.exponent like in the example below:

    gas-prices

  3. Update the Dymension L1 with the updated metadata JSON:

    roller rollapp sequencer metadata update