Integrating with Interchain Accounts
It is highly recommended to read interchain-accounts introductions before moving on.
With the release of Interchain Accounts, which enables cross-chain account management built upon IBC, a solution to build rTokens via Interchain Accounts is implemented on StaFiHub and brings more security, decentralization and ease of integration.
The target chain is assumed to have integrated Interchain Accounts(ICA) module.
Like the way to integrate with multisig accounts, no development is required at all, the integration process is also a three-step process and the main step is to configure the following parameters, of which most are the same except pool accounts, the other two steps are the same and we won't belabor it here.
Flags
Description
Example
denom
The denomination used by the target chain
uatom
decimals
Decimal points to covert minimal denomination to user-facing denomination
6
bech32PrefixAccAddr
Prefix of account address
cosmos
bech32PrefixValAddr
Prefix of validator address
cosmosvaloper
stafiRelayers
Relay accounts of StaFiHub. Each rToken realy service needs to import an account to initiate transactions with the StaFiHub. 7 accounts recommended on mainnet
stafi17yl0s0zh7u87uhluzn2egg5ru2hy3jqxfspdlp stafi12a0n3294pncp24c93d0as3g3t5zjhcnrnugsd7 stafi1tjg6cw5lklvz7nwd0ck9veua9ldm4lxnrr99y4
stafiRelayerThreshold
Threshold of the relayers. 4 recommended on mainnet
2
gasPrice
Gas price. Ensure that each rToken realy service can successfully initiate a transaction to the target chain
0.025uatom
bondingDuration
Unbonding time of the target chain
21days
leastBond
Minimum staking amount to mint rToken(Optional). Usually decided by StaFiHub
0.1ATOM
ICA-pool
An ICA-pool contains two ICA-accounts, one of them is used as the pool account, the other is a secondary account used to collect staking rewards
cosmos1lyqrtft9x286gfsf30rf8vtvmc3jgd0mevd8p3 cosmos1u5dfrwye0vgtf706wc0h55vl06v0mc23fsu225
As the target chain already supports the ICA module, StaFiHub can register ICA accounts on the target chain through its module Ledger and use them as ICA pool accounts.
During the registration process, the module Ledger plays the role as the Authentication Module, while StaFiHub is the Controller Chain, and the target chain is the Host Chain.

FAQ

  1. 1.
    Integrating with Interchain Accounts or Multisig accounts, Can the two integration methods coexist for an rToken?
    Yes. Here are the details:
    • The two types of pools exist independently, and all of them can receive origin Token.
    • The exchange rate is calculated after counting the total number of all pool staked.
    • Both methods rely on the same set of code as their relay service.
  2. 2.
    Why does it need to run rToken relay service for integrating with Interchain Accounts?
    As Interchain Query is not released at the moment, the Host chain(StaFiHub) can not directly query balance or total staked amount of the Interchain Accounts and need rToken relay service to collect these information to enable StaFiHub to build Interchain transactions. Once Interchain Query is released, integrating with Interchain Accounts will be upgraded to Phase 2 and this issue will be addressed. At that moment, rToken will be completely decentralized.
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