/ app.go
/ Register the AppModule for the Interchain Accounts module and the authentication module
/ Note: No `icaauth` exists, this must be substituted with an actual Interchain Accounts authentication module
ModuleBasics = module.NewBasicManager(
...
ica.AppModuleBasic{
},
icaauth.AppModuleBasic{
},
...
)
...
/ Add module account permissions for the Interchain Accounts module
/ Only necessary for host chain functionality
/ Each Interchain Account created on the host chain is derived from the module account created
maccPerms = map[string][]string{
...
icatypes.ModuleName: nil,
}
...
/ Add Interchain Accounts Keepers for each submodule used and the authentication module
/ If a submodule is being statically disabled, the associated Keeper does not need to be added.
type App struct {
...
ICAControllerKeeper icacontrollerkeeper.Keeper
ICAHostKeeper icahostkeeper.Keeper
ICAAuthKeeper icaauthkeeper.Keeper
...
}
...
/ Create store keys for each submodule Keeper and the authentication module
keys := sdk.NewKVStoreKeys(
...
icacontrollertypes.StoreKey,
icahosttypes.StoreKey,
icaauthtypes.StoreKey,
...
)
...
/ Create the scoped keepers for each submodule keeper and authentication keeper
scopedICAControllerKeeper := app.CapabilityKeeper.ScopeToModule(icacontrollertypes.SubModuleName)
scopedICAHostKeeper := app.CapabilityKeeper.ScopeToModule(icahosttypes.SubModuleName)
...
/ Create the Keeper for each submodule
app.ICAControllerKeeper = icacontrollerkeeper.NewKeeper(
appCodec, keys[icacontrollertypes.StoreKey], app.GetSubspace(icacontrollertypes.SubModuleName),
app.IBCKeeper.ChannelKeeper, / may be replaced with middleware such as ics29 fee
app.IBCKeeper.ChannelKeeper, &app.IBCKeeper.PortKeeper,
scopedICAControllerKeeper, app.MsgServiceRouter(),
)
app.ICAHostKeeper = icahostkeeper.NewKeeper(
appCodec, keys[icahosttypes.StoreKey], app.GetSubspace(icahosttypes.SubModuleName),
app.IBCKeeper.ChannelKeeper, / may be replaced with middleware such as ics29 fee
app.IBCKeeper.ChannelKeeper, &app.IBCKeeper.PortKeeper,
app.AccountKeeper, scopedICAHostKeeper, app.MsgServiceRouter(),
)
/ Create Interchain Accounts AppModule
icaModule := ica.NewAppModule(&app.ICAControllerKeeper, &app.ICAHostKeeper)
/ Create your Interchain Accounts authentication module
app.ICAAuthKeeper = icaauthkeeper.NewKeeper(appCodec, keys[icaauthtypes.StoreKey], app.ICAControllerKeeper)
/ ICA auth AppModule
icaAuthModule := icaauth.NewAppModule(appCodec, app.ICAAuthKeeper)
/ ICA auth IBC Module
icaAuthIBCModule := icaauth.NewIBCModule(app.ICAAuthKeeper)
/ Create controller IBC application stack and host IBC module as desired
icaControllerStack := icacontroller.NewIBCMiddleware(icaAuthIBCModule, app.ICAControllerKeeper)
icaHostIBCModule := icahost.NewIBCModule(app.ICAHostKeeper)
/ Register host and authentication routes
ibcRouter.
AddRoute(icacontrollertypes.SubModuleName, icaControllerStack).
AddRoute(icahosttypes.SubModuleName, icaHostIBCModule).
AddRoute(icaauthtypes.ModuleName, icaControllerStack) / Note, the authentication module is routed to the top level of the middleware stack
...
/ Register Interchain Accounts and authentication module AppModule's
app.moduleManager = module.NewManager(
...
icaModule,
icaAuthModule,
)
...
/ Add fee middleware to begin blocker logic
app.moduleManager.SetOrderBeginBlockers(
...
icatypes.ModuleName,
...
)
/ Add fee middleware to end blocker logic
app.moduleManager.SetOrderEndBlockers(
...
icatypes.ModuleName,
...
)
/ Add Interchain Accounts module InitGenesis logic
app.moduleManager.SetOrderInitGenesis(
...
icatypes.ModuleName,
...
)
/ initParamsKeeper init params keeper and its subspaces
func initParamsKeeper(appCodec codec.BinaryCodec, legacyAmino *codec.LegacyAmino, key, tkey sdk.StoreKey)
paramskeeper.Keeper {
...
paramsKeeper.Subspace(icahosttypes.SubModuleName)
paramsKeeper.Subspace(icacontrollertypes.SubModuleName)
...
