# Initialisation The `Router` struct is only initialised in one place in the application, in `wallet/api.go`. The consumption complexity is very low: ```go func NewAPI(s *Service) *API { router := NewRouter(s) return &API{s, s.reader, router} } type API struct { s *Service reader *Reader router *Router } ``` # Method and field calls The `API.router` field is only called in two places: ## `GetSuggestedRoutes()` This function is a straight through wrapper of `Router.suggestedRoutes()`: ```go func (api *API) GetSuggestedRoutes( ctx context.Context, sendType SendType, addrFrom common.Address, addrTo common.Address, amountIn *hexutil.Big, tokenID string, disabledFromChainIDs, disabledToChaindIDs, preferedChainIDs []uint64, gasFeeMode GasFeeMode, fromLockedAmount map[uint64]*hexutil.Big, ) (*SuggestedRoutes, error) { log.Debug("call to GetSuggestedRoutes") return api.router.suggestedRoutes(ctx, sendType, addrFrom, addrTo, amountIn.ToInt(), tokenID, disabledFromChainIDs, disabledToChaindIDs, preferedChainIDs, gasFeeMode, fromLockedAmount) } ``` ## `CreateMultiTransaction()` This function simply makes a read call to `Router.bridges` ```go func (api *API) CreateMultiTransaction(ctx context.Context, multiTransactionCommand *transfer.MultiTransactionCommand, data []*bridge.TransactionBridge, password string) (*transfer.MultiTransactionCommandResult, error) { log.Debug("[WalletAPI:: CreateMultiTransaction] create multi transaction") return api.s.transactionManager.CreateMultiTransactionFromCommand(ctx, multiTransactionCommand, data, api.router.bridges, password) } ```