48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
package baseapp
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import (
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// Router provides handlers for each transaction type.
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type Router interface {
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AddRoute(r string, h sdk.Handler) (rtr Router)
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Route(path string) (h sdk.Handler)
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}
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type router struct {
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routes map[string]sdk.Handler
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}
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// NewRouter returns a reference to a new router.
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//
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// TODO: Either make the function private or make return type (router) public.
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func NewRouter() *router { // nolint: golint
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return &router{
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routes: make(map[string]sdk.Handler),
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}
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}
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// AddRoute adds a route path to the router with a given handler. The route must
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// be alphanumeric.
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func (rtr *router) AddRoute(path string, h sdk.Handler) Router {
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if !isAlphaNumeric(path) {
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panic("route expressions can only contain alphanumeric characters")
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}
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if rtr.routes[path] != nil {
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panic(fmt.Sprintf("route %s has already been initialized", path))
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}
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rtr.routes[path] = h
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return rtr
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}
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// Route returns a handler for a given route path.
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//
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// TODO: Handle expressive matches.
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func (rtr *router) Route(path string) sdk.Handler {
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return rtr.routes[path]
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}
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