diff options
Diffstat (limited to 'rpc/api/utils.go')
| -rw-r--r-- | rpc/api/utils.go | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/rpc/api/utils.go b/rpc/api/utils.go index 76f00c251..a62058140 100644 --- a/rpc/api/utils.go +++ b/rpc/api/utils.go @@ -8,6 +8,7 @@ import ( "github.com/ethereum/go-ethereum/eth" "github.com/ethereum/go-ethereum/rpc/codec" "github.com/ethereum/go-ethereum/xeth" + "github.com/ethereum/go-ethereum/rpc/shared" ) const ( @@ -34,3 +35,43 @@ func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth. return apis, nil } + +// combines multiple API's +type mergedApi struct { + apis map[string]EthereumApi +} + +// create new merged api instance +func newMergedApi(apis ...EthereumApi) *mergedApi { + mergedApi := new(mergedApi) + mergedApi.apis = make(map[string]EthereumApi) + + for _, api := range apis { + for _, method := range api.Methods() { + mergedApi.apis[method] = api + } + } + return mergedApi +} + +// Supported RPC methods +func (self *mergedApi) Methods() []string { + all := make([]string, len(self.apis)) + for method, _ := range self.apis { + all = append(all, method) + } + return all +} + +// Call the correct API's Execute method for the given request +func (self *mergedApi) Execute(req *shared.Request) (interface{}, error) { + if api, found := self.apis[req.Method]; found { + return api.Execute(req) + } + return nil, shared.NewNotImplementedError(req.Method) +} + +// Merge multiple API's to a single API instance +func Merge(apis ...EthereumApi) EthereumApi { + return newMergedApi(apis...) +} |