package ui import ( "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/ethutil" ) func fromHex(s string) []byte { if len(s) > 1 { if s[0:2] == "0x" { s = s[2:] } return ethutil.Hex2Bytes(s) } return nil } func NewFilterFromMap(object map[string]interface{}, eth core.Backend) *core.Filter { filter := core.NewFilter(eth) if object["earliest"] != nil { val := ethutil.NewValue(object["earliest"]) filter.SetEarliestBlock(val.Int()) } if object["latest"] != nil { val := ethutil.NewValue(object["latest"]) filter.SetLatestBlock(val.Int()) } if object["address"] != nil { val := ethutil.NewValue(object["address"]) filter.SetAddress(fromHex(val.Str())) } if object["max"] != nil { val := ethutil.NewValue(object["max"]) filter.SetMax(int(val.Uint())) } if object["skip"] != nil { val := ethutil.NewValue(object["skip"]) filter.SetSkip(int(val.Uint())) } if object["topics"] != nil { filter.SetTopics(MakeTopics(object["topics"])) } return filter } // Conversion methodn func mapToAccountChange(m map[string]interface{}) (d core.AccountChange) { if str, ok := m["id"].(string); ok { d.Address = fromHex(str) } if str, ok := m["at"].(string); ok { d.StateAddress = fromHex(str) } return } // data can come in in the following formats: // ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"} func MakeTopics(v interface{}) (d [][]byte) { if str, ok := v.(string); ok { d = append(d, fromHex(str)) } else if slice, ok := v.([]string); ok { for _, item := range slice { d = append(d, fromHex(item)) } } return }