cosmos-sdk/client/tx/search.go

116 lines
2.6 KiB
Go

package tx
import (
"errors"
"fmt"
"net/http"
"strings"
"github.com/spf13/cobra"
"github.com/spf13/viper"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/context"
"github.com/cosmos/cosmos-sdk/wire"
)
const (
flagTags = "tag"
flagAny = "any"
)
// default client command to search through tagged transactions
func SearchTxCmd(cdc *wire.Codec) *cobra.Command {
cmd := &cobra.Command{
Use: "txs",
Short: "Search for all transactions that match the given tags",
RunE: func(cmd *cobra.Command, args []string) error {
tags := viper.GetStringSlice(flagTags)
output, err := searchTx(cdc, tags)
if err != nil {
return err
}
fmt.Println(string(output))
return nil
},
}
cmd.Flags().StringP(client.FlagNode, "n", "tcp://localhost:46657", "Node to connect to")
// TODO: change this to false once proofs built in
cmd.Flags().Bool(client.FlagTrustNode, true, "Don't verify proofs for responses")
cmd.Flags().StringSlice(flagTags, nil, "Tags that must match (may provide multiple)")
cmd.Flags().Bool(flagAny, false, "Return transactions that match ANY tag, rather than ALL")
return cmd
}
func searchTx(cdc *wire.Codec, tags []string) ([]byte, error) {
if len(tags) == 0 {
return nil, errors.New("Must declare at least one tag to search")
}
// XXX: implement ANY
query := strings.Join(tags, " AND ")
// get the node
node, err := context.NewCoreContextFromViper().GetNode()
if err != nil {
return nil, err
}
prove := !viper.GetBool(client.FlagTrustNode)
res, err := node.TxSearch(query, prove)
if err != nil {
return nil, err
}
info, err := formatTxResults(cdc, res)
if err != nil {
return nil, err
}
output, err := cdc.MarshalJSON(info)
if err != nil {
return nil, err
}
return output, nil
}
func formatTxResults(cdc *wire.Codec, res []*ctypes.ResultTx) ([]txInfo, error) {
var err error
out := make([]txInfo, len(res))
for i := range res {
out[i], err = formatTxResult(cdc, res[i])
if err != nil {
return nil, err
}
}
return out, nil
}
/////////////////////////////////////////
// REST
// Search Tx REST Handler
func SearchTxRequestHandler(cdc *wire.Codec) func(http.ResponseWriter, *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
tag := r.FormValue("tag")
if tag == "" {
w.WriteHeader(400)
w.Write([]byte("You need to provide a tag to search for."))
return
}
tags := []string{tag}
output, err := searchTx(cdc, tags)
if err != nil {
w.WriteHeader(500)
w.Write([]byte(err.Error()))
return
}
w.Write(output)
}
}