cosmos-sdk/x/gov/client/cli/query.go

package cli

import (
	"encoding/json"
	"fmt"
	"strconv"

	"github.com/spf13/cobra"

	"cosmossdk.io/core/address"

	"github.com/cosmos/cosmos-sdk/client"
	"github.com/cosmos/cosmos-sdk/client/flags"
	"github.com/cosmos/cosmos-sdk/version"
	gcutils "github.com/cosmos/cosmos-sdk/x/gov/client/utils"
	"github.com/cosmos/cosmos-sdk/x/gov/types"
)

// GetCustomQueryCmd returns the cli query commands for this module
// These commands do not rely on gRPC and cannot be autogenerated
func GetCustomQueryCmd(ac address.Codec) *cobra.Command {
	// Group gov queries under a subcommand
	govQueryCmd := &cobra.Command{
		Use:                        types.ModuleName,
		Short:                      "Querying commands for the gov module",
		DisableFlagParsing:         true,
		SuggestionsMinimumDistance: 2,
		RunE:                       client.ValidateCmd,
	}

	govQueryCmd.AddCommand(
		GetCmdQueryProposer(),
	)

	return govQueryCmd
}

// GetCmdQueryProposer implements the query proposer command.
func GetCmdQueryProposer() *cobra.Command {
	cmd := &cobra.Command{
		Use:     "proposer [proposal-id]",
		Args:    cobra.ExactArgs(1),
		Short:   "Query the proposer of a governance proposal",
		Long:    "Query which address proposed a proposal with a given ID",
		Example: fmt.Sprintf("%s query gov proposer 1", version.AppName),
		RunE: func(cmd *cobra.Command, args []string) error {
			clientCtx, err := client.GetClientQueryContext(cmd)
			if err != nil {
				return err
			}

			// validate that the proposalID is a uint
			proposalID, err := strconv.ParseUint(args[0], 10, 64)
			if err != nil {
				return fmt.Errorf("proposal-id %s is not a valid uint", args[0])
			}

			prop, err := gcutils.QueryProposerByTxQuery(clientCtx, proposalID)
			if err != nil {
				return err
			}

			output, err := json.Marshal(prop)
			if err != nil {
				return err
			}
			return clientCtx.PrintRaw(output)
		},
	}

	flags.AddQueryFlagsToCmd(cmd)

	return cmd
}