55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
package cli
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import (
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"encoding/base64"
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"github.com/spf13/cobra"
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"github.com/cosmos/cosmos-sdk/client/context"
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"github.com/cosmos/cosmos-sdk/client/flags"
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"github.com/cosmos/cosmos-sdk/codec"
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"github.com/cosmos/cosmos-sdk/x/auth/client"
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)
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// txEncodeRespStr implements a simple Stringer wrapper for a encoded tx.
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type txEncodeRespStr string
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func (txr txEncodeRespStr) String() string {
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return string(txr)
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}
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// GetEncodeCommand returns the encode command to take a JSONified transaction and turn it into
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// Amino-serialized bytes
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func GetEncodeCommand(cdc *codec.Codec) *cobra.Command {
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cmd := &cobra.Command{
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Use: "encode [file]",
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Short: "Encode transactions generated offline",
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Long: `Encode transactions created with the --generate-only flag and signed with the sign command.
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Read a transaction from <file>, serialize it to the Amino wire protocol, and output it as base64.
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If you supply a dash (-) argument in place of an input filename, the command reads from standard input.`,
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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cliCtx := context.NewCLIContext().WithCodec(cdc)
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stdTx, err := client.ReadStdTxFromFile(cliCtx.Codec, args[0])
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if err != nil {
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return
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}
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// re-encode it via the Amino wire protocol
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txBytes, err := cliCtx.Codec.MarshalBinaryLengthPrefixed(stdTx)
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if err != nil {
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return err
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}
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// base64 encode the encoded tx bytes
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txBytesBase64 := base64.StdEncoding.EncodeToString(txBytes)
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response := txEncodeRespStr(txBytesBase64)
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return cliCtx.PrintOutput(response)
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},
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}
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return flags.PostCommands(cmd)[0]
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}
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