53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
package rest
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import (
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"encoding/base64"
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"io/ioutil"
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"net/http"
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"github.com/cosmos/cosmos-sdk/client/tx"
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"github.com/cosmos/cosmos-sdk/client"
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"github.com/cosmos/cosmos-sdk/types/rest"
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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)
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// EncodeResp defines a tx encoding response.
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type EncodeResp struct {
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Tx string `json:"tx" yaml:"tx"`
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}
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// EncodeTxRequestHandlerFn returns the encode tx REST handler. In particular,
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// it takes a json-formatted transaction, encodes it to the Amino wire protocol,
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// and responds with base64-encoded bytes.
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func EncodeTxRequestHandlerFn(clientCtx client.Context) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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var req types.StdTx
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body, err := ioutil.ReadAll(r.Body)
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if rest.CheckBadRequestError(w, err) {
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return
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}
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// NOTE: amino is used intentionally here, don't migrate it
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err = clientCtx.LegacyAmino.UnmarshalJSON(body, &req)
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if rest.CheckBadRequestError(w, err) {
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return
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}
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// re-encode it in the chain's native binary format
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txBytes, err := tx.ConvertAndEncodeStdTx(clientCtx.TxConfig, req)
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if rest.CheckInternalServerError(w, err) {
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return
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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 := EncodeResp{Tx: txBytesBase64}
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// NOTE: amino is set intentionally here, don't migrate it
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rest.PostProcessResponseBare(w, clientCtx, response)
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}
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}
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