59 lines
1.4 KiB
Go
59 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/context"
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"github.com/cosmos/cosmos-sdk/types/rest"
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authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
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)
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type (
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// DecodeReq defines a tx decoding request.
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DecodeReq struct {
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Tx string `json:"tx"`
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}
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// DecodeResp defines a tx decoding response.
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DecodeResp authtypes.StdTx
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)
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// DecodeTxRequestHandlerFn returns the decode tx REST handler. In particular,
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// it takes base64-decoded bytes, decodes it from the Amino wire protocol,
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// and responds with a json-formatted transaction.
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func DecodeTxRequestHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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var req DecodeReq
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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err = cliCtx.Codec.UnmarshalJSON(body, &req)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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txBytes, err := base64.StdEncoding.DecodeString(req.Tx)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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var stdTx authtypes.StdTx
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err = cliCtx.Codec.UnmarshalBinaryLengthPrefixed(txBytes, &stdTx)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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response := DecodeResp(stdTx)
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rest.PostProcessResponse(w, cliCtx, response)
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}
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}
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