51 lines
1.3 KiB
Go
51 lines
1.3 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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"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(cliCtx context.CLIContext) 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 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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// re-encode it via the Amino wire protocol
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txBytes, err := cliCtx.Codec.MarshalBinaryLengthPrefixed(req)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
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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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rest.PostProcessResponse(w, cliCtx, response)
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}
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}
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