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Merge pull request #662 from cosmos/matt/ibc-rest
REST IBC transfer endpoint
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Original file line number | Diff line number | Diff line change |
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package rest | ||
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import ( | ||
"github.com/gorilla/mux" | ||
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keys "github.com/tendermint/go-crypto/keys" | ||
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"github.com/cosmos/cosmos-sdk/wire" | ||
) | ||
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// RegisterRoutes - Central function to define routes that get registered by the main application | ||
func RegisterRoutes(r *mux.Router, cdc *wire.Codec, kb keys.Keybase) { | ||
r.HandleFunc("/ibc/{destchain}/{address}/send", TransferRequestHandler(cdc, kb)).Methods("POST") | ||
} |
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Original file line number | Diff line number | Diff line change |
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package rest | ||
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import ( | ||
"encoding/hex" | ||
"encoding/json" | ||
"io/ioutil" | ||
"net/http" | ||
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"github.com/gorilla/mux" | ||
"github.com/spf13/viper" | ||
"github.com/tendermint/go-crypto/keys" | ||
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"github.com/cosmos/cosmos-sdk/client" | ||
"github.com/cosmos/cosmos-sdk/client/builder" | ||
sdk "github.com/cosmos/cosmos-sdk/types" | ||
"github.com/cosmos/cosmos-sdk/wire" | ||
"github.com/cosmos/cosmos-sdk/x/bank/commands" | ||
"github.com/cosmos/cosmos-sdk/x/ibc" | ||
) | ||
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type transferBody struct { | ||
// Fees sdk.Coin `json="fees"` | ||
Amount sdk.Coins `json:"amount"` | ||
LocalAccountName string `json:"name"` | ||
Password string `json:"password"` | ||
SrcChainID string `json:"src_chain_id"` | ||
Sequence int64 `json:"sequence"` | ||
} | ||
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// TransferRequestHandler - http request handler to transfer coins to a address | ||
// on a different chain via IBC | ||
func TransferRequestHandler(cdc *wire.Codec, kb keys.Keybase) func(http.ResponseWriter, *http.Request) { | ||
c := commands.Commander{cdc} | ||
return func(w http.ResponseWriter, r *http.Request) { | ||
// collect data | ||
vars := mux.Vars(r) | ||
destChainID := vars["destchain"] | ||
address := vars["address"] | ||
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var m transferBody | ||
body, err := ioutil.ReadAll(r.Body) | ||
if err != nil { | ||
w.WriteHeader(http.StatusBadRequest) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
err = json.Unmarshal(body, &m) | ||
if err != nil { | ||
w.WriteHeader(http.StatusBadRequest) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
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info, err := kb.Get(m.LocalAccountName) | ||
if err != nil { | ||
w.WriteHeader(http.StatusUnauthorized) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
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bz, err := hex.DecodeString(address) | ||
if err != nil { | ||
w.WriteHeader(http.StatusBadRequest) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
to := sdk.Address(bz) | ||
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// build message | ||
packet := ibc.NewIBCPacket(info.PubKey.Address(), to, m.Amount, m.SrcChainID, destChainID) | ||
msg := ibc.IBCTransferMsg{packet} | ||
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// sign | ||
// XXX: OMG | ||
viper.Set(client.FlagSequence, m.Sequence) | ||
txBytes, err := builder.SignAndBuild(m.LocalAccountName, m.Password, msg, c.Cdc) | ||
if err != nil { | ||
w.WriteHeader(http.StatusUnauthorized) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
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// send | ||
res, err := builder.BroadcastTx(txBytes) | ||
if err != nil { | ||
w.WriteHeader(http.StatusInternalServerError) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
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output, err := json.MarshalIndent(res, "", " ") | ||
if err != nil { | ||
w.WriteHeader(http.StatusInternalServerError) | ||
w.Write([]byte(err.Error())) | ||
return | ||
} | ||
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w.Write(output) | ||
} | ||
} |