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main.go
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main.go
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package main
import (
"encoding/json"
"fmt"
"log"
"net/http"
eos "github.com/eoscanada/eos-go"
"github.com/eoscanada/eos-go/ecc"
)
// A drop-in Wallet server, mimics `keosd` using a KeyBag and the Go signature machinery.
func main() {
keyBag := eos.NewKeyBag()
for _, key := range []string{
"5J6rkLgUEgMThg6GH2iNva5RvRqmGabbhMFwvL6TvdXCp2cU7LR",
"5JgFcyKbovph99NNeUptnRRbyqGLmx9zB5sMdgQjPfzpWXotxSs",
"5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3",
"5K7Ffo8LXHhbsxV48w3sZzo8UnaKX3z5iD5mvac1AfDhHXKs3ao",
"5Jrwky4GxChTSqG29Mj9B1HGqJXx8T8WxkPJULmDaBDsguhiF8m", // EOS8BSnVNRPfuTFReBjP71TTbQp3gDSSMt7wf1iMGJFMwdtN7aupE
"5Jv2xEfJ4UVbNTBNjMxdWZAJcaDweP4bgwRd554NpWG3VynxW6L", // EOS5Dg9cu3yn5cMpWkrZnhmYk2xDBWmu62Sj2dNrWn6Ui82eoYJQhe
"5KE5hGNCAs1YvV74Ho14y1rV1DrnqZpTwLugS8QvYbKbrGAvVA1", // EOS71W8hvF43Eq6GQBRhuc5mvWKtknxzmb9NzNwPGpcEm2xAZaG8c
} {
if err := keyBag.Add(key); err != nil {
log.Fatalln("Couldn't load private key:", err)
}
}
http.HandleFunc("/v1/wallet/get_public_keys", func(w http.ResponseWriter, r *http.Request) {
fmt.Println("Handling get_public_keys")
var out []string
for _, key := range keyBag.Keys {
out = append(out, key.PublicKey().String())
}
json.NewEncoder(w).Encode(out)
})
http.HandleFunc("/v1/wallet/sign_transaction", func(w http.ResponseWriter, r *http.Request) {
fmt.Println("Handling sign_transaction")
var inputs []json.RawMessage
if err := json.NewDecoder(r.Body).Decode(&inputs); err != nil {
fmt.Println("sign_transaction: error:", err)
http.Error(w, "couldn't decode input", 500)
return
}
var tx *eos.SignedTransaction
var requiredKeys []ecc.PublicKey
var chainID eos.HexBytes
if len(inputs) != 3 {
http.Error(w, "invalid length of message, should be 3 parameters", 500)
return
}
err := json.Unmarshal(inputs[0], &tx)
if err != nil {
http.Error(w, "decoding transaction", 500)
return
}
err = json.Unmarshal(inputs[1], &requiredKeys)
if err != nil {
http.Error(w, "decoding required keys", 500)
return
}
err = json.Unmarshal(inputs[2], &chainID)
if err != nil {
http.Error(w, "decoding chain id", 500)
return
}
signed, err := keyBag.Sign(tx, chainID, requiredKeys...)
if err != nil {
http.Error(w, fmt.Sprintf("error signing: %s", err), 500)
return
}
w.WriteHeader(201)
_ = json.NewEncoder(w).Encode(signed)
})
http.HandleFunc("/v1/wallet/import_key", func(w http.ResponseWriter, r *http.Request) {
fmt.Println("Handling import_key")
var inputs []string
_ = json.NewDecoder(r.Body).Decode(&inputs)
// We're ignoring inputs[0] which is the name of the wallet ("default" by default)
keyBag.Add(inputs[1])
w.WriteHeader(201)
w.Write([]byte("{}"))
})
fmt.Println("Listening for wallet operations on port 5555")
if err := http.ListenAndServe("127.0.0.1:5555", nil); err != nil {
log.Println("Litsening failed:", err)
}
}