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basic_transfer.go
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basic_transfer.go
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package toolslib
import (
"bytes"
"encoding/json"
"github.com/btcsuite/btcd/btcec"
"github.com/deso-smart/deso-backend/v2/routes"
"github.com/deso-smart/deso-core/v2/lib"
"github.com/pkg/errors"
"io/ioutil"
"net/http"
)
// _generateUnsignedSendDeSo...
func _generateUnsignedSendDeSo(senderPubKey *btcec.PublicKey, recipientPubKey *btcec.PublicKey, amountNanos int64,
params *lib.DeSoParams, node string) (*routes.SendDeSoResponse, error) {
endpoint := node + routes.RoutePathSendDeSo
// Setup request
payload := &routes.SendDeSoRequest{
SenderPublicKeyBase58Check: lib.PkToString(senderPubKey.SerializeCompressed(), params),
RecipientPublicKeyOrUsername: lib.PkToString(recipientPubKey.SerializeCompressed(), params),
AmountNanos: amountNanos,
MinFeeRateNanosPerKB: 1000,
}
postBody, err := json.Marshal(payload)
if err != nil {
return nil, errors.Wrap(err, "_generateUnsignedSendDeSo() failed to marshal struct")
}
postBuffer := bytes.NewBuffer(postBody)
// Execute request
resp, err := http.Post(endpoint, "application/json", postBuffer)
if err != nil {
return nil, errors.Wrap(err, "_generateUnsignedSendDeSo() failed to execute request")
}
if resp.StatusCode != 200 {
bodyBytes, _ := ioutil.ReadAll(resp.Body)
return nil, errors.Errorf("_generateUnsignedSendDeSo(): Received non 200 response code: "+
"Status Code: %v Body: %v", resp.StatusCode, string(bodyBytes))
}
// Process response
sendDeSoResponse := routes.SendDeSoResponse{}
err = json.NewDecoder(resp.Body).Decode(&sendDeSoResponse)
if err != nil {
return nil, errors.Wrap(err, "_generateUnsignedSendDeSo(): failed decoding body")
}
err = resp.Body.Close()
if err != nil {
return nil, errors.Wrap(err, "_generateUnsignedSendDeSo(): failed closing body")
}
return &sendDeSoResponse, nil
}
// SendDeSo...
func SendDeSo(senderPubKey *btcec.PublicKey,
senderPrivKey *btcec.PrivateKey,
recipientPubKey *btcec.PublicKey, amountNanos int64, params *lib.DeSoParams, node string) error {
// Request an unsigned transaction from the node
unsignedSendDeSo, err := _generateUnsignedSendDeSo(senderPubKey, recipientPubKey, amountNanos, params, node)
if err != nil {
return errors.Wrap(err, "SendDeSo() failed to call _generateSendDeSo()")
}
txn := unsignedSendDeSo.Transaction
// Sign the transaction
signature, err := txn.Sign(senderPrivKey)
if err != nil {
return errors.Wrap(err, "SendDeSo() failed to sign transaction")
}
txn.Signature = signature
// Submit the transaction to the node
err = SubmitTransactionToNode(txn, node)
if err != nil {
return errors.Wrap(err, "SendDeSo() failed to submit transaction")
}
return nil
}