// ExampleBuildTransaction creates and signs a simple transaction using the build package.
// The build package is designed to make it easier and more intuitive to configure and sign
// a transaction.
func ExampleBuildTransaction() {
source := "SA26PHIKZM6CXDGR472SSGUQQRYXM6S437ZNHZGRM6QA4FOPLLLFRGDX"
tx := b.Transaction(
b.SourceAccount{source},
b.Sequence{1},
b.Payment(
b.Destination{"SBQHO2IMYKXAYJFCWGXC7YKLJD2EGDPSK3IUDHVJ6OOTTKLSCK6Z6POM"},
b.NativeAmount{"50.0"},
),
)
txe := tx.Sign(source)
txeB64, err := txe.Base64()
if err != nil {
panic(err)
}
fmt.Printf("tx base64: %s", txeB64)
}
// ToTransactionMutator returns go-stellar-base TransactionMutator
func (op PaymentOperationBody) ToTransactionMutator() b.TransactionMutator {
mutators := []interface{}{
b.Destination{op.Destination},
}
if op.Asset.Code != "" && op.Asset.Issuer != "" {
mutators = append(
mutators,
b.CreditAmount{op.Asset.Code, op.Asset.Issuer, op.Amount},
)
} else {
mutators = append(
mutators,
b.NativeAmount{op.Amount},
)
}
if op.Source != nil {
mutators = append(mutators, b.SourceAccount{*op.Source})
}
return b.Payment(mutators...)
}
// ToTransactionMutator returns go-stellar-base TransactionMutator
func (op PathPaymentOperationBody) ToTransactionMutator() b.TransactionMutator {
var path []b.Asset
for _, pathAsset := range op.Path {
path = append(path, pathAsset.ToBaseAsset())
}
mutators := []interface{}{
b.Destination{op.Destination},
b.PayWithPath{
Asset: op.SendAsset.ToBaseAsset(),
MaxAmount: op.SendMax,
Path: path,
},
}
if op.DestinationAsset.Code != "" && op.DestinationAsset.Issuer != "" {
mutators = append(
mutators,
b.CreditAmount{
op.DestinationAsset.Code,
op.DestinationAsset.Issuer,
op.DestinationAmount,
},
)
} else {
mutators = append(
mutators,
b.NativeAmount{op.DestinationAmount},
)
}
if op.Source != nil {
mutators = append(mutators, b.SourceAccount{*op.Source})
}
return b.Payment(mutators...)
}
func (rh *RequestHandler) Payment(w http.ResponseWriter, r *http.Request) {
source := r.PostFormValue("source")
sourceKeypair, err := keypair.Parse(source)
if err != nil {
log.WithFields(log.Fields{"source": source}).Print("Invalid source parameter")
errorBadRequest(w, errorResponseString("invalid_source", "source parameter is invalid"))
return
}
destination := r.PostFormValue("destination")
destinationObject, err := rh.AddressResolver.Resolve(destination)
if err != nil {
log.WithFields(log.Fields{"destination": destination}).Print("Cannot resolve address")
errorBadRequest(w, errorResponseString("invalid_destination", "Cannot resolve destination"))
return
}
_, err = keypair.Parse(destinationObject.AccountId)
if err != nil {
log.WithFields(log.Fields{"AccountId": destinationObject.AccountId}).Print("Invalid AccountId in destination")
errorBadRequest(w, errorResponseString("invalid_destination", "destination parameter is invalid"))
return
}
amount := r.PostFormValue("amount")
assetCode := r.PostFormValue("asset_code")
assetIssuer := r.PostFormValue("asset_issuer")
var operationBuilder interface{}
if assetCode != "" && assetIssuer != "" {
issuerKeypair, err := keypair.Parse(assetIssuer)
if err != nil {
log.WithFields(log.Fields{"asset_issuer": assetIssuer}).Print("Invalid asset_issuer parameter")
errorBadRequest(w, errorResponseString("invalid_issuer", "asset_issuer parameter is invalid"))
return
}
operationBuilder = b.Payment(
b.Destination{destinationObject.AccountId},
b.CreditAmount{assetCode, issuerKeypair.Address(), amount},
)
} else if assetCode == "" && assetIssuer == "" {
mutators := []interface{}{
b.Destination{destinationObject.AccountId},
b.NativeAmount{amount},
}
// Check if destination account exist
_, err = rh.Horizon.LoadAccount(destinationObject.AccountId)
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Error loading account")
operationBuilder = b.CreateAccount(mutators...)
} else {
operationBuilder = b.Payment(mutators...)
}
} else {
log.Print("Missing asset param.")
errorBadRequest(w, errorResponseString("asset_missing_param", "When passing asser both params: `asset_code`, `asset_issuer` are required"))
return
}
memoType := r.PostFormValue("memo_type")
memo := r.PostFormValue("memo")
if !(((memoType == "") && (memo == "")) || ((memoType != "") && (memo != ""))) {
log.Print("Missing one of memo params.")
errorBadRequest(w, errorResponseString("memo_missing_param", "When passing memo both params: `memo_type`, `memo` are required"))
return
}
if destinationObject.MemoType != nil {
if memoType != "" {
log.Print("Memo given in request but federation returned memo fields.")
errorBadRequest(w, errorResponseString("cannot_use_memo", "Memo given in request but federation returned memo fields"))
return
}
memoType = *destinationObject.MemoType
memo = *destinationObject.Memo
}
var memoMutator interface{}
switch {
case memoType == "":
break
case memoType == "id":
id, err := strconv.ParseUint(memo, 10, 64)
if err != nil {
log.WithFields(log.Fields{"memo": memo}).Print("Cannot convert memo_id value to uint64")
errorBadRequest(w, errorResponseString("cannot_convert_memo_id", "Cannot convert memo_id value"))
return
}
memoMutator = b.MemoID{id}
case memoType == "text":
memoMutator = &b.MemoText{memo}
default:
log.Print("Not supported memo type: ", memoType)
errorBadRequest(w, errorResponseString("memo_not_supported", "Not supported memo type"))
return
}
accountResponse, err := rh.Horizon.LoadAccount(sourceKeypair.Address())
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot load source account")
errorBadRequest(w, errorResponseString("source_not_exist", "source account does not exist"))
return
}
sequenceNumber, err := strconv.ParseUint(accountResponse.SequenceNumber, 10, 64)
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot convert SequenceNumber")
errorServerError(w)
return
}
transactionMutators := []b.TransactionMutator{
b.SourceAccount{source},
b.Sequence{sequenceNumber + 1},
b.Network{rh.Config.NetworkPassphrase},
operationBuilder.(b.TransactionMutator),
}
if memoMutator != nil {
transactionMutators = append(transactionMutators, memoMutator.(b.TransactionMutator))
}
tx := b.Transaction(transactionMutators...)
if tx.Err != nil {
log.WithFields(log.Fields{"err": tx.Err}).Print("Transaction builder error")
// TODO when build.OperationBuilder interface is ready check for
// create_account and payment errors separately
switch {
case tx.Err.Error() == "Asset code length is invalid":
errorBadRequest(w, errorResponseString("asset_code_invalid", "asset_code param is invalid"))
case strings.Contains(tx.Err.Error(), "cannot parse amount"):
errorBadRequest(w, errorResponseString("invalid_amount", "amount is invalid"))
default:
log.WithFields(log.Fields{"err": tx.Err}).Print("Transaction builder error")
errorServerError(w)
}
return
}
txe := tx.Sign(source)
txeB64, err := txe.Base64()
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot encode transaction envelope")
errorServerError(w)
return
}
submitResponse, err := rh.Horizon.SubmitTransaction(txeB64)
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Error submitting transaction")
errorServerError(w)
return
}
response, err := json.MarshalIndent(submitResponse, "", " ")
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot Marshal submitResponse")
errorServerError(w)
return
}
if submitResponse.Ledger != nil {
w.Write(response)
} else {
errorBadRequest(w, string(response))
}
}
// HandlerSend implements /send endpoint
func (rh *RequestHandler) HandlerSend(c web.C, w http.ResponseWriter, r *http.Request) {
request := &compliance.SendRequest{}
request.FromRequest(r)
err := request.Validate()
if err != nil {
errorResponse := err.(*protocols.ErrorResponse)
log.WithFields(errorResponse.LogData).Error(errorResponse.Error())
server.Write(w, errorResponse)
return
}
destinationObject, stellarToml, err := rh.FederationResolver.Resolve(request.Destination)
if err != nil {
log.WithFields(log.Fields{
"destination": request.Destination,
"err": err,
}).Print("Cannot resolve address")
server.Write(w, compliance.CannotResolveDestination)
return
}
if stellarToml.AuthServer == "" {
log.Print("No AUTH_SERVER in stellar.toml")
server.Write(w, compliance.AuthServerNotDefined)
return
}
var payWithMutator *b.PayWithPath
if request.SendMax != "" {
// Path payment
var sendAsset b.Asset
if request.SendAssetCode != "" && request.SendAssetIssuer != "" {
sendAsset = b.CreditAsset(request.SendAssetCode, request.SendAssetIssuer)
} else if request.SendAssetCode == "" && request.SendAssetIssuer == "" {
sendAsset = b.NativeAsset()
} else {
log.Print("Missing send asset param.")
server.Write(w, protocols.MissingParameterError)
return
}
payWith := b.PayWith(sendAsset, request.SendMax)
for _, asset := range request.Path {
if asset.Code == "" && asset.Issuer == "" {
payWith = payWith.Through(b.NativeAsset())
} else {
payWith = payWith.Through(b.CreditAsset(asset.Code, asset.Issuer))
}
}
payWithMutator = &payWith
}
mutators := []interface{}{
b.Destination{destinationObject.AccountID},
b.CreditAmount{
request.AssetCode,
request.AssetIssuer,
request.Amount,
},
}
if payWithMutator != nil {
mutators = append(mutators, *payWithMutator)
}
operationMutator := b.Payment(mutators...)
if operationMutator.Err != nil {
log.WithFields(log.Fields{
"err": operationMutator.Err,
}).Error("Error creating operation")
server.Write(w, protocols.InternalServerError)
return
}
// Fetch Sender Info
senderInfo := ""
if rh.Config.Callbacks.FetchInfo != "" {
fetchInfoRequest := compliance.FetchInfoRequest{Address: request.Sender}
resp, err := rh.Client.PostForm(
rh.Config.Callbacks.FetchInfo,
fetchInfoRequest.ToValues(),
)
if err != nil {
log.WithFields(log.Fields{
"fetch_info": rh.Config.Callbacks.FetchInfo,
"err": err,
}).Error("Error sending request to fetch_info server")
server.Write(w, protocols.InternalServerError)
return
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.WithFields(log.Fields{
"fetch_info": rh.Config.Callbacks.FetchInfo,
"err": err,
}).Error("Error reading fetch_info server response")
server.Write(w, protocols.InternalServerError)
return
}
if resp.StatusCode != http.StatusOK {
log.WithFields(log.Fields{
"fetch_info": rh.Config.Callbacks.FetchInfo,
"status": resp.StatusCode,
"body": string(body),
}).Error("Error response from fetch_info server")
server.Write(w, protocols.InternalServerError)
return
}
senderInfo = string(body)
}
memoPreimage := &memo.Memo{
Transaction: memo.Transaction{
SenderInfo: senderInfo,
Route: destinationObject.Memo,
Extra: request.ExtraMemo,
},
}
memoJSON := memoPreimage.Marshal()
memoHashBytes := sha256.Sum256(memoJSON)
memoMutator := &b.MemoHash{xdr.Hash(memoHashBytes)}
transaction, err := submitter.BuildTransaction(
request.Source,
rh.Config.NetworkPassphrase,
operationMutator,
memoMutator,
)
var txBytes bytes.Buffer
_, err = xdr.Marshal(&txBytes, transaction)
if err != nil {
log.Error("Error mashaling transaction")
server.Write(w, protocols.InternalServerError)
return
}
txBase64 := base64.StdEncoding.EncodeToString(txBytes.Bytes())
authData := compliance.AuthData{
Sender: request.Sender,
NeedInfo: rh.Config.NeedsAuth,
Tx: txBase64,
Memo: string(memoJSON),
}
data, err := json.Marshal(authData)
if err != nil {
log.Error("Error mashaling authData")
server.Write(w, protocols.InternalServerError)
return
}
sig, err := rh.SignatureSignerVerifier.Sign(rh.Config.Keys.SigningSeed, data)
if err != nil {
log.Error("Error signing authData")
server.Write(w, protocols.InternalServerError)
return
}
authRequest := compliance.AuthRequest{
Data: string(data),
Signature: sig,
}
resp, err := rh.Client.PostForm(
stellarToml.AuthServer,
authRequest.ToValues(),
)
if err != nil {
log.WithFields(log.Fields{
"auth_server": stellarToml.AuthServer,
"err": err,
}).Error("Error sending request to auth server")
server.Write(w, protocols.InternalServerError)
return
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Error("Error reading auth server response")
server.Write(w, protocols.InternalServerError)
return
}
if resp.StatusCode != 200 {
log.WithFields(log.Fields{
"status": resp.StatusCode,
"body": string(body),
}).Error("Error response from auth server")
server.Write(w, protocols.InternalServerError)
return
}
var authResponse compliance.AuthResponse
err = json.Unmarshal(body, &authResponse)
if err != nil {
log.WithFields(log.Fields{
"status": resp.StatusCode,
"body": string(body),
}).Error("Error unmarshalling auth response")
server.Write(w, protocols.InternalServerError)
return
}
response := compliance.SendResponse{
AuthResponse: authResponse,
TransactionXdr: txBase64,
}
server.Write(w, &response)
}
// Payment implements /payment endpoint
func (rh *RequestHandler) Payment(w http.ResponseWriter, r *http.Request) {
request := &bridge.PaymentRequest{}
request.FromRequest(r)
err := request.Validate()
if err != nil {
errorResponse := err.(*protocols.ErrorResponse)
log.WithFields(errorResponse.LogData).Error(errorResponse.Error())
server.Write(w, errorResponse)
return
}
if request.Source == "" {
request.Source = rh.Config.Accounts.BaseSeed
}
sourceKeypair, _ := keypair.Parse(request.Source)
var submitResponse horizon.SubmitTransactionResponse
var submitError error
if request.ExtraMemo != "" && rh.Config.Compliance != "" {
// Compliance server part
sendRequest := request.ToComplianceSendRequest()
resp, err := rh.Client.PostForm(
rh.Config.Compliance+"/send",
sendRequest.ToValues(),
)
if err != nil {
log.WithFields(log.Fields{"err": err}).Error("Error sending request to compliance server")
server.Write(w, protocols.InternalServerError)
return
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Error("Error reading compliance server response")
server.Write(w, protocols.InternalServerError)
return
}
if resp.StatusCode != 200 {
log.WithFields(log.Fields{
"status": resp.StatusCode,
"body": string(body),
}).Error("Error response from compliance server")
server.Write(w, protocols.InternalServerError)
return
}
var complianceSendResponse compliance.SendResponse
err = json.Unmarshal(body, &complianceSendResponse)
if err != nil {
log.Error("Error unmarshalling from compliance server")
server.Write(w, protocols.InternalServerError)
return
}
if complianceSendResponse.AuthResponse.InfoStatus == compliance.AuthStatusPending ||
complianceSendResponse.AuthResponse.TxStatus == compliance.AuthStatusPending {
log.WithFields(log.Fields{"response": complianceSendResponse}).Info("Compliance response pending")
server.Write(w, bridge.NewPaymentPendingError(complianceSendResponse.AuthResponse.Pending))
return
}
if complianceSendResponse.AuthResponse.InfoStatus == compliance.AuthStatusDenied ||
complianceSendResponse.AuthResponse.TxStatus == compliance.AuthStatusDenied {
log.WithFields(log.Fields{"response": complianceSendResponse}).Info("Compliance response denied")
server.Write(w, bridge.PaymentDenied)
return
}
var tx xdr.Transaction
err = xdr.SafeUnmarshalBase64(complianceSendResponse.TransactionXdr, &tx)
if err != nil {
log.Error("Error unmarshalling transaction returned by compliance server")
server.Write(w, protocols.InternalServerError)
return
}
submitResponse, submitError = rh.TransactionSubmitter.SignAndSubmitRawTransaction(request.Source, &tx)
} else {
// Payment without compliance server
destinationObject, _, err := rh.FederationResolver.Resolve(request.Destination)
if err != nil {
log.WithFields(log.Fields{"destination": request.Destination, "err": err}).Print("Cannot resolve address")
server.Write(w, bridge.PaymentCannotResolveDestination)
return
}
_, err = keypair.Parse(destinationObject.AccountID)
if err != nil {
log.WithFields(log.Fields{"AccountId": destinationObject.AccountID}).Print("Invalid AccountId in destination")
server.Write(w, protocols.NewInvalidParameterError("destination", request.Destination))
return
}
var payWithMutator *b.PayWithPath
if request.SendMax != "" {
// Path payment
var sendAsset b.Asset
if request.SendAssetCode == "" && request.SendAssetIssuer == "" {
sendAsset = b.NativeAsset()
} else {
sendAsset = b.CreditAsset(request.SendAssetCode, request.SendAssetIssuer)
}
payWith := b.PayWith(sendAsset, request.SendMax)
for i := 0; ; i++ {
codeFieldName := fmt.Sprintf("path[%d][asset_code]", i)
issuerFieldName := fmt.Sprintf("path[%d][asset_issuer]", i)
// If the element does not exist in PostForm break the loop
if _, exists := r.PostForm[codeFieldName]; !exists {
break
}
code := r.PostFormValue(codeFieldName)
issuer := r.PostFormValue(issuerFieldName)
if code == "" && issuer == "" {
payWith = payWith.Through(b.NativeAsset())
} else {
payWith = payWith.Through(b.CreditAsset(code, issuer))
}
}
payWithMutator = &payWith
}
var operationBuilder interface{}
if request.AssetCode != "" && request.AssetIssuer != "" {
mutators := []interface{}{
b.Destination{destinationObject.AccountID},
b.CreditAmount{request.AssetCode, request.AssetIssuer, request.Amount},
}
if payWithMutator != nil {
mutators = append(mutators, *payWithMutator)
}
operationBuilder = b.Payment(mutators...)
} else {
mutators := []interface{}{
b.Destination{destinationObject.AccountID},
b.NativeAmount{request.Amount},
}
if payWithMutator != nil {
mutators = append(mutators, *payWithMutator)
}
// Check if destination account exist
_, err = rh.Horizon.LoadAccount(destinationObject.AccountID)
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Error loading account")
operationBuilder = b.CreateAccount(mutators...)
} else {
operationBuilder = b.Payment(mutators...)
}
}
memoType := request.MemoType
memo := request.Memo
if destinationObject.MemoType != "" {
if request.MemoType != "" {
log.Print("Memo given in request but federation returned memo fields.")
server.Write(w, bridge.PaymentCannotUseMemo)
return
}
memoType = destinationObject.MemoType
memo = destinationObject.Memo
}
var memoMutator interface{}
switch {
case memoType == "":
break
case memoType == "id":
id, err := strconv.ParseUint(memo, 10, 64)
if err != nil {
log.WithFields(log.Fields{"memo": memo}).Print("Cannot convert memo_id value to uint64")
server.Write(w, protocols.NewInvalidParameterError("memo", request.Memo))
return
}
memoMutator = b.MemoID{id}
case memoType == "text":
memoMutator = &b.MemoText{memo}
case memoType == "hash":
memoBytes, err := hex.DecodeString(memo)
if err != nil || len(memoBytes) != 32 {
log.WithFields(log.Fields{"memo": memo}).Print("Cannot decode hash memo value")
server.Write(w, protocols.NewInvalidParameterError("memo", request.Memo))
return
}
var b32 [32]byte
copy(b32[:], memoBytes[0:32])
hash := xdr.Hash(b32)
memoMutator = &b.MemoHash{hash}
default:
log.Print("Not supported memo type: ", memoType)
server.Write(w, protocols.NewInvalidParameterError("memo", request.Memo))
return
}
accountResponse, err := rh.Horizon.LoadAccount(sourceKeypair.Address())
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot load source account")
server.Write(w, bridge.PaymentSourceNotExist)
return
}
sequenceNumber, err := strconv.ParseUint(accountResponse.SequenceNumber, 10, 64)
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot convert SequenceNumber")
server.Write(w, protocols.InternalServerError)
return
}
transactionMutators := []b.TransactionMutator{
b.SourceAccount{request.Source},
b.Sequence{sequenceNumber + 1},
b.Network{rh.Config.NetworkPassphrase},
operationBuilder.(b.TransactionMutator),
}
if memoMutator != nil {
transactionMutators = append(transactionMutators, memoMutator.(b.TransactionMutator))
}
tx := b.Transaction(transactionMutators...)
if tx.Err != nil {
log.WithFields(log.Fields{"err": tx.Err}).Print("Transaction builder error")
// TODO when build.OperationBuilder interface is ready check for
// create_account and payment errors separately
switch {
case tx.Err.Error() == "Asset code length is invalid":
server.Write(
w,
protocols.NewInvalidParameterError("asset_code", request.AssetCode),
)
case strings.Contains(tx.Err.Error(), "cannot parse amount"):
server.Write(
w,
protocols.NewInvalidParameterError("amount", request.Amount),
)
default:
log.WithFields(log.Fields{"err": tx.Err}).Print("Transaction builder error")
server.Write(w, protocols.InternalServerError)
}
return
}
txe := tx.Sign(request.Source)
txeB64, err := txe.Base64()
if err != nil {
log.WithFields(log.Fields{"error": err}).Error("Cannot encode transaction envelope")
server.Write(w, protocols.InternalServerError)
return
}
submitResponse, submitError = rh.Horizon.SubmitTransaction(txeB64)
}
if submitError != nil {
log.WithFields(log.Fields{"error": submitError}).Error("Error submitting transaction")
server.Write(w, protocols.InternalServerError)
return
}
errorResponse := bridge.ErrorFromHorizonResponse(submitResponse)
if errorResponse != nil {
log.WithFields(errorResponse.LogData).Error(errorResponse.Error())
server.Write(w, errorResponse)
return
}
// Path payment send amount
if submitResponse.ResultXdr != nil {
var transactionResult xdr.TransactionResult
reader := strings.NewReader(*submitResponse.ResultXdr)
b64r := base64.NewDecoder(base64.StdEncoding, reader)
_, err := xdr.Unmarshal(b64r, &transactionResult)
if err == nil && transactionResult.Result.Code == xdr.TransactionResultCodeTxSuccess {
operationResult := (*transactionResult.Result.Results)[0]
if operationResult.Tr.PathPaymentResult != nil {
sendAmount := operationResult.Tr.PathPaymentResult.SendAmount()
submitResponse.SendAmount = amount.String(sendAmount)
}
}
}
server.Write(w, &submitResponse)
}
func TestTransactionSubmitter(t *testing.T) {
mockHorizon := new(mocks.MockHorizon)
mockEntityManager := new(mocks.MockEntityManager)
mocks.PredefinedTime = time.Now()
Convey("TransactionSubmitter", t, func() {
seed := "SDZT3EJZ7FZRYNTLOZ7VH6G5UYBFO2IO3Q5PGONMILPCZU3AL7QNZHTE"
accountID := "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H"
Convey("LoadAccount", func() {
transactionSubmitter := NewTransactionSubmitter(
mockHorizon,
mockEntityManager,
"Test SDF Network ; September 2015",
mocks.Now,
)
Convey("When seed is invalid", func() {
_, err := transactionSubmitter.LoadAccount("invalidSeed")
assert.NotNil(t, err)
})
Convey("When there is a problem loading an account", func() {
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{},
errors.New("Account not found"),
).Once()
_, err := transactionSubmitter.LoadAccount(seed)
assert.NotNil(t, err)
mockHorizon.AssertExpectations(t)
})
Convey("Successfully loads an account", func() {
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{
AccountID: accountID,
SequenceNumber: "10372672437354496",
},
nil,
).Once()
account, err := transactionSubmitter.LoadAccount(seed)
assert.Nil(t, err)
assert.Equal(t, account.Keypair.Address(), accountID)
assert.Equal(t, account.Seed, seed)
assert.Equal(t, account.SequenceNumber, uint64(10372672437354496))
mockHorizon.AssertExpectations(t)
})
})
Convey("SubmitTransaction", func() {
Convey("Submits transaction without a memo", func() {
operation := b.Payment(
b.Destination{"GB3W7VQ2A2IOQIS4LUFUMRC2DWXONUDH24ROLE6RS4NGUNHVSXKCABOM"},
b.NativeAmount{"100"},
)
Convey("Error response from horizon", func() {
transactionSubmitter := NewTransactionSubmitter(
mockHorizon,
mockEntityManager,
"Test SDF Network ; September 2015",
mocks.Now,
)
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{
AccountID: accountID,
SequenceNumber: "10372672437354496",
},
nil,
).Once()
err := transactionSubmitter.InitAccount(seed)
assert.Nil(t, err)
txB64 := "AAAAAJbmB/pwwloZXCaCr9WR3Fue2lNhHGaDWKVOWO7MPq4QAAAAZAAk2eQAAAABAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAd2/WGgaQ6CJcXQtGRFodrubQZ9ci5ZPRlxpqNPWV1CAAAAAAAAAAADuaygAAAAAAAAAAAcw+rhAAAABAyFjIMIZOtstCWtZlVBDj1AhTmsk5v1i2GGY4by2b5mgZoXXGgFTB8sfbQav0LzFKCcxY8h+9xPMT2e9xznAfDw=="
// Persist sending transaction
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "4f885999be6ea7891052a53e496bcfb5c5a1a5bfb31923f649b028fdc74dd050", transaction.TransactionID)
assert.Equal(t, "sending", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
// Persist failure
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "4f885999be6ea7891052a53e496bcfb5c5a1a5bfb31923f649b028fdc74dd050", transaction.TransactionID)
assert.Equal(t, "failure", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
mockHorizon.On("SubmitTransaction", txB64).Return(
horizon.SubmitTransactionResponse{
Ledger: nil,
Extras: &horizon.SubmitTransactionResponseExtras{
ResultXdr: "AAAAAAAAAGT/////AAAAAQAAAAAAAAAB////+wAAAAA=", // no_destination
},
},
nil,
).Once()
_, err = transactionSubmitter.SubmitTransaction(seed, operation, nil)
assert.Nil(t, err)
mockHorizon.AssertExpectations(t)
})
Convey("Bad Sequence response from horizon", func() {
transactionSubmitter := NewTransactionSubmitter(
mockHorizon,
mockEntityManager,
"Test SDF Network ; September 2015",
mocks.Now,
)
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{
AccountID: accountID,
SequenceNumber: "10372672437354496",
},
nil,
).Once()
err := transactionSubmitter.InitAccount(seed)
assert.Nil(t, err)
txB64 := "AAAAAJbmB/pwwloZXCaCr9WR3Fue2lNhHGaDWKVOWO7MPq4QAAAAZAAk2eQAAAABAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAd2/WGgaQ6CJcXQtGRFodrubQZ9ci5ZPRlxpqNPWV1CAAAAAAAAAAADuaygAAAAAAAAAAAcw+rhAAAABAyFjIMIZOtstCWtZlVBDj1AhTmsk5v1i2GGY4by2b5mgZoXXGgFTB8sfbQav0LzFKCcxY8h+9xPMT2e9xznAfDw=="
// Persist sending transaction
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "4f885999be6ea7891052a53e496bcfb5c5a1a5bfb31923f649b028fdc74dd050", transaction.TransactionID)
assert.Equal(t, "sending", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
// Persist failure
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "4f885999be6ea7891052a53e496bcfb5c5a1a5bfb31923f649b028fdc74dd050", transaction.TransactionID)
assert.Equal(t, "failure", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
mockHorizon.On("SubmitTransaction", txB64).Return(
horizon.SubmitTransactionResponse{
Ledger: nil,
Extras: &horizon.SubmitTransactionResponseExtras{
ResultXdr: "AAAAAAAAAAD////7AAAAAA==", // tx_bad_seq
},
},
nil,
).Once()
// Updating sequence number
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{
AccountID: accountID,
SequenceNumber: "100",
},
nil,
).Once()
_, err = transactionSubmitter.SubmitTransaction(seed, operation, nil)
assert.Nil(t, err)
assert.Equal(t, uint64(100), transactionSubmitter.Accounts[seed].SequenceNumber)
mockHorizon.AssertExpectations(t)
})
Convey("Successfully submits a transaction", func() {
transactionSubmitter := NewTransactionSubmitter(
mockHorizon,
mockEntityManager,
"Test SDF Network ; September 2015",
mocks.Now,
)
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{
AccountID: accountID,
SequenceNumber: "10372672437354496",
},
nil,
).Once()
err := transactionSubmitter.InitAccount(seed)
assert.Nil(t, err)
txB64 := "AAAAAJbmB/pwwloZXCaCr9WR3Fue2lNhHGaDWKVOWO7MPq4QAAAAZAAk2eQAAAABAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAd2/WGgaQ6CJcXQtGRFodrubQZ9ci5ZPRlxpqNPWV1CAAAAAAAAAAADuaygAAAAAAAAAAAcw+rhAAAABAyFjIMIZOtstCWtZlVBDj1AhTmsk5v1i2GGY4by2b5mgZoXXGgFTB8sfbQav0LzFKCcxY8h+9xPMT2e9xznAfDw=="
// Persist sending transaction
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "4f885999be6ea7891052a53e496bcfb5c5a1a5bfb31923f649b028fdc74dd050", transaction.TransactionID)
assert.Equal(t, "sending", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
// Persist failure
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "4f885999be6ea7891052a53e496bcfb5c5a1a5bfb31923f649b028fdc74dd050", transaction.TransactionID)
assert.Equal(t, "success", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
ledger := uint64(1486276)
mockHorizon.On("SubmitTransaction", txB64).Return(
horizon.SubmitTransactionResponse{Ledger: &ledger},
nil,
).Once()
response, err := transactionSubmitter.SubmitTransaction(seed, operation, nil)
assert.Nil(t, err)
assert.Equal(t, *response.Ledger, ledger)
assert.Equal(t, uint64(10372672437354497), transactionSubmitter.Accounts[seed].SequenceNumber)
mockHorizon.AssertExpectations(t)
})
})
Convey("Submits transaction with a memo", func() {
operation := b.Payment(
b.Destination{"GB3W7VQ2A2IOQIS4LUFUMRC2DWXONUDH24ROLE6RS4NGUNHVSXKCABOM"},
b.NativeAmount{"100"},
)
memo := b.MemoText{"Testing!"}
Convey("Successfully submits a transaction", func() {
transactionSubmitter := NewTransactionSubmitter(
mockHorizon,
mockEntityManager,
"Test SDF Network ; September 2015",
mocks.Now,
)
mockHorizon.On(
"LoadAccount",
accountID,
).Return(
horizon.AccountResponse{
AccountID: accountID,
SequenceNumber: "10372672437354496",
},
nil,
).Once()
err := transactionSubmitter.InitAccount(seed)
assert.Nil(t, err)
txB64 := "AAAAAJbmB/pwwloZXCaCr9WR3Fue2lNhHGaDWKVOWO7MPq4QAAAAZAAk2eQAAAABAAAAAAAAAAEAAAAIVGVzdGluZyEAAAABAAAAAAAAAAEAAAAAd2/WGgaQ6CJcXQtGRFodrubQZ9ci5ZPRlxpqNPWV1CAAAAAAAAAAADuaygAAAAAAAAAAAcw+rhAAAABAU5ahFsd28sVKSUFcmAiEf+zSLXhf9HG/pJuQirR0s43zs7Y43vM8T3sIvJWHgwMADaZiy/D+evYWd/vS/uO8Ag=="
// Persist sending transaction
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "60cb3c020b0c97352cbabdf68a822b04baea61927b0f1ac31260a9f8d0150316", transaction.TransactionID)
assert.Equal(t, "sending", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
// Persist failure
mockEntityManager.On(
"Persist",
mock.AnythingOfType("*entities.SentTransaction"),
).Return(nil).Once().Run(func(args mock.Arguments) {
transaction := args.Get(0).(*entities.SentTransaction)
assert.Equal(t, "60cb3c020b0c97352cbabdf68a822b04baea61927b0f1ac31260a9f8d0150316", transaction.TransactionID)
assert.Equal(t, "success", string(transaction.Status))
assert.Equal(t, "GCLOMB72ODBFUGK4E2BK7VMR3RNZ5WSTMEOGNA2YUVHFR3WMH2XBAB6H", transaction.Source)
assert.Equal(t, mocks.PredefinedTime, transaction.SubmittedAt)
assert.Equal(t, txB64, transaction.EnvelopeXdr)
})
ledger := uint64(1486276)
mockHorizon.On("SubmitTransaction", txB64).Return(
horizon.SubmitTransactionResponse{Ledger: &ledger},
nil,
).Once()
response, err := transactionSubmitter.SubmitTransaction(seed, operation, memo)
assert.Nil(t, err)
assert.Equal(t, *response.Ledger, ledger)
assert.Equal(t, uint64(10372672437354497), transactionSubmitter.Accounts[seed].SequenceNumber)
mockHorizon.AssertExpectations(t)
})
})
})
})
}
func (rh *RequestHandler) Send(w http.ResponseWriter, r *http.Request) {
destination := r.PostFormValue("destination")
assetCode := r.PostFormValue("asset_code")
amount := r.PostFormValue("amount")
destinationObject, err := rh.AddressResolver.Resolve(destination)
if err != nil {
log.WithFields(log.Fields{"destination": destination}).Print("Cannot resolve address")
errorBadRequest(w, errorResponseString("invalid_destination", "Cannot resolve destination"))
return
}
_, err = keypair.Parse(destinationObject.AccountId)
if err != nil {
log.WithFields(log.Fields{"AccountId": destinationObject.AccountId}).Print("Invalid AccountId in destination")
errorBadRequest(w, errorResponseString("invalid_destination", "destination parameter is invalid"))
return
}
if !rh.isAssetAllowed(assetCode) {
log.Print("Asset code not allowed: ", assetCode)
errorBadRequest(w, errorResponseString("invalid_asset_code", "Given assetCode not allowed"))
return
}
issuingKeypair, err := keypair.Parse(*rh.Config.Accounts.IssuingSeed)
if err != nil {
log.Print("Invalid issuingSeed")
errorServerError(w)
return
}
operationMutator := b.Payment(
b.Destination{destinationObject.AccountId},
b.CreditAmount{assetCode, issuingKeypair.Address(), amount},
)
if operationMutator.Err != nil {
log.Print("Error creating operationMutator ", operationMutator.Err)
errorServerError(w)
return
}
memoType := r.PostFormValue("memo_type")
memo := r.PostFormValue("memo")
if !(((memoType == "") && (memo == "")) || ((memoType != "") && (memo != ""))) {
log.Print("Missing one of memo params.")
errorBadRequest(w, errorResponseString("memo_missing_param", "When passing memo both params: `memo_type`, `memo` are required"))
return
}
if destinationObject.MemoType != nil {
if memoType != "" {
log.Print("Memo given in request but federation returned memo fields.")
errorBadRequest(w, errorResponseString("cannot_use_memo", "Memo given in request but federation returned memo fields"))
return
}
memoType = *destinationObject.MemoType
memo = *destinationObject.Memo
}
var memoMutator interface{}
switch {
case memoType == "":
break
case memoType == "id":
id, err := strconv.ParseUint(memo, 10, 64)
if err != nil {
log.WithFields(log.Fields{"memo": memo}).Print("Cannot convert memo_id value to uint64")
errorBadRequest(w, errorResponseString("cannot_convert_memo_id", "Cannot convert memo_id value"))
return
}
memoMutator = b.MemoID{id}
case memoType == "text":
memoMutator = b.MemoText{memo}
default:
log.Print("Not supported memo type: ", memoType)
errorBadRequest(w, errorResponseString("memo_not_supported", "Not supported memo type"))
return
}
submitResponse, err := rh.TransactionSubmitter.SubmitTransaction(
*rh.Config.Accounts.IssuingSeed,
operationMutator,
memoMutator,
)
if err != nil {
log.Print("Error submitting transaction ", err)
errorServerError(w)
return
}
if submitResponse.Errors != nil {
var errorString string
if submitResponse.Errors.OperationErrorCode != "" {
switch submitResponse.Errors.OperationErrorCode {
case "payment_malformed":
errorString = errorResponseString(
"payment_malformed",
"Operation is malformed.",
)
case "payment_underfunded":
errorString = errorResponseString(
"payment_underfunded",
"Not enough funds to send this transaction.",
)
case "payment_src_no_trust":
errorString = errorResponseString(
"payment_src_no_trust",
"No trustline on source account.",
)
case "payment_src_not_authorized":
errorString = errorResponseString(
"payment_src_not_authorized",
"Source not authorized to transfer.",
)
case "payment_no_destination":
errorString = errorResponseString(
"payment_no_destination",
"Destination account does not exist.",
)
case "payment_no_trust":
errorString = errorResponseString(
"payment_no_trust",
"Destination missing a trust line for asset.",
)
case "payment_not_authorized":
errorString = errorResponseString(
"payment_not_authorized",
"Destination not authorized to trust asset. It needs to be allowed first by using /authorize endpoint.",
)
case "payment_line_full":
errorString = errorResponseString(
"payment_line_full",
"Sending this payment would make a destination go above their limit.",
)
case "payment_no_issuer":
errorString = errorResponseString(
"payment_no_issuer",
"Missing issuer on asset.",
)
default:
errorServerError(w)
return
}
} else if submitResponse.Errors.TransactionErrorCode != "" {
switch submitResponse.Errors.TransactionErrorCode {
case "transaction_bad_seq":
errorString = errorResponseString(
"transaction_bad_seq",
"Bad Sequence. Please, try again.",
)
default:
errorServerError(w)
return
}
}
errorBadRequest(w, errorString)
return
}
json, err := json.MarshalIndent(submitResponse, "", " ")
if err != nil {
errorServerError(w)
return
}
w.Write(json)
}
func TestRequestHandlerSend(t *testing.T) {
mockAddressResolverHelper := new(MockAddressResolverHelper)
addressResolver := AddressResolver{mockAddressResolverHelper}
mockTransactionSubmitter := new(mocks.MockTransactionSubmitter)
IssuingSeed := "SC34WILLHVADXMP6ACPMIRA6TRAWJMVCLPFNW7S6MUMXJVLAZUC4EWHP"
AuthorizingSeed := "SC37TBSIAYKIDQ6GTGLT2HSORLIHZQHBXVFI5P5K4Q5TSHRTRBK3UNWG"
config := config.Config{
Assets: []string{"USD", "EUR"},
Accounts: &config.Accounts{
// GD4I7AFSLZGTDL34TQLWJOM2NHLIIOEKD5RHHZUW54HERBLSIRKUOXRR
IssuingSeed: &IssuingSeed,
// GBQXA3ABGQGTCLEVZIUTDRWWJOQD5LSAEDZAG7GMOGD2HBLWONGUVO4I
AuthorizingSeed: &AuthorizingSeed,
},
}
issuingKeypair, err := keypair.Parse(*config.Accounts.IssuingSeed)
if err != nil {
panic(err)
}
requestHandler := RequestHandler{
AddressResolver: addressResolver,
Config: &config,
TransactionSubmitter: mockTransactionSubmitter,
}
testServer := httptest.NewServer(http.HandlerFunc(requestHandler.Send))
defer testServer.Close()
Convey("Given send request", t, func() {
Convey("When destination is invalid", func() {
destination := "GD3YBOYIUVLU"
assetCode := "USD"
Convey("it should return error", func() {
statusCode, response := getResponse(testServer, url.Values{"destination": {destination}, "asset_code": {assetCode}})
responseString := strings.TrimSpace(string(response))
assert.Equal(t, 400, statusCode)
assert.Equal(t, errorResponseString("invalid_destination", "destination parameter is invalid"), responseString)
})
})
Convey("When assetCode is invalid", func() {
destination := "GDSIKW43UA6JTOA47WVEBCZ4MYC74M3GNKNXTVDXFHXYYTNO5GGVN632"
assetCode := "GBP"
Convey("it should return error", func() {
statusCode, response := getResponse(testServer, url.Values{"destination": {destination}, "asset_code": {assetCode}})
responseString := strings.TrimSpace(string(response))
assert.Equal(t, 400, statusCode)
assert.Equal(t, errorResponseString("invalid_asset_code", "Given assetCode not allowed"), responseString)
})
})
Convey("When destination is a Stellar address", func() {
params := url.Values{
"asset_code": {"USD"},
"amount": {"20"},
"destination": {"bob*stellar.org"},
}
Convey("When stellar.toml does not exist", func() {
mockAddressResolverHelper.On(
"GetStellarToml",
"stellar.org",
).Return(
StellarToml{},
errors.New("stellar.toml response status code indicates error"),
).Once()
Convey("it should return error", func() {
statusCode, response := getResponse(testServer, params)
responseString := strings.TrimSpace(string(response))
assert.Equal(t, 400, statusCode)
assert.Equal(t, errorResponseString("invalid_destination", "Cannot resolve destination"), responseString)
})
})
Convey("When stellar.toml does not contain FEDERATION_SERVER", func() {
mockAddressResolverHelper.On(
"GetStellarToml",
"stellar.org",
).Return(
StellarToml{},
nil,
).Once()
Convey("it should return error", func() {
statusCode, response := getResponse(testServer, params)
responseString := strings.TrimSpace(string(response))
assert.Equal(t, 400, statusCode)
assert.Equal(t, errorResponseString("invalid_destination", "Cannot resolve destination"), responseString)
})
})
Convey("When GetDestination() errors", func() {
federationServer := "http://api.example.com"
mockAddressResolverHelper.On(
"GetStellarToml",
"stellar.org",
).Return(
StellarToml{&federationServer},
nil,
).Once()
mockAddressResolverHelper.On(
"GetDestination",
"http://api.example.com",
"bob*stellar.org",
).Return(
StellarDestination{},
errors.New("Only HTTPS federation servers allowed"),
).Once()
Convey("it should return error", func() {
statusCode, response := getResponse(testServer, params)
responseString := strings.TrimSpace(string(response))
assert.Equal(t, 400, statusCode)
assert.Equal(t, errorResponseString("invalid_destination", "Cannot resolve destination"), responseString)
})
})
Convey("When federation response is correct", func() {
federationServer := "http://api.example.com"
mockAddressResolverHelper.On(
"GetStellarToml",
"stellar.org",
).Return(
StellarToml{&federationServer},
nil,
).Once()
mockAddressResolverHelper.On(
"GetDestination",
"http://api.example.com",
"bob*stellar.org",
).Return(StellarDestination{AccountId: "GDSIKW43UA6JTOA47WVEBCZ4MYC74M3GNKNXTVDXFHXYYTNO5GGVN632"}, nil).Once()
var ledger uint64
ledger = 1988728
expectedSubmitResponse := horizon.SubmitTransactionResponse{&ledger, nil, nil}
operation := b.Payment(
b.Destination{"GDSIKW43UA6JTOA47WVEBCZ4MYC74M3GNKNXTVDXFHXYYTNO5GGVN632"},
b.CreditAmount{
params.Get("asset_code"),
issuingKeypair.Address(),
params.Get("amount"),
},
)
mockTransactionSubmitter.On(
"SubmitTransaction",
*config.Accounts.IssuingSeed,
operation,
nil,
).Return(expectedSubmitResponse, nil).Once()
Convey("it should return success", func() {
statusCode, response := getResponse(testServer, params)
responseString := strings.TrimSpace(string(response))
expectedResponse, err := json.MarshalIndent(expectedSubmitResponse, "", " ")
if err != nil {
panic(err)
}
assert.Equal(t, 200, statusCode)
assert.Equal(t, string(expectedResponse), responseString)
})
})
})
Convey("When destination is an accountId", func() {
params := url.Values{
"asset_code": {"USD"},
"amount": {"20"},
"destination": {"GDSIKW43UA6JTOA47WVEBCZ4MYC74M3GNKNXTVDXFHXYYTNO5GGVN632"},
}
Convey("When params are valid", func() {
operation := b.Payment(
b.Destination{params.Get("destination")},
b.CreditAmount{
params.Get("asset_code"),
issuingKeypair.Address(),
params.Get("amount"),
},
)
Convey("transaction fails", func() {
mockTransactionSubmitter.On(
"SubmitTransaction",
*config.Accounts.IssuingSeed,
operation,
nil,
).Return(
horizon.SubmitTransactionResponse{},
errors.New("Error sending transaction"),
).Once()
Convey("it should return server error", func() {
statusCode, response := getResponse(testServer, params)
responseString := strings.TrimSpace(string(response))
assert.Equal(t, 500, statusCode)
assert.Equal(t, getServerErrorResponseString(), responseString)
mockTransactionSubmitter.AssertExpectations(t)
})
})
Convey("transaction succeeds (no memo)", func() {
var ledger uint64
ledger = 100
expectedSubmitResponse := horizon.SubmitTransactionResponse{
Ledger: &ledger,
}
mockTransactionSubmitter.On(
"SubmitTransaction",
*config.Accounts.IssuingSeed,
operation,
nil,
).Return(expectedSubmitResponse, nil).Once()
Convey("it should succeed", func() {
statusCode, response := getResponse(testServer, params)
var actualSubmitTransactionResponse horizon.SubmitTransactionResponse
json.Unmarshal(response, &actualSubmitTransactionResponse)
assert.Equal(t, 200, statusCode)
assert.Equal(t, expectedSubmitResponse, actualSubmitTransactionResponse)
mockTransactionSubmitter.AssertExpectations(t)
})
})
Convey("transaction succeeds (with memo)", func() {
params.Add("memo_type", "id")
params.Add("memo", "123")
var ledger uint64
ledger = 100
expectedSubmitResponse := horizon.SubmitTransactionResponse{
Ledger: &ledger,
}
memo := b.MemoID{123}
mockTransactionSubmitter.On(
"SubmitTransaction",
*config.Accounts.IssuingSeed,
operation,
memo,
).Return(expectedSubmitResponse, nil).Once()
Convey("it should succeed", func() {
statusCode, response := getResponse(testServer, params)
var actualSubmitTransactionResponse horizon.SubmitTransactionResponse
json.Unmarshal(response, &actualSubmitTransactionResponse)
assert.Equal(t, 200, statusCode)
assert.Equal(t, expectedSubmitResponse, actualSubmitTransactionResponse)
mockTransactionSubmitter.AssertExpectations(t)
})
})
})
})
})
}