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feat: endpoints for gRPC submit module for LocalTxSubmission
Signed-off-by: Chris Gianelloni <wolf31o2@blinklabs.io>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,97 @@ | ||
| // Copyright 2024 Blink Labs Software | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package utxorpc | ||
|
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| import ( | ||
| "context" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "log" | ||
|
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| connect "connectrpc.com/connect" | ||
| "github.com/blinklabs-io/gouroboros/ledger" | ||
| submit "github.com/utxorpc/go-codegen/utxorpc/v1alpha/submit" | ||
| "github.com/utxorpc/go-codegen/utxorpc/v1alpha/submit/submitconnect" | ||
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| "github.com/blinklabs-io/cardano-node-api/internal/node" | ||
| ) | ||
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| // submitServiceServer implements the SubmitService API | ||
| type submitServiceServer struct { | ||
| submitconnect.UnimplementedSubmitServiceHandler | ||
| } | ||
|
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| // SubmitTx | ||
| func (s *submitServiceServer) SubmitTx( | ||
| ctx context.Context, | ||
| req *connect.Request[submit.SubmitTxRequest], | ||
| ) (*connect.Response[submit.SubmitTxResponse], error) { | ||
|
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| // txRawList | ||
| txRawList := req.Msg.GetTx() // []*AnyChainTx | ||
| resp := &submit.SubmitTxResponse{} | ||
| log.Printf("Got a SubmitTx request with %d transactions", len(txRawList)) | ||
|
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| // Connect to node | ||
| oConn, err := node.GetConnection(nil) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer func() { | ||
| // Close Ouroboros connection | ||
| oConn.Close() | ||
| }() | ||
|
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| // Loop through the transactions and submit each | ||
| errorList := []error{} | ||
| for i, txi := range txRawList { | ||
| txRawBytes := txi.GetRaw() // raw bytes | ||
| txType, err := ledger.DetermineTransactionType(txRawBytes) | ||
| ref := []byte{} | ||
| if err != nil { | ||
| resp.Ref = append(resp.Ref, ref) | ||
| errorList[i] = err | ||
| continue | ||
| } | ||
| tx, err := ledger.NewTransactionFromCbor(txType, txRawBytes) | ||
| if err != nil { | ||
| resp.Ref = append(resp.Ref, ref) | ||
| errorList[i] = err | ||
| continue | ||
| } | ||
| // Submit the transaction | ||
| err = oConn.LocalTxSubmission().Client.SubmitTx(uint16(txType), txRawBytes) | ||
| if err != nil { | ||
| resp.Ref = append(resp.Ref, ref) | ||
| errorList[i] = fmt.Errorf("%s", err.Error()) | ||
| continue | ||
| } | ||
| txHexBytes, err := hex.DecodeString(tx.Hash()) | ||
| if err != nil { | ||
| resp.Ref = append(resp.Ref, ref) | ||
| errorList[i] = err | ||
| continue | ||
| } | ||
| errorList[i] = nil | ||
| resp.Ref = append(resp.Ref, txHexBytes) | ||
| } | ||
| return connect.NewResponse(resp), nil | ||
| } | ||
|
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| // WaitForTx | ||
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| // ReadMempool | ||
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| // WatchMempool |