/
grpc.go
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/
grpc.go
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package grpc
import (
"context"
"encoding/json"
"strconv"
"google.golang.org/grpc"
"github.com/gridfoundation/furyint/da"
"github.com/gridfoundation/furyint/log"
"github.com/gridfoundation/furyint/store"
"github.com/gridfoundation/furyint/types"
"github.com/gridfoundation/furyint/types/pb/dalc"
)
// DataAvailabilityLayerClient is a generic client that proxies all DA requests via gRPC.
type DataAvailabilityLayerClient struct {
config Config
conn *grpc.ClientConn
client dalc.DALCServiceClient
logger log.Logger
}
// Config contains configuration options for DataAvailabilityLayerClient.
type Config struct {
// TODO(tzdybal): add more options!
Host string `json:"host"`
Port int `json:"port"`
}
// DefaultConfig defines default values for DataAvailabilityLayerClient configuration.
var DefaultConfig = Config{
Host: "127.0.0.1",
Port: 7980,
}
var _ da.DataAvailabilityLayerClient = &DataAvailabilityLayerClient{}
var _ da.BatchRetriever = &DataAvailabilityLayerClient{}
// Init sets the configuration options.
func (d *DataAvailabilityLayerClient) Init(config []byte, _ store.KVStore, logger log.Logger) error {
d.logger = logger
if len(config) == 0 {
d.config = DefaultConfig
return nil
}
return json.Unmarshal(config, &d.config)
}
// Start creates connection to gRPC server and instantiates gRPC client.
func (d *DataAvailabilityLayerClient) Start() error {
d.logger.Info("starting GRPC DALC", "host", d.config.Host, "port", d.config.Port)
var err error
var opts []grpc.DialOption
// TODO(tzdybal): add more options
opts = append(opts, grpc.WithInsecure())
d.conn, err = grpc.Dial(d.config.Host+":"+strconv.Itoa(d.config.Port), opts...)
if err != nil {
return err
}
d.client = dalc.NewDALCServiceClient(d.conn)
return nil
}
// Stop closes connection to gRPC server.
func (d *DataAvailabilityLayerClient) Stop() error {
d.logger.Info("stopoing GRPC DALC")
return d.conn.Close()
}
// GetClientType returns client type.
func (d *DataAvailabilityLayerClient) GetClientType() da.Client {
return da.Celestia
}
// SubmitBatch proxies SubmitBatch request to gRPC server.
func (d *DataAvailabilityLayerClient) SubmitBatch(batch *types.Batch) da.ResultSubmitBatch {
resp, err := d.client.SubmitBatch(context.TODO(), &dalc.SubmitBatchRequest{Batch: batch.ToProto()})
if err != nil {
return da.ResultSubmitBatch{
BaseResult: da.BaseResult{Code: da.StatusError, Message: err.Error()},
}
}
return da.ResultSubmitBatch{
BaseResult: da.BaseResult{
Code: da.StatusCode(resp.Result.Code),
Message: resp.Result.Message,
DAHeight: resp.Result.DataLayerHeight,
},
}
}
// CheckBatchAvailability proxies CheckBatchAvailability request to gRPC server.
func (d *DataAvailabilityLayerClient) CheckBatchAvailability(dataLayerHeight uint64) da.ResultCheckBatch {
resp, err := d.client.CheckBatchAvailability(context.TODO(), &dalc.CheckBatchAvailabilityRequest{DataLayerHeight: dataLayerHeight})
if err != nil {
return da.ResultCheckBatch{BaseResult: da.BaseResult{Code: da.StatusError, Message: err.Error()}}
}
return da.ResultCheckBatch{
BaseResult: da.BaseResult{Code: da.StatusCode(resp.Result.Code), Message: resp.Result.Message},
DataAvailable: resp.DataAvailable,
}
}
// RetrieveBatches proxies RetrieveBlocks request to gRPC server.
func (d *DataAvailabilityLayerClient) RetrieveBatches(dataLayerHeight uint64) da.ResultRetrieveBatch {
resp, err := d.client.RetrieveBatches(context.TODO(), &dalc.RetrieveBatchesRequest{DataLayerHeight: dataLayerHeight})
if err != nil {
return da.ResultRetrieveBatch{BaseResult: da.BaseResult{Code: da.StatusError, Message: err.Error()}}
}
batches := make([]*types.Batch, len(resp.Batches))
for i, batch := range resp.Batches {
var b types.Batch
err = b.FromProto(batch)
if err != nil {
return da.ResultRetrieveBatch{BaseResult: da.BaseResult{Code: da.StatusError, Message: err.Error()}}
}
batches[i] = &b
}
return da.ResultRetrieveBatch{
BaseResult: da.BaseResult{
Code: da.StatusCode(resp.Result.Code),
Message: resp.Result.Message,
DAHeight: dataLayerHeight,
},
Batches: batches,
}
}