47 lines
970 B
Go
47 lines
970 B
Go
|
package serum
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bytes"
|
||
|
|
"context"
|
||
|
|
"fmt"
|
||
|
|
|
||
|
|
"github.com/dfuse-io/solana-go"
|
||
|
|
"github.com/dfuse-io/solana-go/rpc"
|
||
|
|
"github.com/lunixbochs/struc"
|
||
|
|
)
|
||
|
|
|
||
|
|
type SerumClient struct {
|
||
|
|
rpc.Client
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewSerumClient(endpoint string) *SerumClient {
|
||
|
|
endpoint = "http://api.mainnet-beta.solana.com:80/rpc"
|
||
|
|
return &SerumClient{
|
||
|
|
*rpc.NewClient(endpoint),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *SerumClient) FetchMarket(ctx context.Context, marketAddr solana.PublicKey) (*MarketMeta, error) {
|
||
|
|
accInfo, err := s.GetAccountInfo(ctx, marketAddr)
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("unable to get market account:%w", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
accountData, err := accInfo.Value.DataToBytes()
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("unable to retrieve account data byte: %w", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
var m MarketV2
|
||
|
|
err = struc.Unpack(bytes.NewReader(accountData), *m)
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("unable to decode market: %w", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
return &MarketMeta{
|
||
|
|
Address: marketAddr,
|
||
|
|
m: m,
|
||
|
|
}, nil
|
||
|
|
|
||
|
|
}
|