isBlockhashValid gRPC Method - Solana gRPC

Solana gRPC is included with Scale plans and up. Learn more on our pricing page.

參數

blockhash

字串

必填

載入中...

commitment

字串

載入中...

PROCESSED

字串

載入中...

CONFIRMED

字串

載入中...

FINALIZED

字串

載入中...

退貨

valid

布林值

載入中...

slot

字串

載入中...

請求

1
套件 主函式
2

3
匯入 (
4
	"上下文"
5
	"crypto/tls"
6
	"fmt"
7
	"log"
8
	「時間」
9

10
	pb "yellowstone/proto"
11

12

13
	"google.golang.grpc"
14
	"google.golang.grpc"
15
	"google.golang.org/grpc/encoding/gzip"
16
	"google.golang.org/grpc/keepalive"
17
)
18

19
// Quicknode endpoints consist of two crucial components: the endpoint name and the corresponding token
20
// For eg: QN Endpoint: https://docs-demo.solana-mainnet.quiknode.pro/abcde123456789
21
// endpoint will be: docs-demo.solana-mainnet.quiknode.pro:443  {443 is the port number for gRPC}
22
// token will be : abcde123456789
23

24
var (
25
	endpoint = "YOUR_QN_ENDPOINT:443"
26
	token    = "YOUR_TOKEN_NUMBER"
27
)
28

29
var kacp = keepalive.ClientParameters{
30
	Time:                10 * time.Second,
31
	Timeout:             time.Second,
32
	PermitWithoutStream: true,
33
}
34

35
type tokenAuth struct {
36
	代幣 字串
37
}
38

39
func (t tokenAuth) GetRequestMetadata(ctx context.Context, in ...string) (map[string]string, error) {
40
	返回 地圖[字串]字串{
41
		"x-token": t.token,
42
	}, nil
43
}
44

45
func (tokenAuth) RequireTransportSecurity() bool {
46
	return true
47
}
48

49
func main() {
50
	opts := []grpc.DialOption{
51
		grpc.WithTransportCredentials(憑證.NewTLS(&tls.Config{})),
52
		grpc.WithKeepaliveParams(kacp),
53
		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(1024*1024*1024), grpc.UseCompressor(gzip.Name)),
54
		grpc.WithPerRPCCredentials(tokenAuth{token: token}),
55
	}
56

57
	conn, err := grpc.NewClient(endpoint, opts...)
58
	如果 err != nil {
59
		log.Fatalf("Failed to connect: %v", err)
60
	}
61
	延後 延遲連接.關閉()
62

63
	client := pb.NewGeyserClient(conn)
64

65
    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
66
    defer cancel()
67

68
    const BLOCKHASH_TO_CHECK = "FJcV9hJycVRkyHWf3P8qjxE2vLs6dF38RTZzZBNvNM1z"
69

70
	isBlockhashValid, err := client.IsBlockhashValid(ctx, &pb.IsBlockhashValidRequest{
71
		Blockhash: BLOCKHASH_TO_CHECK,
72
	})
73
	如果 err != nil {
74
		log.Fatalf("Failed to check blockhash validity: %v", err)
75
	}
76

77

78
	fmt.Printf("Slot: %d\n", isBlockhashValid.Slot)
79
	fmt.Printf("Valid: %v\n", isBlockhashValid.Valid)
80

81

82
}
83

1
套件 主函式
2

3
匯入 (
4
	"上下文"
5
	"crypto/tls"
6
	"fmt"
7
	"log"
8
	「時間」
9

10
	pb "yellowstone/proto"
11

12

13
	"google.golang.grpc"
14
	"google.golang.grpc"
15
	"google.golang.org/grpc/encoding/gzip"
16
	"google.golang.org/grpc/keepalive"
17
)
18

19
// Quicknode endpoints consist of two crucial components: the endpoint name and the corresponding token
20
// For eg: QN Endpoint: https://docs-demo.solana-mainnet.quiknode.pro/abcde123456789
21
// endpoint will be: docs-demo.solana-mainnet.quiknode.pro:443  {443 is the port number for gRPC}
22
// token will be : abcde123456789
23

24
var (
25
	endpoint = "YOUR_QN_ENDPOINT:443"
26
	token    = "YOUR_TOKEN_NUMBER"
27
)
28

29
var kacp = keepalive.ClientParameters{
30
	Time:                10 * time.Second,
31
	Timeout:             time.Second,
32
	PermitWithoutStream: true,
33
}
34

35
type tokenAuth struct {
36
	代幣 字串
37
}
38

39
func (t tokenAuth) GetRequestMetadata(ctx context.Context, in ...string) (map[string]string, error) {
40
	返回 地圖[字串]字串{
41
		"x-token": t.token,
42
	}, nil
43
}
44

45
func (tokenAuth) RequireTransportSecurity() bool {
46
	return true
47
}
48

49
func main() {
50
	opts := []grpc.DialOption{
51
		grpc.WithTransportCredentials(憑證.NewTLS(&tls.Config{})),
52
		grpc.WithKeepaliveParams(kacp),
53
		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(1024*1024*1024), grpc.UseCompressor(gzip.Name)),
54
		grpc.WithPerRPCCredentials(tokenAuth{token: token}),
55
	}
56

57
	conn, err := grpc.NewClient(endpoint, opts...)
58
	如果 err != nil {
59
		log.Fatalf("Failed to connect: %v", err)
60
	}
61
	延後 延遲連接.關閉()
62

63
	client := pb.NewGeyserClient(conn)
64

65
    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
66
    defer cancel()
67

68
    const BLOCKHASH_TO_CHECK = "FJcV9hJycVRkyHWf3P8qjxE2vLs6dF38RTZzZBNvNM1z"
69

70
	isBlockhashValid, err := client.IsBlockhashValid(ctx, &pb.IsBlockhashValidRequest{
71
		Blockhash: BLOCKHASH_TO_CHECK,
72
	})
73
	如果 err != nil {
74
		log.Fatalf("Failed to check blockhash validity: %v", err)
75
	}
76

77

78
	fmt.Printf("Slot: %d\n", isBlockhashValid.Slot)
79
	fmt.Printf("Valid: %v\n", isBlockhashValid.Valid)
80

81

82
}
83

1
import Client, { CommitmentLevel } from "@triton-one/yellowstone-grpc";
2

3
// Quicknode endpoints consist of two crucial components: the endpoint name and the corresponding token
4
// For eg: QN Endpoint: https://docs-demo.solana-mainnet.quiknode.pro/abcde123456789
5
// endpoint will be: https://docs-demo.solana-mainnet.quiknode.pro:443  {443 is the port number for gRPC}
6
// token will be : abcde123456789
7

8
const ENDPOINT = "https://YOUR_QN_ENDPOINT:443";
9
const TOKEN = "YOUR_TOKEN_NUMBER";
10

11
const BLOCKHASH_TO_CHECK = "FJcV9hJycVRkyHWf3P8qjxE2vLs6dF38RTZzZBNvNM1z";
12

13
async 函式 main() {
14
    const client = new Client(ENDPOINT, TOKEN, {
15
        grpcDefaultCompressionAlgorithm: 0, // 0 = gzip, 1 = zstd
16
    });
17
    await client.connect();
18

19
    const commitment = CommitmentLevel.CONFIRMED;
20

21
    try {
22
        const result = await client.isBlockhashValid(BLOCKHASH_TO_CHECK, commitment);
23
        console.log(`Blockhash validity check for ${BLOCKHASH_TO_CHECK}:`);
24
        console.log(JSON.stringify(result, null, 2));
25

26
    } catch (error) {
27
        console.error("Error checking blockhash validity:", error);
28
    }
29
}
30

31
main()
32
    .catch((err) => {
33
        console.error("Unhandled error:", err);
34
        process.exit(1);
35
    });
36

1
import Client, { CommitmentLevel } from "@triton-one/yellowstone-grpc";
2

3
// Quicknode endpoints consist of two crucial components: the endpoint name and the corresponding token
4
// For eg: QN Endpoint: https://docs-demo.solana-mainnet.quiknode.pro/abcde123456789
5
// endpoint will be: https://docs-demo.solana-mainnet.quiknode.pro:443  {443 is the port number for gRPC}
6
// token will be : abcde123456789
7

8
const ENDPOINT = "https://YOUR_QN_ENDPOINT:443";
9
const TOKEN = "YOUR_TOKEN_NUMBER";
10

11
const BLOCKHASH_TO_CHECK = "FJcV9hJycVRkyHWf3P8qjxE2vLs6dF38RTZzZBNvNM1z";
12

13
async 函式 main() {
14
    const client = new Client(ENDPOINT, TOKEN, {
15
        grpcDefaultCompressionAlgorithm: 0, // 0 = gzip, 1 = zstd
16
    });
17
    await client.connect();
18

19
    const commitment = CommitmentLevel.CONFIRMED;
20

21
    try {
22
        const result = await client.isBlockhashValid(BLOCKHASH_TO_CHECK, commitment);
23
        console.log(`Blockhash validity check for ${BLOCKHASH_TO_CHECK}:`);
24
        console.log(JSON.stringify(result, null, 2));
25

26
    } catch (error) {
27
        console.error("Error checking blockhash validity:", error);
28
    }
29
}
30

31
main()
32
    .catch((err) => {
33
        console.error("Unhandled error:", err);
34
        process.exit(1);
35
    });
36

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