getLatestBlockhash gRPC Method - Solana gRPC

Solana gRPC is included with Scale and Business plans. On Build and Accelerate plans, it remains available via the Solana gRPC add-on.

पैरामीटर

यह विधि किसी भी पैरामीटर को स्वीकार नहीं करती है।

रिटर्न

slot

डोरी

लोड हो रहा है...

blockhash

डोरी

लोड हो रहा है...

lastValidBlockHeight

डोरी

लोड हो रहा है...

अनुरोध

1
package main
2

3
import (
4
	"context"
5
	"crypto/tls"
6
	"fmt"
7
	"log"
8
	"time"
9

10
	pb "yellowstone/proto"
11

12

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	"google.golang.org/grpc"
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	"google.golang.org/grpc/credentials"
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	"google.golang.org/grpc/encoding/gzip"
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	"google.golang.org/grpc/keepalive"
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)
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:10000  {10000 is the port number for gRPC}
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// token will be : abcde123456789
23

24
var (
25
	endpoint = "YOUR_QN_ENDPOINT:10000"
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	token    = "YOUR_TOKEN_NUMBER"
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)
28

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func main() {
30
	opts := []grpc.DialOption{
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		grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})),
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		grpc.WithKeepaliveParams(kacp),
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		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(1024*1024*1024), grpc.UseCompressor(gzip.Name)),
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		grpc.WithPerRPCCredentials(tokenAuth{token: token}),
35
	}
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	conn, err := grpc.NewClient(endpoint, opts...)
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	if err != nil {
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		log.Fatalf("Failed to connect: %v", err)
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	}
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	defer conn.Close()
42

43
	client := pb.NewGeyserClient(conn)
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    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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    defer cancel()
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    latestBlockHash, err := client.GetLatestBlockhash(ctx, &pb.GetLatestBlockhashRequest{})
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	if err != nil {
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		log.Fatalf("Failed to get latest blockhash: %v", err)
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	}
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	fmt.Printf("Latest Blockhash Information:\n")
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	fmt.Printf("  Blockhash: %+v\n", latestBlockHash)
55

56
}

1
package main
2

3
import (
4
	"context"
5
	"crypto/tls"
6
	"fmt"
7
	"log"
8
	"time"
9

10
	pb "yellowstone/proto"
11

12

13
	"google.golang.org/grpc"
14
	"google.golang.org/grpc/credentials"
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:10000  {10000 is the port number for gRPC}
22
// token will be : abcde123456789
23

24
var (
25
	endpoint = "YOUR_QN_ENDPOINT:10000"
26
	token    = "YOUR_TOKEN_NUMBER"
27
)
28

29
func main() {
30
	opts := []grpc.DialOption{
31
		grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})),
32
		grpc.WithKeepaliveParams(kacp),
33
		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(1024*1024*1024), grpc.UseCompressor(gzip.Name)),
34
		grpc.WithPerRPCCredentials(tokenAuth{token: token}),
35
	}
36

37
	conn, err := grpc.NewClient(endpoint, opts...)
38
	if err != nil {
39
		log.Fatalf("Failed to connect: %v", err)
40
	}
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	defer conn.Close()
42

43
	client := pb.NewGeyserClient(conn)
44

45
    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
46
    defer cancel()
47

48
    latestBlockHash, err := client.GetLatestBlockhash(ctx, &pb.GetLatestBlockhashRequest{})
49
	if err != nil {
50
		log.Fatalf("Failed to get latest blockhash: %v", err)
51
	}
52

53
	fmt.Printf("Latest Blockhash Information:\n")
54
	fmt.Printf("  Blockhash: %+v\n", latestBlockHash)
55

56
}

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: docs-demo.solana-mainnet.quiknode.pro:10000  {10000 is the port number for gRPC}
6
// token will be : abcde123456789
7

8
const ENDPOINT = "YOUR_QN_ENDPOINT:10000";
9
const TOKEN = "YOUR_TOKEN_NUMBER";
10

11
अतुल्यकालिक समारोह मुख्य ( ) {
12
    const client = new Client(ENDPOINT, TOKEN, {});
13

14
    const commitment = CommitmentLevel.CONFIRMED;
15

16
    try {
17
        const response = await client.getLatestBlockhash(commitment);
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        console.log(`Latest Blockhash: ${JSON.stringify(response, null, 2)}`);
19
    } catch (error) {
20
        console.error("Error fetching latest blockhash:", error);
21
    }
22
}
23

24
main()
25
    .catch((err) => {
26
        console.error("Unhandled error:", err);
27
        process.exit(1);
28
    });

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: docs-demo.solana-mainnet.quiknode.pro:10000  {10000 is the port number for gRPC}
6
// token will be : abcde123456789
7

8
const ENDPOINT = "YOUR_QN_ENDPOINT:10000";
9
const TOKEN = "YOUR_TOKEN_NUMBER";
10

11
अतुल्यकालिक समारोह मुख्य ( ) {
12
    const client = new Client(ENDPOINT, TOKEN, {});
13

14
    const commitment = CommitmentLevel.CONFIRMED;
15

16
    try {
17
        const response = await client.getLatestBlockhash(commitment);
18
        console.log(`Latest Blockhash: ${JSON.stringify(response, null, 2)}`);
19
    } catch (error) {
20
        console.error("Error fetching latest blockhash:", error);
21
    }
22
}
23

24
main()
25
    .catch((err) => {
26
        console.error("Unhandled error:", err);
27
        process.exit(1);
28
    });

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