Parameters

Height

integer

REQUIRED

The height of the block

Returns

block

object

The details of the block

id

string

The unique identifier of the block

parent_id

string

The ID of the parent block

height

integer

The height of the block within the blockchain

timestamp

object

An object containing the details of the timestamp associated with the block

seconds

integer

An integer representing the number of seconds since a specific reference point

nanos

integer

An integer representing the additional nanoseconds that complement the seconds value

payload_hash

string

The hash of the block's payload

view

integer

The view number associated with the block

parent_voter_ids

string

A list of voter IDs associated with the parent block

parent_voter_sig_data

string

The signature data associated with the parent voter IDs

proposer_id

string

The ID of the block's proposer

proposer_sig_data

string

The signature data associated with the block's proposer

chain_id

string

The ID of the blockchain

parent_voter_indices

string

The indices of the parent block's voters

Request

1
package main
2

3
import (
4
	"context"
5
	"fmt"
6
	"log"
7

8
	"github.com/onflow/flow/protobuf/go/flow/access"
9
)
10

11
func main() {
12

13
	// Requires authenticating before making the request. Refer to Intro Page on how Authentication can be done.
14
	client, err := getAccessClientWithBasicAuth("ENDPOINT-NAME", "TOKEN_GOES_HERE")
15
	ctx := context.Background()
16
	if err != nil {
17
		log.Fatalf("err: %v", err)
18
	}
19

20
	// Get Block Header by height
21
	headerResp, err := client.GetBlockHeaderByHeight(ctx, &access.GetBlockHeaderByHeightRequest{Height: 54702736})
22
	if err != nil {
23
		log.Fatal("Get Block Header by height failed: ", err)
24
	}
25
	fmt.Printf("latest block header ID: %x \n", headerResp.Block.Id)
26

27
}

1
package main
2

3
import (
4
	"context"
5
	"fmt"
6
	"log"
7

8
	"github.com/onflow/flow/protobuf/go/flow/access"
9
)
10

11
func main() {
12

13
	// Requires authenticating before making the request. Refer to Intro Page on how Authentication can be done.
14
	client, err := getAccessClientWithBasicAuth("ENDPOINT-NAME", "TOKEN_GOES_HERE")
15
	ctx := context.Background()
16
	if err != nil {
17
		log.Fatalf("err: %v", err)
18
	}
19

20
	// Get Block Header by height
21
	headerResp, err := client.GetBlockHeaderByHeight(ctx, &access.GetBlockHeaderByHeightRequest{Height: 54702736})
22
	if err != nil {
23
		log.Fatal("Get Block Header by height failed: ", err)
24
	}
25
	fmt.Printf("latest block header ID: %x \n", headerResp.Block.Id)
26

27
}

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