ExecuteScriptAtBlockID Access API Method

Parâmetros

Script

cadeia de caracteres

OBRIGATÓRIO

A carregar...

Arguments

cadeia de caracteres

OBRIGATÓRIO

A carregar...

BlockId

cadeia de caracteres

OBRIGATÓRIO

A carregar...

Devoluções

valor

cadeia de caracteres

A carregar...

Pedido

1
pacote principal
2

3
importar (
4
	"contexto"
5
	"fmt"
6
	"registo"
7
	"strconv"
8

9
	"github.com/onflow/flow/protobuf/go/flow/access"
10
)
11

12

13
func main() {
14

15
	// Requires authenticating before making the request. Refer to Intro Page on how Authentication can be done.
16
	client, err := getAccessClientWithBasicAuth("ENDPOINT-NAME", "TOKEN_GOES_HERE")
17
	ctx := context.Background()
18
	if err != nil {
19
		log.Fatalf("err: %v", err)
20
	}
21
	// Get Latest (sealed) block
22
	latestResp, err := client.GetLatestBlock(ctx, &access.GetLatestBlockRequest{IsSealed: true})
23
	if err != nil {
24
		log.Fatal("Get latest block failed: ", err)
25
	}
26
	fmt.Println("Latest block height: ", latestResp.Block.Height)
27

28
	// execute script at latest block ID
29
	script := []byte(`
30
		pub fun main(a: Int): Int {
31
			return a + 10
32
		}
33
	`)
34

35
	// Convert integer to JSON-CDC (Cadence JSON)
36
	arg := 10
37
	// JSON-CDC representation of an integer is a JSON object with "type" and "value" fields
38
	jsonCDC := fmt.Sprintf(`{"type":"Int","value":"%s"}`, strconv.Itoa(arg))
39

40
	// Create script arguments
41
	args := [][]byte{[]byte(jsonCDC)}
42

43
	valueHeightResp, err := client.ExecuteScriptAtBlockID(ctx, &access.ExecuteScriptAtBlockIDRequest{Script: script, Arguments: args, BlockId: latestResp.Block.Id})
44
	if err != nil {
45
		log.Fatal("execute script at block ID failed: ", err)
46
	}
47
	fmt.Printf("executed script , returned %s \n", string(valueHeightResp.Value))
48

49
}

1
pacote principal
2

3
importar (
4
	"contexto"
5
	"fmt"
6
	"registo"
7
	"strconv"
8

9
	"github.com/onflow/flow/protobuf/go/flow/access"
10
)
11

12

13
func main() {
14

15
	// Requires authenticating before making the request. Refer to Intro Page on how Authentication can be done.
16
	client, err := getAccessClientWithBasicAuth("ENDPOINT-NAME", "TOKEN_GOES_HERE")
17
	ctx := context.Background()
18
	if err != nil {
19
		log.Fatalf("err: %v", err)
20
	}
21
	// Get Latest (sealed) block
22
	latestResp, err := client.GetLatestBlock(ctx, &access.GetLatestBlockRequest{IsSealed: true})
23
	if err != nil {
24
		log.Fatal("Get latest block failed: ", err)
25
	}
26
	fmt.Println("Latest block height: ", latestResp.Block.Height)
27

28
	// execute script at latest block ID
29
	script := []byte(`
30
		pub fun main(a: Int): Int {
31
			return a + 10
32
		}
33
	`)
34

35
	// Convert integer to JSON-CDC (Cadence JSON)
36
	arg := 10
37
	// JSON-CDC representation of an integer is a JSON object with "type" and "value" fields
38
	jsonCDC := fmt.Sprintf(`{"type":"Int","value":"%s"}`, strconv.Itoa(arg))
39

40
	// Create script arguments
41
	args := [][]byte{[]byte(jsonCDC)}
42

43
	valueHeightResp, err := client.ExecuteScriptAtBlockID(ctx, &access.ExecuteScriptAtBlockIDRequest{Script: script, Arguments: args, BlockId: latestResp.Block.Id})
44
	if err != nil {
45
		log.Fatal("execute script at block ID failed: ", err)
46
	}
47
	fmt.Printf("executed script , returned %s \n", string(valueHeightResp.Value))
48

49
}

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