ExecuteScriptAtBlockID Access API Method

Paramètres

Script

chaîne de caractères

OBLIGATOIRE

Chargement en cours...

Arguments

chaîne de caractères

OBLIGATOIRE

Chargement en cours...

BlockId

chaîne de caractères

OBLIGATOIRE

Chargement en cours...

Retours

valeur

chaîne de caractères

Chargement en cours...

Demande

1
paquet principal
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import (
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	« contexte »
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	« fmt »
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	« journal »
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	"strconv"
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	"github.com/onflow/flow/protobuf/go/flow/access"
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)
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func main() {
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	// Requires authenticating before making the request. Refer to Intro Page on how Authentication can be done.
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	client, err := getAccessClientWithBasicAuth("ENDPOINT-NAME", "TOKEN_GOES_HERE")
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	ctx := context.Background()
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	si err != nil {
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		log.Fatalf("err: %v", err)
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	}
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	// Get Latest (sealed) block
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	latestResp, err := client.GetLatestBlock(ctx, &access.GetLatestBlockRequest{IsSealed: true})
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	si err != nil {
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		log.Fatal("Get latest block failed: ", err)
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	}
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	fmt.Println("Latest block height: ", latestResp.Block.Height)
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	// execute script at latest block ID
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	script := []byte(`
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		pub fun main(a: Int): Int {
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			return a + 10
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		}
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	`)
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	// Convert integer to JSON-CDC (Cadence JSON)
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	arg := 10
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	// JSON-CDC representation of an integer is a JSON object with "type" and "value" fields
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	jsonCDC := fmt.Sprintf(`{"type":"Int","value":"%s"}`, strconv.Itoa(arg))
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	// Create script arguments
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	args := [][]byte{[]byte(jsonCDC)}
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	valueHeightResp, err := client.ExecuteScriptAtBlockID(ctx, &access.ExecuteScriptAtBlockIDRequest{Script: script, Arguments: args, BlockId: latestResp.Block.Id})
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	si err != nil {
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		log.Fatal("execute script at block ID failed: ", err)
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	}
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	fmt.Printf("executed script , returned %s \n", string(valueHeightResp.Value))
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}

1
paquet principal
2

3
import (
4
	« contexte »
5
	« fmt »
6
	« journal »
7
	"strconv"
8

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

12

13
func main() {
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	// 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")
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	ctx := context.Background()
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	si err != nil {
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		log.Fatalf("err: %v", err)
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	}
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	// Get Latest (sealed) block
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	latestResp, err := client.GetLatestBlock(ctx, &access.GetLatestBlockRequest{IsSealed: true})
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	si err != nil {
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		log.Fatal("Get latest block failed: ", err)
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	}
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	fmt.Println("Latest block height: ", latestResp.Block.Height)
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	// execute script at latest block ID
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	script := []byte(`
30
		pub fun main(a: Int): Int {
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			return a + 10
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		}
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	`)
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	// Convert integer to JSON-CDC (Cadence JSON)
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	arg := 10
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	// JSON-CDC representation of an integer is a JSON object with "type" and "value" fields
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	jsonCDC := fmt.Sprintf(`{"type":"Int","value":"%s"}`, strconv.Itoa(arg))
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	// Create script arguments
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	args := [][]byte{[]byte(jsonCDC)}
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	valueHeightResp, err := client.ExecuteScriptAtBlockID(ctx, &access.ExecuteScriptAtBlockIDRequest{Script: script, Arguments: args, BlockId: latestResp.Block.Id})
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	si err != nil {
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		log.Fatal("execute script at block ID failed: ", err)
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	}
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	fmt.Printf("executed script , returned %s \n", string(valueHeightResp.Value))
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}

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