ExecuteScriptAtLatestBlock Access API Method

Parameters

Script

string

REQUIRED

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Arguments

string

REQUIRED

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Returns

value

string

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Request

1
package main
2

3
import (
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	"context"
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	"encoding/json"
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	"fmt"
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	"log"
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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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13

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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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	if err != nil {
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		log.Fatalf("err: %v", err)
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	}
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	// Execute Script at Latest Block
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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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	req := &access.ExecuteScriptAtLatestBlockRequest{
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		Script:    script,
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		Arguments: args,
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	}
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	valueResp, err := client.ExecuteScriptAtLatestBlock(ctx, req)
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	respJSON, err := json.Marshal(valueResp)
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	if err != nil {
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		log.Fatal("err: ", err)
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	}
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	fmt.Println("ExecuteScriptAtLatestBlock response:", string(respJSON))
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}

1
package main
2

3
import (
4
	"context"
5
	"encoding/json"
6
	"fmt"
7
	"log"
8
	"strconv"
9

10
	"github.com/onflow/flow/protobuf/go/flow/access"
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)
12

13

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func main() {
15

16
	// 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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	if err != nil {
20
		log.Fatalf("err: %v", err)
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	}
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	// Execute Script at Latest Block
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	script := []byte(`
25
		pub fun main(a: Int): Int {
26
			return a + 10
27
		}
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	`)
29

30
	// Convert integer to JSON-CDC (Cadence JSON)
31
	arg := 10
32
	// JSON-CDC representation of an integer is a JSON object with "type" and "value" fields
33
	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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	req := &access.ExecuteScriptAtLatestBlockRequest{
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		Script:    script,
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		Arguments: args,
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	}
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	valueResp, err := client.ExecuteScriptAtLatestBlock(ctx, req)
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	respJSON, err := json.Marshal(valueResp)
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	if err != nil {
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		log.Fatal("err: ", err)
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	}
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	fmt.Println("ExecuteScriptAtLatestBlock response:", string(respJSON))
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50
}

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