ListNodes gRPC Method

Parameters

This method does not accept any parameters

Returns

nodes

array

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address

object

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host

string

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port

integer

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error

object

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Request

package main

import (
	"context"
	"crypto/tls"
    "encoding/json"
	"fmt"

	"github.com/fbsobreira/gotron-sdk/pkg/client"
	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials"
)


// QuickNode endpoints consist of two crucial components: the endpoint name and the corresponding token
// For eg: QN Endpoint: https://docs-demo.tron-mainnet.quiknode.pro/abcde123456789
// endpoint will be: docs-demo.tron-mainnet.quiknode.pro:50051  {50051 is the port number for Tron gRPC}
// token will be : abcde123456789

var token = "YOUR_TOKEN"
var endpoint = "YOUR_ENDPOINT:50051"


type auth struct {
	token string
}

func (a *auth) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
	return map[string]string{
		"x-token": a.token,
	}, nil
}

func (a *auth) RequireTransportSecurity() bool {
	return false
}

func main() {
	opts := []grpc.DialOption{
		grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})),
		grpc.WithPerRPCCredentials(&auth{token}),
	}
	conn := client.NewGrpcClient(endpoint)
	if err := conn.Start(opts...); err != nil {
		panic(err)
	}

	fmt.Println("Listing network nodes:")
	nodes, err := conn.ListNodes()
	if err != nil {
		fmt.Printf("Error listing nodes: %v\n", err)
		return
	}

	nodeJSON, err := json.MarshalIndent(nodes, "", "  ")
	if err != nil {
		fmt.Printf("Error marshaling to JSON: %v\n", err)
		return
	}

	fmt.Println(string(nodeJSON))

}

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