EstimateEnergy gRPC Method

参数

来自

字符串

必填

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contractAddress

字符串

必填

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method

字符串

必填

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jsonString

字符串

必填

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tAmount

整数

必填

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tTokenID

字符串

必填

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tTokenAmount

整数

必填

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退货

结果

对象

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结果

布尔型

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代码

字符串

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消息

字符串

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energy_required

整数

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请求

1
包 main
2

3
导入 (
4
   "上下文"
5
   "crypto/tls"
6
   "encoding/json"
7
   "fmt"
8
   "github.com/fbsobreira/gotron-sdk/pkg/client"
9
   "google.golang.org/grpc"
10
   "google.golang.org/grpc/credentials"
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)
12

13
// Quicknode endpoints consist of two crucial components: the endpoint name and the corresponding token
14
// For eg: QN Endpoint: https://docs-demo.tron-mainnet.quiknode.pro/abcde123456789
15
// endpoint will be: docs-demo.tron-mainnet.quiknode.pro:50051  {50051 is the port number for Tron gRPC}
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// token will be : abcde123456789
17

18
var token = "YOUR_TOKEN"
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var 端点 = "YOUR_ENDPOINT:50051"
20

21
类型 auth 结构体 {
22
   token string
23
}
24

25
func (a *auth) GetRequestMetadata(ctx 上下文.上下文, uri ...字符串) (map[字符串]字符串, error) {
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   return map[string]string{
27
      "x-token": a.token,
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   }, nil
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}
30

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func (a *auth) RequireTransportSecurity() bool {
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   return false
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}
34

35
func main() {
36

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   opts := []grpc.DialOption{
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      grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})),
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      grpc.WithPerRPCCredentials(&auth{token}),
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   }
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   conn := client.NewGrpcClient(endpoint)
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   if err := conn.Start(opts...); err != nil {
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      panic(err)
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   }
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   defer conn.Conn.Close()
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   from := "TTGhREx2pDSxFX555NWz1YwGpiBVPvQA7e"
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   contractAddress := "TVSvjZdyDSNocHm7dP3jvCmMNsCnMTPa5W"
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   method := "transfer(address,uint256)"
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   jsonString := `[{"address": "TE4c73WubeWPhSF1nAovQDmQytjcaLZyY9"},{"uint256": "100"}]`
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   tAmount := int64(0)
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   tTokenID := ""
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   tTokenAmount := int64(0)
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   fmt.Println("Estimating energy for contract call...")
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   energy, err := conn.EstimateEnergy(
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      from,            // Caller's address
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      contractAddress, // Contract address
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      method,          // Function selector
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      jsonString,      // Parameters in JSON format
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      tAmount,         // TRX value to send
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      tTokenID,        // Token ID (if applicable)
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      tTokenAmount,    // Token value (if applicable)
65
   )
66
   
67
   if err != nil {
68
      fmt.Printf("Error estimating energy: %v\n", err)
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      返回
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   }
71
   
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   fmt.Println("Energy estimation successful! Results:")
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   jsonData, _ := json.MarshalIndent(energy, "", "  ")
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   fmt.Println(string(jsonData))
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   if !energy.Result.Result {
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      fmt.Println("Energy estimation failed!")
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      if len(energy.Result.Message) > 0 {
79
         fmt.Printf("Error message: %s\n", energy.Result.Message)
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      }
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      返回
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   }
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   energyRequired := energy.EnergyRequired
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   energyBuffer := energyRequired / 5 // Add 20% buffer
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   recommendedFeeLimit := (energyRequired + energyBuffer) * 420
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   fmt.Printf("\nEstimated energy required: %d\n", energyRequired)
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   fmt.Printf("Recommended fee limit (with 20%% buffer): %d SUN\n", recommendedFeeLimit)
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   fmt.Println("\nYou can use this fee limit when making the actual transaction.")
91
}

1
包 main
2

3
导入 (
4
   "上下文"
5
   "crypto/tls"
6
   "encoding/json"
7
   "fmt"
8
   "github.com/fbsobreira/gotron-sdk/pkg/client"
9
   "google.golang.org/grpc"
10
   "google.golang.org/grpc/credentials"
11
)
12

13
// Quicknode endpoints consist of two crucial components: the endpoint name and the corresponding token
14
// For eg: QN Endpoint: https://docs-demo.tron-mainnet.quiknode.pro/abcde123456789
15
// endpoint will be: docs-demo.tron-mainnet.quiknode.pro:50051  {50051 is the port number for Tron gRPC}
16
// token will be : abcde123456789
17

18
var token = "YOUR_TOKEN"
19
var 端点 = "YOUR_ENDPOINT:50051"
20

21
类型 auth 结构体 {
22
   token string
23
}
24

25
func (a *auth) GetRequestMetadata(ctx 上下文.上下文, uri ...字符串) (map[字符串]字符串, error) {
26
   return map[string]string{
27
      "x-token": a.token,
28
   }, nil
29
}
30

31
func (a *auth) RequireTransportSecurity() bool {
32
   return false
33
}
34

35
func main() {
36

37
   opts := []grpc.DialOption{
38
      grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})),
39
      grpc.WithPerRPCCredentials(&auth{token}),
40
   }
41
   conn := client.NewGrpcClient(endpoint)
42
   if err := conn.Start(opts...); err != nil {
43
      panic(err)
44
   }
45
   defer conn.Conn.Close()
46

47
   from := "TTGhREx2pDSxFX555NWz1YwGpiBVPvQA7e"
48
   contractAddress := "TVSvjZdyDSNocHm7dP3jvCmMNsCnMTPa5W"
49
   method := "transfer(address,uint256)"
50
   jsonString := `[{"address": "TE4c73WubeWPhSF1nAovQDmQytjcaLZyY9"},{"uint256": "100"}]`
51
   tAmount := int64(0)
52
   tTokenID := ""
53
   tTokenAmount := int64(0)
54

55
   fmt.Println("Estimating energy for contract call...")
56
   
57
   energy, err := conn.EstimateEnergy(
58
      from,            // Caller's address
59
      contractAddress, // Contract address
60
      method,          // Function selector
61
      jsonString,      // Parameters in JSON format
62
      tAmount,         // TRX value to send
63
      tTokenID,        // Token ID (if applicable)
64
      tTokenAmount,    // Token value (if applicable)
65
   )
66
   
67
   if err != nil {
68
      fmt.Printf("Error estimating energy: %v\n", err)
69
      返回
70
   }
71
   
72
   fmt.Println("Energy estimation successful! Results:")
73
   jsonData, _ := json.MarshalIndent(energy, "", "  ")
74
   fmt.Println(string(jsonData))
75
   
76
   if !energy.Result.Result {
77
      fmt.Println("Energy estimation failed!")
78
      if len(energy.Result.Message) > 0 {
79
         fmt.Printf("Error message: %s\n", energy.Result.Message)
80
      }
81
      返回
82
   }
83
   
84
   energyRequired := energy.EnergyRequired
85
   energyBuffer := energyRequired / 5 // Add 20% buffer
86
   recommendedFeeLimit := (energyRequired + energyBuffer) * 420
87
   
88
   fmt.Printf("\nEstimated energy required: %d\n", energyRequired)
89
   fmt.Printf("Recommended fee limit (with 20%% buffer): %d SUN\n", recommendedFeeLimit)
90
   fmt.Println("\nYou can use this fee limit when making the actual transaction.")
91
}

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