EstimateEnergy gRPC Method

參數

來自

字串

必填

載入中...

contractAddress

字串

必填

載入中...

method

字串

必填

載入中...

jsonString

字串

必填

載入中...

tAmount

整數

必填

載入中...

tTokenID

字串

必填

載入中...

tTokenAmount

整數

必填

載入中...

退貨

結果

物件

載入中...

結果

布林值

載入中...

程式碼

字串

載入中...

訊息

字串

載入中...

energy_required

整數

載入中...

請求

1
package main
2

3
import (
4
   "context"
5
   "crypto/tls"
6
   "encoding/json"
7
   "fmt"
8
   "github.com/fbsobreira/gotron-sdk/pkg/client"
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   "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}
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// token will be : abcde123456789
17

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

21
type auth struct {
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   token string
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}
24

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func (a *auth) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
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   return map[string]string{
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      "x-token": a.token,
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   }, nil
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}
30

31
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()
46

47
   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)
54

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   fmt.Println("Estimating energy for contract call...")
56
   
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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
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)
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      return
70
   }
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))
75
   
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   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
      }
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      return
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   }
83
   
84
   energyRequired := energy.EnergyRequired
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   energyBuffer := energyRequired / 5 // Add 20% buffer
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   recommendedFeeLimit := (energyRequired + energyBuffer) * 420
87
   
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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)
90
   fmt.Println("\nYou can use this fee limit when making the actual transaction.")
91
}

1
package main
2

3
import (
4
   "context"
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 endpoint = "YOUR_ENDPOINT:50051"
20

21
type auth struct {
22
   token string
23
}
24

25
func (a *auth) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, 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
      return
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
      return
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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