在Go语言中查找一个地址的BTC余额。

huangapple
go评论119阅读模式
英文:

Find BTC balance for an address in Go

问题

我需要纠正和改造一个函数，用于检查两个比特币地址的余额，比如（addr 和 addr1），并返回 JSON 值。我需要说明一下，我对 Golang 不是很了解，需要帮助！

  1. func balance(addr) {
  2.     var url = "https://bitcoin.toshi.io/api/v0/addresses/" + addr
  3.     response, _ := http.Get(url)
  4.     defer response.Body.Close()
  5.     contents, _ := ioutil.ReadAll(response.Body)
  6.     return contents
  7. }

编辑：

我需要一个函数来获取两个比特币地址的余额，或者使用这些库 btcwallet。

  1. func GetAddressBalance(icmd btcjson.Cmd) (interface{}, *btcjson.Error) 
  2. func GetAddressesByAccount(icmd btcjson.Cmd) (interface{}, *btcjson.Error) 
  3. func GetBalance(icmd btcjson.Cmd) (interface{}, *btcjson.Error)
英文:

I need to correct and transform a function, to checking 2 addresses of btc balance, like (addr and addr1 ), and the return is json value, i need to specify im not know very well golang.. need help!

  1. func balance(addr) {
  2. 	var url = "https://bitcoin.toshi.io/api/v0/addresses/" + addr
  3. 	response, _ := http.Get(url)
  4. 	defer response.Body.Close()
  5. 	contents, _ := ioutil.ReadAll(response.Body)
  6. 	return contents
  7. }

EDIT:

i need a function to get balances of 2 btc addresses, or to use this libraries btcwallet.

  1. func GetAddressBalance(icmd btcjson.Cmd) (interface{}, *btcjson.Error) 
  2. func GetAddressesByAccount(icmd btcjson.Cmd) (interface{}, *btcjson.Error) 
  3. func GetBalance(icmd btcjson.Cmd) (interface{}, *btcjson.Error)

答案1

得分: 0

你走在正确的道路上。API返回一个JSON。可以将其解组为一个结构体（Address）。这样你就可以访问API返回的所有内容。不要忘记始终检查错误代码！将some_address替换为实际的地址以获取余额。

  1. package main
  3. import (
  4. 	"encoding/json"
  5. 	"fmt"
  6. 	"net/http"
  7. )
  9. func main() {
  10. 	a, err := getAddress("some_address")
  11. 	if err != nil {
  12. 		fmt.Println(err)
  13. 		return
  14. 	}
  15. 	fmt.Println("Balance:", a.Balance)
  16. }
  18. type Address struct {
  19. 	Hash                string
  20. 	Balance             int
  21. 	Received            int
  22. 	Send                int
  23. 	UnconfirmedBalance  int `json:"unconfirmed_balance"`
  24. 	UnconfirmedReceived int `json:"unconfirmed_received"`
  25. 	UnconfirmedSent     int `json:"unconfirmed_sent"`
  26. }
  28. func getAddress(addr string) (*Address, error) {
  29. 	resp, err := http.Get("https://bitcoin.toshi.io/api/v0/addresses/" + addr)
  30. 	if err != nil {
  31. 		return nil, err
  32. 	}
  33. 	defer resp.Body.Close()
  35. 	if resp.StatusCode != http.StatusOK {
  36. 		return nil, fmt.Errorf("Error: %v", http.StatusText(resp.StatusCode))
  37. 	}
  39. 	var address Address
  40. 	decoder := json.NewDecoder(resp.Body)
  41. 	if err := decoder.Decode(&address); err != nil {
  42. 		return nil, err
  43. 	}
  45. 	return &address, nil
  46. }
英文:

You were on the right track. The api returns a json. This can be unmarshalled into a struct (Address). That way you can access everything returned by the api. Do not forget to always check for error codes! Replace some_address with an actual address to get the balance.

  1. package main
  3. import (
  4. 	"encoding/json"
  5. 	"fmt"
  6. 	"net/http"
  7. )
  9. func main() {
  10. 	a, err := getAddress("some_address")
  11. 	if err != nil {
  12. 		fmt.Println(err)
  13. 		return
  14. 	}
  15. 	fmt.Println("Balance:", a.Balance)
  16. }
  18. type Address struct {
  19. 	Hash                string
  20. 	Balance             int
  21. 	Received            int
  22. 	Send                int
  23. 	UnconfirmedBalance  int `json:"unconfirmed_balance"`
  24. 	UnconfirmedReceived int `json:"unconfirmed_received"`
  25. 	UnconfirmedSent     int `json:"unconfirmed_sent"`
  26. }
  28. func getAddress(addr string) (*Address, error) {
  29. 	resp, err := http.Get("https://bitcoin.toshi.io/api/v0/addresses/" + addr)
  30. 	if err != nil {
  31. 		return nil, err
  32. 	}
  33. 	defer resp.Body.Close()
  35. 	if resp.StatusCode != http.StatusOK {
  36. 		return nil, fmt.Errorf("Error: %v", http.StatusText(resp.StatusCode))
  37. 	}
  39. 	var address Address
  40. 	decoder := json.NewDecoder(resp.Body)
  41. 	if err := decoder.Decode(&address); err != nil {
  42. 		return nil, err
  43. 	}
  45. 	return &address, nil
  46. }

huangapple
  • 本文由 发表于 2016年2月22日 18:48:15
  • 转载请务必保留本文链接：https://go.coder-hub.com/35551634.html
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