85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
package pancakeswapnft
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/pkg/errors"
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"io"
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"net/http"
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"sync"
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"time"
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)
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type Profile struct {
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Address string `json:"address"`
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Username string `json:"username"`
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Leaderboard struct {
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Global string `json:"global"`
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Team string `json:"team"`
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Volume int `json:"volume"`
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NextRank string `json:"next_rank"`
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} `json:"leaderboard"`
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LeaderboardFantoken struct {
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Global string `json:"global"`
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Team string `json:"team"`
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Volume int `json:"volume"`
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NextRank string `json:"next_rank"`
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} `json:"leaderboard_fantoken"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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func getUsernameFromAddress(address string) (string, error) {
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resp, err := http.Get(fmt.Sprintf("https://profile.pancakeswap.com/api/users/%s", address))
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if err != nil {
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return "", err
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}
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defer func(Body io.ReadCloser) {
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_ = Body.Close()
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}(resp.Body)
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raw, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", err
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}
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if resp.StatusCode != http.StatusOK {
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return "", errors.Errorf("non 200 http status : %d / raw : %s", resp.StatusCode, raw)
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}
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var profile Profile
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err = json.NewDecoder(bytes.NewReader(raw)).Decode(&profile)
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if err != nil {
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return "", err
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}
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return profile.Username, nil
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}
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type ProfileService struct {
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cache map[string]string
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lock *sync.Mutex
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}
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func NewProfileService() *ProfileService {
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return &ProfileService{
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cache: make(map[string]string),
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lock: &sync.Mutex{},
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}
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}
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func (s *ProfileService) GetUsername(address string) (string, error) {
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s.lock.Lock()
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defer s.lock.Unlock()
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if name, ok := s.cache[address]; ok {
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return name, nil
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}
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name, err := getUsernameFromAddress(address)
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if err != nil {
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return "", err
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}
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s.cache[address] = name
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return name, nil
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}
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