adding username translation

nft.go

@@ -26,14 +26,15 @@ type AskOrder struct {
 }
 
 type Nft struct {
-	Id                     string        `json:"id"`
+	Id                     string     `json:"id"`
-	TokenID                int64         `json:"tokenId,string"`
+	TokenID                int64      `json:"tokenId,string"`
-	OtherId                int64         `json:"otherId,string"`
+	OtherId                int64      `json:"otherId,string"`
-	Collection             Collection    `json:"collection"`
+	Collection             Collection `json:"collection"`
-	MetadataUrl            string        `json:"metadataUrl"`
+	MetadataUrl            string     `json:"metadataUrl"`
-	UpdatedAt              int64         `json:"updatedAt,string"`
+	UpdatedAt              int64      `json:"updatedAt,string"`
-	CurrentAskPrice        float64       `json:"currentAskPrice,string"`
+	CurrentAskPrice        float64    `json:"currentAskPrice,string"`
-	CurrentSeller          string        `json:"currentSeller"`
+	CurrentSeller          string     `json:"currentSeller"`
+	CurrentSellerUsername  string
 	LatestTradedPriceInBNB float64       `json:"latestTradedPriceInBNB,string"`
 	TradeVolumeBNB         float64       `json:"tradeVolumeBNB,string"`
 	TotalTrades            int64         `json:"totalTrades,string"`
@@ -51,10 +52,11 @@ type Nft struct {
 }
 
 type MarketService struct {
-	collection   string
+	collection     string
-	graphClient  *graphql.Client
+	graphClient    *graphql.Client
-	squadservice *SquadService
+	squadservice   *SquadService
-	floorService *FloorService
+	floorService   *FloorService
+	profileService *ProfileService
 
 	bscaddress string
 
@@ -63,12 +65,13 @@ type MarketService struct {
 	nftslock *sync.RWMutex
 }
 
-func NewMarketService(collection string, graphClient *graphql.Client, squadservice *SquadService, floorService *FloorService, bscadress string) *MarketService {
+func NewMarketService(collection string, graphClient *graphql.Client, squadservice *SquadService, floorService *FloorService, profileService *ProfileService, bscadress string) *MarketService {
 	return &MarketService{
-		collection:   collection,
+		collection:     collection,
-		graphClient:  graphClient,
+		graphClient:    graphClient,
-		squadservice: squadservice,
+		squadservice:   squadservice,
-		floorService: floorService,
+		floorService:   floorService,
+		profileService: profileService,
 
 		bscaddress: bscadress,
 
@@ -205,6 +208,12 @@ func (s *MarketService) GetNft(ctx context.Context, collection string, tokenId i
 	res.IsVeryRecent = time.Unix(res.UpdatedAt, 0).After(time.Now().Add(-5 * time.Minute))
 	res.IsNotMine = res.CurrentSeller != s.bscaddress
 
+	if n, err := s.profileService.GetUsername(res.CurrentSeller); err != nil {
+		res.CurrentSellerUsername = res.CurrentSeller
+	} else {
+		res.CurrentSellerUsername = n
+	}
+
 	return res, nil
 }
 
@@ -265,6 +274,11 @@ func (s *MarketService) getPage(ctx context.Context, collection string, pagenum
 			floor = nft.CurrentAskPrice
 		}
 		nft.IsNotMine = nft.CurrentSeller != s.bscaddress
+		if n, err := s.profileService.GetUsername(nft.CurrentSeller); err != nil {
+			nft.CurrentSellerUsername = nft.CurrentSeller
+		} else {
+			nft.CurrentSellerUsername = n
+		}
 		res = append(res, nft)
 	}
 

profile.go

@@ -0,0 +1,84 @@
+package pancakeswapnft
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"github.com/pkg/errors"
+	"io"
+	"net/http"
+	"sync"
+	"time"
+)
+
+type Profile struct {
+	Address     string `json:"address"`
+	Username    string `json:"username"`
+	Leaderboard struct {
+		Global   string `json:"global"`
+		Team     string `json:"team"`
+		Volume   int    `json:"volume"`
+		NextRank string `json:"next_rank"`
+	} `json:"leaderboard"`
+	LeaderboardFantoken struct {
+		Global   string `json:"global"`
+		Team     string `json:"team"`
+		Volume   int    `json:"volume"`
+		NextRank string `json:"next_rank"`
+	} `json:"leaderboard_fantoken"`
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+func getUsernameFromAddress(address string) (string, error) {
+	resp, err := http.Get(fmt.Sprintf("https://profile.pancakeswap.com/api/users/%s", address))
+	if err != nil {
+		return "", err
+	}
+	defer func(Body io.ReadCloser) {
+		_ = Body.Close()
+	}(resp.Body)
+
+	raw, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+	if resp.StatusCode != http.StatusOK {
+		return "", errors.Errorf("non 200 http status : %d / raw : %s", resp.StatusCode, raw)
+	}
+	var profile Profile
+	err = json.NewDecoder(bytes.NewReader(raw)).Decode(&profile)
+	if err != nil {
+		return "", err
+	}
+
+	return profile.Username, nil
+}
+
+type ProfileService struct {
+	cache map[string]string
+	lock  *sync.Mutex
+}
+
+func NewProfileService() *ProfileService {
+	return &ProfileService{
+		cache: make(map[string]string),
+		lock:  &sync.Mutex{},
+	}
+}
+
+func (s *ProfileService) GetUsername(address string) (string, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	if name, ok := s.cache[address]; ok {
+		return name, nil
+	}
+
+	name, err := getUsernameFromAddress(address)
+	if err != nil {
+		return "", err
+	}
+	s.cache[address] = name
+
+	return name, nil
+}

transaction.go

@@ -22,8 +22,10 @@ type Transaction struct {
 	AskPrice        float64    `json:"askPrice,string"`
 	NetPrice        float64    `json:"netPrice,string"`
 	Buyer           User       `json:"buyer"`
-	Seller          User       `json:"seller"`
+	BuyerUsername   string
-	WithBNB         bool       `json:"withBNB"`
+	Seller          User `json:"seller"`
+	SellerUsername  string
+	WithBNB         bool `json:"withBNB"`
 	Time            time.Time
 	Squad           Squad
 	Score           float64
@@ -33,19 +35,21 @@ type Transaction struct {
 }
 
 type TransactionService struct {
-	graphClient  *graphql.Client
+	graphClient    *graphql.Client
-	squadservice *SquadService
+	squadservice   *SquadService
-	floorService *FloorService
+	floorService   *FloorService
+	profileService *ProfileService
 
 	bscaddress string
 }
 
-func NewTransactionService(graphClient *graphql.Client, squadservice *SquadService, floorService *FloorService, bscaddress string) *TransactionService {
+func NewTransactionService(graphClient *graphql.Client, squadservice *SquadService, floorService *FloorService, profileService *ProfileService, bscaddress string) *TransactionService {
 	return &TransactionService{
-		graphClient:  graphClient,
+		graphClient:    graphClient,
-		squadservice: squadservice,
+		squadservice:   squadservice,
-		floorService: floorService,
+		floorService:   floorService,
-		bscaddress:   bscaddress,
+		profileService: profileService,
+		bscaddress:     bscaddress,
 	}
 }
 
@@ -106,6 +110,16 @@ func (s *TransactionService) GetLightPageByLimit(ctx context.Context, pagenumber
 			return transaction.Nft.TransactionHistory[i].Timestamp > transaction.Nft.TransactionHistory[j].Timestamp
 		})
 		transaction.IsMine = transaction.Buyer.Address == s.bscaddress || transaction.Seller.Address == s.bscaddress
+		if n, err := s.profileService.GetUsername(transaction.Seller.Address); err != nil {
+			transaction.SellerUsername = transaction.Seller.Address
+		} else {
+			transaction.SellerUsername = n
+		}
+		if n, err := s.profileService.GetUsername(transaction.Buyer.Address); err != nil {
+			transaction.BuyerUsername = transaction.Buyer.Address
+		} else {
+			transaction.BuyerUsername = n
+		}
 	}
 
 	var res []Transaction
@@ -153,18 +167,28 @@ func (s *TransactionService) GetPageByLimit(ctx context.Context, pagenumber int,
 	}
 
 	for _, transaction := range respData.Transactions {
-		s, err := s.squadservice.GetSquad(transaction.Nft.TokenID)
+		squad, err := s.squadservice.GetSquad(transaction.Nft.TokenID)
 		if err != nil {
 			log.Error().Err(err).Msgf("getting squad for tokenid %d", transaction.Nft.TokenID)
 			continue
 		}
-		transaction.Squad = s
+		transaction.Squad = squad
 
-		transaction.Score = 10 / ((float64(s.Rank) / float64(10000)) * transaction.AskPrice)
+		transaction.Score = 10 / ((float64(squad.Rank) / float64(10000)) * transaction.AskPrice)
 		transaction.Url = fmt.Sprintf("https://pancakeswap.finance/nfts/collections/%s/%d", opts.Collection, transaction.Nft.TokenID)
 
 		transaction.Time = time.Unix(transaction.Timestamp, 0)
 		transaction.TimeDescription = humanize.Time(transaction.Time)
+		if n, err := s.profileService.GetUsername(transaction.Seller.Address); err != nil {
+			transaction.SellerUsername = transaction.Seller.Address
+		} else {
+			transaction.SellerUsername = n
+		}
+		if n, err := s.profileService.GetUsername(transaction.Buyer.Address); err != nil {
+			transaction.BuyerUsername = transaction.Buyer.Address
+		} else {
+			transaction.BuyerUsername = n
+		}
 	}
 
 	var res []Transaction