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nft.go
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nft.go
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package routes
import (
"encoding/hex"
"encoding/json"
"fmt"
"github.com/gorilla/mux"
"io"
"net/http"
"reflect"
"sort"
"time"
"github.com/deso-smart/deso-core/v2/lib"
)
type NFTEntryResponse struct {
OwnerPublicKeyBase58Check string `safeForLogging:"true"`
ProfileEntryResponse *ProfileEntryResponse `json:",omitempty"`
PostEntryResponse *PostEntryResponse `json:",omitempty"`
SerialNumber uint64 `safeForLogging:"true"`
IsForSale bool `safeForLogging:"true"`
IsPending bool `safeForLogging:"true"`
IsBuyNow bool `safeForLogging:"true"`
BuyNowPriceNanos uint64 `safeForLogging:"true"`
MinBidAmountNanos uint64 `safeForLogging:"true"`
LastAcceptedBidAmountNanos uint64 `safeForLogging:"true"`
HighestBidAmountNanos uint64 `safeForLogging:"true"`
LowestBidAmountNanos uint64 `safeForLogging:"true"`
// These fields are only populated when the reader is the owner.
LastOwnerPublicKeyBase58Check *string `json:",omitempty"`
EncryptedUnlockableText *string `json:",omitempty"`
// ExtraData is an arbitrary key value map
ExtraData map[string]string `safeForLogging:"true"`
}
type NFTCollectionResponse struct {
ProfileEntryResponse *ProfileEntryResponse `json:",omitempty"`
PostEntryResponse *PostEntryResponse `json:",omitempty"`
HighestBidAmountNanos uint64 `safeForLogging:"true"`
LowestBidAmountNanos uint64 `safeForLogging:"true"`
HighestBuyNowPriceNanos *uint64 `safeForLogging:"true"`
LowestBuyNowPriceNanos *uint64 `safeForLogging:"true"`
NumCopiesForSale uint64 `safeForLogging:"true"`
NumCopiesBuyNow uint64 `safeForLogging:"true"`
AvailableSerialNumbers []uint64 `safeForLogging:"true"`
}
type NFTBidEntryResponse struct {
PublicKeyBase58Check string
ProfileEntryResponse *ProfileEntryResponse `json:",omitempty"`
PostHashHex *string `json:",omitempty"`
// likely nil if included in a list of NFTBidEntryResponses for a single NFT
PostEntryResponse *PostEntryResponse `json:",omitempty"`
SerialNumber uint64 `safeForLogging:"true"`
BidAmountNanos uint64 `safeForLogging:"true"`
// What is the highest bid and the lowest bid on this serial number
HighestBidAmountNanos *uint64 `json:",omitempty"`
LowestBidAmountNanos *uint64 `json:",omitempty"`
// If we fetched the accepted bid history, include the accepted block height.
AcceptedBlockHeight *uint32 `json:",omitempty"`
// Current balance of this bidder.
BidderBalanceNanos uint64
}
type CreateNFTRequest struct {
UpdaterPublicKeyBase58Check string `safeForLogging:"true"`
NFTPostHashHex string `safeForLogging:"true"`
NumCopies int `safeForLogging:"true"`
NFTRoyaltyToCreatorBasisPoints int `safeForLogging:"true"`
NFTRoyaltyToCoinBasisPoints int `safeForLogging:"true"`
HasUnlockable bool `safeForLogging:"true"`
IsForSale bool `safeForLogging:"true"`
MinBidAmountNanos int `safeForLogging:"true"`
IsBuyNow bool `safeForLogging:"true"`
BuyNowPriceNanos uint64 `safeForLogging:"true"`
AdditionalDESORoyaltiesMap map[string]uint64 `safeForLogging:"true"`
AdditionalCoinRoyaltiesMap map[string]uint64 `safeForLogging:"true"`
ExtraData map[string]string `safeForLogging:"true"`
MinFeeRateNanosPerKB uint64 `safeForLogging:"true"`
// No need to specify ProfileEntryResponse in each TransactionFee
TransactionFees []TransactionFee `safeForLogging:"true"`
}
type CreateNFTResponse struct {
NFTPostHashHex string `safeForLogging:"true"`
TotalInputNanos uint64
ChangeAmountNanos uint64
FeeNanos uint64
Transaction *lib.MsgDeSoTxn
TransactionHex string
}
func (fes *APIServer) CreateNFT(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := CreateNFTRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Error parsing request body: %v", err))
return
}
// Grab a view (needed for getting global params, etc).
utxoView, err := fes.backendServer.GetMempool().GetAugmentedUniversalView()
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Error getting utxoView: %v", err))
return
}
// Validate the requestData.
if requestData.NFTPostHashHex == "" {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Must include NFTPostHashHex"))
return
} else if requestData.UpdaterPublicKeyBase58Check == "" {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Must include UpdaterPublicKeyBase58Check"))
return
} else if utxoView.GlobalParamsEntry.MaxCopiesPerNFT == 0 {
_AddBadRequestError(ww,
"NFT minting has not been enabled yet. Check back soon :)")
return
} else if requestData.NumCopies <= 0 || requestData.NumCopies > int(utxoView.GlobalParamsEntry.MaxCopiesPerNFT) {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: NumCopies must be between %d and %d, received: %d",
1, utxoView.GlobalParamsEntry.MaxCopiesPerNFT, requestData.NumCopies))
return
} else if requestData.NFTRoyaltyToCreatorBasisPoints < 0 || requestData.NFTRoyaltyToCreatorBasisPoints > int(fes.Params.MaxNFTRoyaltyBasisPoints) {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: NFTRoyaltyToCreatorBasisPoints must be between %d and %d, received: %d",
0, fes.Params.MaxNFTRoyaltyBasisPoints, requestData.NFTRoyaltyToCreatorBasisPoints))
return
} else if requestData.MinBidAmountNanos < 0 {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: MinBidAmountNanos must be >= 0, got: %d", requestData.MinBidAmountNanos))
return
} else if requestData.NFTRoyaltyToCoinBasisPoints < 0 || requestData.NFTRoyaltyToCoinBasisPoints > int(fes.Params.MaxNFTRoyaltyBasisPoints) {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: NFTRoyaltyToCoinBasisPoints must be between %d and %d, received: %d",
0, fes.Params.MaxNFTRoyaltyBasisPoints, requestData.NFTRoyaltyToCoinBasisPoints))
return
} else if !requestData.IsBuyNow && requestData.BuyNowPriceNanos > 0 {
_AddBadRequestError(ww, fmt.Sprint("CreateNFT: cannot set BuyNowPriceNanos if NFT is not going to be "+
"sold in a 'Buy Now' fashion"))
return
} else if requestData.IsBuyNow && requestData.BuyNowPriceNanos < uint64(requestData.MinBidAmountNanos) {
_AddBadRequestError(ww, fmt.Sprint("CreateNFT: cannot set BuyNowPriceNanos less than MinBidAmountNanos"))
return
}
// Sum basis points for DESO royalties
additionalDESORoyaltiesBasisPoints := uint64(0)
additionalDESORoyaltiesPubKeyMap := make(map[lib.PublicKey]uint64)
for desoRoyaltyPublicKey, basisPoints := range requestData.AdditionalDESORoyaltiesMap {
// Check that the public key is valid
additionalDESORoyaltyPublicKeyBytes, _, err := lib.Base58CheckDecode(desoRoyaltyPublicKey)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: Problem decoding Additional DESO Royalty public key %s: %v", desoRoyaltyPublicKey, err))
return
}
// only add this to the map if basis points > 0
if basisPoints > 0 {
additionalDESORoyaltiesBasisPoints += basisPoints
additionalDESORoyaltiesPubKeyMap[*lib.NewPublicKey(additionalDESORoyaltyPublicKeyBytes)] = basisPoints
}
}
// Sum basis points for Coin royalties
additionalCoinRoyaltiesBasisPoints := uint64(0)
additionalCoinRoyaltiesPubKeyMap := make(map[lib.PublicKey]uint64)
for coinRoyaltyPublicKey, basisPoints := range requestData.AdditionalCoinRoyaltiesMap {
// Check that the public key is valid
additionalCoinRoyaltyPublicKeyBytes, _, err := lib.Base58CheckDecode(coinRoyaltyPublicKey)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: Problem decoding Additional Coin Royalty public key %s: %v", coinRoyaltyPublicKey, err))
return
}
// PKID must map to an existing profile in order for us to give royalties to that coin
profileEntry := utxoView.GetProfileEntryForPublicKey(additionalCoinRoyaltyPublicKeyBytes)
if profileEntry == nil || profileEntry.IsDeleted() {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: No profile found for public key %s", coinRoyaltyPublicKey))
return
}
// only add this to the map if basis points > 0
if basisPoints > 0 {
additionalCoinRoyaltiesBasisPoints += basisPoints
additionalCoinRoyaltiesPubKeyMap[*lib.NewPublicKey(additionalCoinRoyaltyPublicKeyBytes)] = basisPoints
}
}
if additionalCoinRoyaltiesBasisPoints+additionalDESORoyaltiesBasisPoints+
uint64(requestData.NFTRoyaltyToCoinBasisPoints)+uint64(requestData.NFTRoyaltyToCreatorBasisPoints) >
fes.Params.MaxNFTRoyaltyBasisPoints {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: Total royalty basis points too high: creator royalty %d, coin royalty %d, "+
"additional DESO royalties %d, additional coin royalties %d",
requestData.NFTRoyaltyToCreatorBasisPoints, requestData.NFTRoyaltyToCoinBasisPoints,
additionalDESORoyaltiesBasisPoints, additionalCoinRoyaltiesBasisPoints))
return
}
// Get the PostHash for the NFT we are creating.
nftPostHashBytes, err := hex.DecodeString(requestData.NFTPostHashHex)
if err != nil || len(nftPostHashBytes) != lib.HashSizeBytes {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFT: Error parsing post hash %v: %v",
requestData.NFTPostHashHex, err))
return
}
nftPostHash := &lib.BlockHash{}
copy(nftPostHash[:], nftPostHashBytes)
// Get the updater's public key.
updaterPublicKeyBytes, _, err := lib.Base58CheckDecode(requestData.UpdaterPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Problem decoding user public key: %v", err))
return
}
// Compute the additional transaction fees as specified by the request body and the node-level fees.
additionalOutputs, err := fes.getTransactionFee(lib.TxnTypeCreateNFT, updaterPublicKeyBytes, requestData.TransactionFees)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: TransactionFees specified in Request body are invalid: %v", err))
return
}
nftFee := utxoView.GlobalParamsEntry.CreateNFTFeeNanos * uint64(requestData.NumCopies)
extraData, err := EncodeExtraDataMap(requestData.ExtraData)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Problem encoding ExtraData: %v", err))
return
}
// Try and create the create NFT txn for the user.
txn, totalInput, changeAmount, fees, err := fes.blockchain.CreateCreateNFTTxn(
updaterPublicKeyBytes,
nftPostHash,
uint64(requestData.NumCopies),
requestData.HasUnlockable,
requestData.IsForSale,
uint64(requestData.MinBidAmountNanos),
nftFee,
uint64(requestData.NFTRoyaltyToCreatorBasisPoints),
uint64(requestData.NFTRoyaltyToCoinBasisPoints),
requestData.IsBuyNow,
requestData.BuyNowPriceNanos,
additionalDESORoyaltiesPubKeyMap,
additionalCoinRoyaltiesPubKeyMap,
extraData,
requestData.MinFeeRateNanosPerKB, fes.backendServer.GetMempool(), additionalOutputs)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Problem creating transaction: %v", err))
return
}
// Add node source to txn metadata
fes.AddNodeSourceToTxnMetadata(txn)
txnBytes, err := txn.ToBytes(true)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFT: Problem serializing transaction: %v", err))
return
}
// Return all the data associated with the transaction in the response
res := CreateNFTResponse{
NFTPostHashHex: requestData.NFTPostHashHex,
TotalInputNanos: totalInput,
ChangeAmountNanos: changeAmount,
FeeNanos: fees,
Transaction: txn,
TransactionHex: hex.EncodeToString(txnBytes),
}
if err = json.NewEncoder(ww).Encode(res); err != nil {
_AddInternalServerError(ww, fmt.Sprintf("CreateNFT: Problem serializing object to JSON: %v", err))
return
}
}
type UpdateNFTRequest struct {
UpdaterPublicKeyBase58Check string `safeForLogging:"true"`
NFTPostHashHex string `safeForLogging:"true"`
SerialNumber int `safeForLogging:"true"`
IsForSale bool `safeForLogging:"true"`
MinBidAmountNanos int `safeForLogging:"true"`
IsBuyNow bool `safeForLogging:"true"`
BuyNowPriceNanos uint64 `safeForLogging:"true"`
MinFeeRateNanosPerKB uint64 `safeForLogging:"true"`
// No need to specify ProfileEntryResponse in each TransactionFee
TransactionFees []TransactionFee `safeForLogging:"true"`
}
type UpdateNFTResponse struct {
NFTPostHashHex string `safeForLogging:"true"`
SerialNumber int `safeForLogging:"true"`
TotalInputNanos uint64
ChangeAmountNanos uint64
FeeNanos uint64
Transaction *lib.MsgDeSoTxn
TransactionHex string
}
func (fes *APIServer) UpdateNFT(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := UpdateNFTRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Error parsing request body: %v", err))
return
}
utxoView, err := fes.backendServer.GetMempool().GetAugmentedUniversalView()
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Error getting utxoView: %v", err))
return
}
// Do a simple validation of the requestData.
if requestData.NFTPostHashHex == "" {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Must include NFTPostHashHex"))
return
} else if requestData.UpdaterPublicKeyBase58Check == "" {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Must include UpdaterPublicKeyBase58Check"))
return
} else if requestData.SerialNumber <= 0 || requestData.SerialNumber > int(utxoView.GlobalParamsEntry.MaxCopiesPerNFT) {
_AddBadRequestError(ww, fmt.Sprintf(
"UpdateNFT: SerialNumbers must be between %d and %d, received: %d",
1, utxoView.GlobalParamsEntry.MaxCopiesPerNFT, requestData.SerialNumber))
return
} else if requestData.MinBidAmountNanos < 0 {
_AddBadRequestError(ww, fmt.Sprintf(
"UpdateNFT: MinBidAmountNanos must be >= 0, got: %d", requestData.MinBidAmountNanos))
return
} else if !requestData.IsBuyNow && requestData.BuyNowPriceNanos > 0 {
_AddBadRequestError(ww, fmt.Sprint("UpdateNFT: cannot set BuyNowPriceNanos if NFT is not going to be "+
"sold in a 'Buy Now' fashion"))
return
} else if requestData.IsBuyNow && requestData.BuyNowPriceNanos < uint64(requestData.MinBidAmountNanos) {
_AddBadRequestError(ww, fmt.Sprint("UpdateNFT: cannot set BuyNowPriceNanos less than MinBidAmountNanos"))
return
}
// Get the PostHash for the NFT.
nftPostHashBytes, err := hex.DecodeString(requestData.NFTPostHashHex)
if err != nil || len(nftPostHashBytes) != lib.HashSizeBytes {
_AddBadRequestError(ww, fmt.Sprintf(
"UpdateNFT: Error parsing post hash %v: %v",
requestData.NFTPostHashHex, err))
return
}
nftPostHash := &lib.BlockHash{}
copy(nftPostHash[:], nftPostHashBytes)
// Get the updater's public key.
updaterPublicKeyBytes, _, err := lib.Base58CheckDecode(requestData.UpdaterPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Problem decoding user public key: %v", err))
return
}
// Compute the additional transaction fees as specified by the request body and the node-level fees.
additionalOutputs, err := fes.getTransactionFee(lib.TxnTypeUpdateNFT, updaterPublicKeyBytes, requestData.TransactionFees)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: TransactionFees specified in Request body are invalid: %v", err))
return
}
// Get the NFT in question so we can do a more hardcore validation of the request data.
nftKey := lib.MakeNFTKey(nftPostHash, uint64(requestData.SerialNumber))
nftEntry := utxoView.GetNFTEntryForNFTKey(&nftKey)
if nftEntry == nil {
_AddBadRequestError(ww, fmt.Sprintf(
"UpdateNFT: Error could not find the NFT an NFT with postHash %v and serialNumber %d",
requestData.NFTPostHashHex, requestData.SerialNumber))
return
} else if nftEntry.IsForSale == requestData.IsForSale {
_AddBadRequestError(ww, fmt.Sprintf(
"UpdateNFT: NFT already has IsForSale=%v", requestData.IsForSale))
return
}
// Try and create the update NFT txn for the user.
txn, totalInput, changeAmount, fees, err := fes.blockchain.CreateUpdateNFTTxn(
updaterPublicKeyBytes,
nftPostHash,
uint64(requestData.SerialNumber),
requestData.IsForSale,
uint64(requestData.MinBidAmountNanos),
requestData.IsBuyNow,
requestData.BuyNowPriceNanos,
requestData.MinFeeRateNanosPerKB, fes.backendServer.GetMempool(), additionalOutputs)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Problem creating transaction: %v", err))
return
}
// Add node source to txn metadata
fes.AddNodeSourceToTxnMetadata(txn)
txnBytes, err := txn.ToBytes(true)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("UpdateNFT: Problem serializing transaction: %v", err))
return
}
// Return all the data associated with the transaction in the response
res := UpdateNFTResponse{
NFTPostHashHex: requestData.NFTPostHashHex,
SerialNumber: requestData.SerialNumber,
TotalInputNanos: totalInput,
ChangeAmountNanos: changeAmount,
FeeNanos: fees,
Transaction: txn,
TransactionHex: hex.EncodeToString(txnBytes),
}
if err = json.NewEncoder(ww).Encode(res); err != nil {
_AddInternalServerError(ww, fmt.Sprintf("UpdateNFT: Problem serializing object to JSON: %v", err))
return
}
}
type CreateNFTBidRequest struct {
UpdaterPublicKeyBase58Check string `safeForLogging:"true"`
NFTPostHashHex string `safeForLogging:"true"`
SerialNumber int `safeForLogging:"true"`
BidAmountNanos int `safeForLogging:"true"`
MinFeeRateNanosPerKB uint64 `safeForLogging:"true"`
// No need to specify ProfileEntryResponse in each TransactionFee
TransactionFees []TransactionFee `safeForLogging:"true"`
}
type CreateNFTBidResponse struct {
UpdaterPublicKeyBase58Check string `safeForLogging:"true"`
NFTPostHashHex string `safeForLogging:"true"`
SerialNumber int `safeForLogging:"true"`
BidAmountNanos int `safeForLogging:"true"`
TotalInputNanos uint64
ChangeAmountNanos uint64
FeeNanos uint64
Transaction *lib.MsgDeSoTxn
TransactionHex string
}
func (fes *APIServer) CreateNFTBid(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := CreateNFTBidRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Error parsing request body: %v", err))
return
}
utxoView, err := fes.backendServer.GetMempool().GetAugmentedUniversalView()
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Error getting utxoView: %v", err))
return
}
// Do a simple validation of the requestData.
if requestData.NFTPostHashHex == "" {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Must include NFTPostHashHex"))
return
} else if requestData.UpdaterPublicKeyBase58Check == "" {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Must include UpdaterPublicKeyBase58Check"))
return
} else if requestData.SerialNumber <= 0 || requestData.SerialNumber > int(utxoView.GlobalParamsEntry.MaxCopiesPerNFT) {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: SerialNumbers must be between %d and %d, received: %d",
1, utxoView.GlobalParamsEntry.MaxCopiesPerNFT, requestData.SerialNumber))
return
} else if requestData.BidAmountNanos < 0 {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: BidAmountNanos must be non-negative, received: %d", requestData.BidAmountNanos))
return
}
// Get the PostHash for the NFT.
nftPostHashBytes, err := hex.DecodeString(requestData.NFTPostHashHex)
if err != nil || len(nftPostHashBytes) != lib.HashSizeBytes {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: Error parsing post hash %v: %v",
requestData.NFTPostHashHex, err))
return
}
nftPostHash := &lib.BlockHash{}
copy(nftPostHash[:], nftPostHashBytes)
// Get the updater's public key.
updaterPublicKeyBytes, _, err := lib.Base58CheckDecode(requestData.UpdaterPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Problem decoding user public key: %v", err))
return
}
// Compute the additional transaction fees as specified by the request body and the node-level fees.
additionalOutputs, err := fes.getTransactionFee(lib.TxnTypeNFTBid, updaterPublicKeyBytes, requestData.TransactionFees)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: TransactionFees specified in Request body are invalid: %v", err))
return
}
// Get the NFT in question so we can do a more hardcore validation of the request data.
if requestData.SerialNumber != 0 {
nftKey := lib.MakeNFTKey(nftPostHash, uint64(requestData.SerialNumber))
nftEntry := utxoView.GetNFTEntryForNFTKey(&nftKey)
if nftEntry == nil {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: Error could not find the NFT an NFT with postHash %v and serialNumber %d",
requestData.NFTPostHashHex, requestData.SerialNumber))
return
} else if !nftEntry.IsForSale {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: NFT with postHash %v and serialNumber %d is not for sale.",
requestData.NFTPostHashHex, requestData.SerialNumber))
return
}
} else {
// The user can bid on serial number zero as long as it is the post hash provided is an NFT.
postEntry := utxoView.GetPostEntryForPostHash(nftPostHash)
if postEntry == nil {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: Error could not find a post with postHash %v", requestData.NFTPostHashHex))
return
} else if !postEntry.IsNFT {
_AddBadRequestError(ww, fmt.Sprintf(
"CreateNFTBid: Post with postHash %v is not an NFT.", requestData.NFTPostHashHex))
return
}
}
// RPH-FIXME: Make sure the user has sufficient funds to make this bid.
// Try and create the NFT bid txn for the user.
txn, totalInput, changeAmount, fees, err := fes.blockchain.CreateNFTBidTxn(
updaterPublicKeyBytes,
nftPostHash,
uint64(requestData.SerialNumber),
uint64(requestData.BidAmountNanos),
requestData.MinFeeRateNanosPerKB, fes.backendServer.GetMempool(), additionalOutputs)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Problem creating transaction: %v", err))
return
}
// Add node source to txn metadata
fes.AddNodeSourceToTxnMetadata(txn)
txnBytes, err := txn.ToBytes(true)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("CreateNFTBid: Problem serializing transaction: %v", err))
return
}
// Return all the data associated with the transaction in the response
res := CreateNFTBidResponse{
UpdaterPublicKeyBase58Check: requestData.UpdaterPublicKeyBase58Check,
NFTPostHashHex: requestData.NFTPostHashHex,
SerialNumber: requestData.SerialNumber,
BidAmountNanos: requestData.BidAmountNanos,
TotalInputNanos: totalInput,
ChangeAmountNanos: changeAmount,
FeeNanos: fees,
Transaction: txn,
TransactionHex: hex.EncodeToString(txnBytes),
}
if err = json.NewEncoder(ww).Encode(res); err != nil {
_AddInternalServerError(ww, fmt.Sprintf("CreateNFTBid: Problem serializing object to JSON: %v", err))
return
}
}
type AcceptNFTBidRequest struct {
UpdaterPublicKeyBase58Check string `safeForLogging:"true"`
NFTPostHashHex string `safeForLogging:"true"`
SerialNumber int `safeForLogging:"true"`
BidderPublicKeyBase58Check string `safeForLogging:"true"`
BidAmountNanos int `safeForLogging:"true"`
EncryptedUnlockableText string `safeForLogging:"true"`
MinFeeRateNanosPerKB uint64 `safeForLogging:"true"`
// No need to specify ProfileEntryResponse in each TransactionFee
TransactionFees []TransactionFee `safeForLogging:"true"`
}
type AcceptNFTBidResponse struct {
BidderPublicKeyBase58Check string `safeForLogging:"true"`
NFTPostHashHex string `safeForLogging:"true"`
SerialNumber int `safeForLogging:"true"`
BidAmountNanos int `safeForLogging:"true"`
TotalInputNanos uint64
ChangeAmountNanos uint64
FeeNanos uint64
Transaction *lib.MsgDeSoTxn
TransactionHex string
}
func (fes *APIServer) AcceptNFTBid(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := AcceptNFTBidRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Error parsing request body: %v", err))
return
}
utxoView, err := fes.backendServer.GetMempool().GetAugmentedUniversalView()
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Error getting utxoView: %v", err))
return
}
// Do a simple validation of the requestData.
if requestData.NFTPostHashHex == "" {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Must include NFTPostHashHex"))
return
} else if requestData.UpdaterPublicKeyBase58Check == "" || requestData.BidderPublicKeyBase58Check == "" {
_AddBadRequestError(ww, fmt.Sprintf(
"AcceptNFTBid: Must include UpdaterPublicKeyBase58Check and BidderPublicKeyBase58Check"))
return
} else if requestData.SerialNumber <= 0 || requestData.SerialNumber > int(utxoView.GlobalParamsEntry.MaxCopiesPerNFT) {
_AddBadRequestError(ww, fmt.Sprintf(
"AcceptNFTBid: SerialNumbers must be between %d and %d, received: %d",
1, utxoView.GlobalParamsEntry.MaxCopiesPerNFT, requestData.SerialNumber))
return
} else if requestData.BidAmountNanos < 0 {
_AddBadRequestError(ww, fmt.Sprintf(
"AcceptNFTBid: BidAmountNanos must be non-negative, received: %d", requestData.BidAmountNanos))
return
}
// Get the PostHash for the NFT.
nftPostHashBytes, err := hex.DecodeString(requestData.NFTPostHashHex)
if err != nil || len(nftPostHashBytes) != lib.HashSizeBytes {
_AddBadRequestError(ww, fmt.Sprintf(
"AcceptNFTBid: Error parsing post hash %v: %v",
requestData.NFTPostHashHex, err))
return
}
nftPostHash := &lib.BlockHash{}
copy(nftPostHash[:], nftPostHashBytes)
// Get the updater's public key.
updaterPublicKeyBytes, _, err := lib.Base58CheckDecode(requestData.UpdaterPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Problem decoding user public key: %v", err))
return
}
// Compute the additional transaction fees as specified by the request body and the node-level fees.
additionalOutputs, err := fes.getTransactionFee(lib.TxnTypeAcceptNFTBid, updaterPublicKeyBytes, requestData.TransactionFees)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: TransactionFees specified in Request body are invalid: %v", err))
return
}
// Get the bidder's public key.
bidderPublicKeyBytes, _, err := lib.Base58CheckDecode(requestData.BidderPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Problem decoding bidder public key: %v", err))
return
}
// Get the NFT bid so we can do a more hardcore validation of the request data.
bidderPKID := utxoView.GetPKIDForPublicKey(bidderPublicKeyBytes)
if bidderPKID == nil {
_AddBadRequestError(ww, fmt.Sprintf(
"AcceptNFTBid: Error could not find PKID for bidder pub key %v",
requestData.BidderPublicKeyBase58Check))
return
}
nftBidKey := lib.MakeNFTBidKey(bidderPKID.PKID, nftPostHash, uint64(requestData.SerialNumber))
nftBidEntry := utxoView.GetNFTBidEntryForNFTBidKey(&nftBidKey)
if nftBidEntry == nil {
_AddBadRequestError(ww, fmt.Sprintf(
"AcceptNFTBid: Error could not find an NFT bid entry for bidder pub key %v, "+
"postHash %v and serialNumber %d", requestData.BidderPublicKeyBase58Check,
requestData.NFTPostHashHex, requestData.SerialNumber))
return
}
// RPH-FIXME: Make sure the bidder has sufficient funds to fill this bid.
var encryptedUnlockableTextBytes []byte
if requestData.EncryptedUnlockableText != "" {
encryptedUnlockableTextBytes = []byte(requestData.EncryptedUnlockableText)
}
// Try and create the accept NFT bid txn for the user.
txn, totalInput, changeAmount, fees, err := fes.blockchain.CreateAcceptNFTBidTxn(
updaterPublicKeyBytes,
nftPostHash,
uint64(requestData.SerialNumber),
bidderPKID.PKID,
uint64(requestData.BidAmountNanos),
encryptedUnlockableTextBytes,
requestData.MinFeeRateNanosPerKB, fes.backendServer.GetMempool(), additionalOutputs)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Problem creating transaction: %v", err))
return
}
// Add node source to txn metadata
fes.AddNodeSourceToTxnMetadata(txn)
txnBytes, err := txn.ToBytes(true)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("AcceptNFTBid: Problem serializing transaction: %v", err))
return
}
// Return all the data associated with the transaction in the response
res := AcceptNFTBidResponse{
BidderPublicKeyBase58Check: requestData.BidderPublicKeyBase58Check,
NFTPostHashHex: requestData.NFTPostHashHex,
SerialNumber: requestData.SerialNumber,
BidAmountNanos: requestData.BidAmountNanos,
TotalInputNanos: totalInput,
ChangeAmountNanos: changeAmount,
FeeNanos: fees,
Transaction: txn,
TransactionHex: hex.EncodeToString(txnBytes),
}
if err = json.NewEncoder(ww).Encode(res); err != nil {
_AddInternalServerError(ww, fmt.Sprintf("AcceptNFTBid: Problem serializing object to JSON: %v", err))
return
}
}
type GetNFTShowcaseRequest struct {
ReaderPublicKeyBase58Check string `safeForLogging:"true"`
}
type GetNFTShowcaseResponse struct {
NFTCollections []*NFTCollectionResponse
}
func (fes *APIServer) GetNFTShowcase(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := GetNFTShowcaseRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTShowcase: Error parsing request body: %v", err))
return
}
var readerPublicKeyBytes []byte
var err error
if requestData.ReaderPublicKeyBase58Check != "" {
readerPublicKeyBytes, _, err = lib.Base58CheckDecode(requestData.ReaderPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTShowcase: Problem decoding reader public key: %v", err))
return
}
}
dropEntry, err := fes.GetLatestNFTDropEntry()
if err != nil {
_AddInternalServerError(ww, fmt.Sprintf("GetNFTShowcase: Problem getting latest drop: %v", err))
return
}
currentTime := uint64(time.Now().UnixNano())
if dropEntry.DropTstampNanos > currentTime {
// In this case, we have found a pending drop. We must go back one drop in order to
// get the current active drop.
if dropEntry.DropNumber == 1 {
// If the pending drop is drop #1, we need to return a blank dropEntry.
dropEntry = &NFTDropEntry{}
}
if dropEntry.DropNumber > 1 {
dropNumToFetch := dropEntry.DropNumber - 1
dropEntry, err = fes.GetNFTDropEntry(dropNumToFetch)
if err != nil {
_AddInternalServerError(ww, fmt.Sprintf(
"GetNFTShowcase: Problem getting drop #%d: %v", dropNumToFetch, err))
return
}
}
}
// Now that we have the drop entry, fetch the NFTs.
utxoView, err := fes.backendServer.GetMempool().GetAugmentedUniversalView()
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTShowcase: Error getting utxoView: %v", err))
return
}
var readerPKID *lib.PKID
if requestData.ReaderPublicKeyBase58Check != "" {
readerPKID = utxoView.GetPKIDForPublicKey(readerPublicKeyBytes).PKID
}
var nftCollectionResponses []*NFTCollectionResponse
for _, nftHash := range dropEntry.NFTHashes {
postEntry := utxoView.GetPostEntryForPostHash(nftHash)
if postEntry == nil {
_AddInternalServerError(ww, fmt.Sprint("GetNFTShowcase: Found nil post entry for NFT hash."))
return
}
if postEntry.NumNFTCopiesBurned == postEntry.NumNFTCopies {
continue
}
nftKey := lib.MakeNFTKey(nftHash, 1)
nftEntry := utxoView.GetNFTEntryForNFTKey(&nftKey)
postEntryResponse, err := fes._postEntryToResponse(
postEntry, false, fes.Params, utxoView, readerPublicKeyBytes, 2)
if err != nil {
_AddInternalServerError(ww, fmt.Sprint("GetNFTShowcase: Found invalid post entry for NFT hash."))
return
}
postEntryResponse.PostEntryReaderState = utxoView.GetPostEntryReaderState(readerPublicKeyBytes, postEntry)
nftCollectionResponse := fes._nftEntryToNFTCollectionResponse(nftEntry, postEntry.PosterPublicKey, postEntryResponse, utxoView, readerPKID)
nftCollectionResponses = append(nftCollectionResponses, nftCollectionResponse)
}
// Return all the data associated with the transaction in the response
res := GetNFTShowcaseResponse{
NFTCollections: nftCollectionResponses,
}
if err = json.NewEncoder(ww).Encode(res); err != nil {
_AddInternalServerError(ww, fmt.Sprintf("GetNFTShowcase: Problem serializing object to JSON: %v", err))
return
}
}
type GetNextNFTShowcaseRequest struct{}
type GetNextNFTShowcaseResponse struct {
NextNFTShowcaseTstamp uint64
}
func (fes *APIServer) GetNextNFTShowcase(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := GetNextNFTShowcaseRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNextNFTShowcase: Error parsing request body: %v", err))
return
}
dropEntry, err := fes.GetLatestNFTDropEntry()
if err != nil {
_AddInternalServerError(ww, fmt.Sprintf("GetNextNFTShowcase: Problem getting latest drop: %v", err))
return
}
var nextNFTShowcaseTstamp uint64
currentTime := uint64(time.Now().UnixNano())
if dropEntry.DropTstampNanos > currentTime && dropEntry.IsActive {
// If there is a pending+active drop, return its timestamp.
nextNFTShowcaseTstamp = dropEntry.DropTstampNanos
}
// Return all the data associated with the transaction in the response
res := GetNextNFTShowcaseResponse{
NextNFTShowcaseTstamp: nextNFTShowcaseTstamp,
}
if err = json.NewEncoder(ww).Encode(res); err != nil {
_AddInternalServerError(ww, fmt.Sprintf("GetNextNFTShowcase: Problem serializing object to JSON: %v", err))
return
}
}
type GetNFTsForUserRequest struct {
UserPublicKeyBase58Check string `safeForLogging:"true"`
ReaderPublicKeyBase58Check string `safeForLogging:"true"`
IsForSale *bool `safeForLogging:"true"`
// Ignored if IsForSale is provided
IsPending *bool `safeForLogging:"true"`
}
type NFTEntryAndPostEntryResponse struct {
PostEntryResponse *PostEntryResponse
NFTEntryResponses []*NFTEntryResponse
}
type GetNFTsForUserResponse struct {
NFTsMap map[string]*NFTEntryAndPostEntryResponse
}
func (fes *APIServer) GetNFTsForUser(ww http.ResponseWriter, req *http.Request) {
decoder := json.NewDecoder(io.LimitReader(req.Body, MaxRequestBodySizeBytes))
requestData := GetNFTsForUserRequest{}
if err := decoder.Decode(&requestData); err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTsForUser: Error parsing request body: %v", err))
return
}
if requestData.UserPublicKeyBase58Check == "" {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTsForUser: must provide UserPublicKeyBase58Check"))
return
}
userPublicKey, _, err := lib.Base58CheckDecode(requestData.UserPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTsForUser: Problem decoding reader public key: %v", err))
return
}
var readerPublicKeyBytes []byte
if requestData.ReaderPublicKeyBase58Check != "" {
readerPublicKeyBytes, _, err = lib.Base58CheckDecode(requestData.ReaderPublicKeyBase58Check)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTsForUser: Problem decoding reader public key: %v", err))
return
}
}
// Get the NFT bid so we can do a more hardcore validation of the request data.
utxoView, err := fes.backendServer.GetMempool().GetAugmentedUniversalView()
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTsForUser: Error getting utxoView: %v", err))
return
}
// Return all the data associated with the transaction in the response
res := GetNFTsForUserResponse{
NFTsMap: make(map[string]*NFTEntryAndPostEntryResponse),
}
pkid := utxoView.GetPKIDForPublicKey(userPublicKey)
readerPKIDEntry := utxoView.GetPKIDForPublicKey(readerPublicKeyBytes)
var readerPKID *lib.PKID
if readerPKIDEntry != nil {
readerPKID = readerPKIDEntry.PKID
}
nftEntries := utxoView.GetNFTEntriesForPKID(pkid.PKID)
filteredNFTEntries := []*lib.NFTEntry{}
if requestData.IsForSale != nil {
checkForSale := *requestData.IsForSale
for _, nftEntry := range nftEntries {
if checkForSale == nftEntry.IsForSale {
filteredNFTEntries = append(filteredNFTEntries, nftEntry)
}
}
} else if requestData.IsPending != nil {
checkIsPending := *requestData.IsPending
for _, nftEntry := range nftEntries {
if checkIsPending == nftEntry.IsPending {
filteredNFTEntries = append(filteredNFTEntries, nftEntry)
}
}
} else {
filteredNFTEntries = nftEntries
}
postHashToEntryResponseMap := make(map[*lib.BlockHash]*PostEntryResponse)
publicKeyToProfileEntryResponse := make(map[string]*ProfileEntryResponse)
for _, nftEntry := range filteredNFTEntries {
postEntryResponse := postHashToEntryResponseMap[nftEntry.NFTPostHash]
if postEntryResponse == nil {
postEntry := utxoView.GetPostEntryForPostHash(nftEntry.NFTPostHash)
postEntryResponse, err = fes._postEntryToResponse(postEntry, true, fes.Params, utxoView, readerPublicKeyBytes, 2)
if err != nil {
_AddBadRequestError(ww, fmt.Sprintf("GetNFTsForUser: Problem converting post entry to response: %v", err))
return
}
if peResponse, exists := publicKeyToProfileEntryResponse[postEntryResponse.PosterPublicKeyBase58Check]; !exists {