status-go/services/wallet/thirdparty/alchemy/client.go

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package alchemy
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
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"github.com/cenkalti/backoff/v4"
"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/log"
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walletCommon "github.com/status-im/status-go/services/wallet/common"
"github.com/status-im/status-go/services/wallet/connection"
"github.com/status-im/status-go/services/wallet/thirdparty"
)
const nftMetadataBatchLimit = 100
const contractMetadataBatchLimit = 100
func getBaseURL(chainID walletCommon.ChainID) (string, error) {
switch uint64(chainID) {
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case walletCommon.EthereumMainnet:
return "https://eth-mainnet.g.alchemy.com", nil
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case walletCommon.EthereumGoerli:
return "https://eth-goerli.g.alchemy.com", nil
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case walletCommon.EthereumSepolia:
return "https://eth-sepolia.g.alchemy.com", nil
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case walletCommon.OptimismMainnet:
return "https://opt-mainnet.g.alchemy.com", nil
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case walletCommon.OptimismGoerli:
return "https://opt-goerli.g.alchemy.com", nil
case walletCommon.OptimismSepolia:
return "https://opt-sepolia.g.alchemy.com", nil
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case walletCommon.ArbitrumMainnet:
return "https://arb-mainnet.g.alchemy.com", nil
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case walletCommon.ArbitrumGoerli:
return "https://arb-goerli.g.alchemy.com", nil
case walletCommon.ArbitrumSepolia:
return "https://arb-sepolia.g.alchemy.com", nil
}
return "", thirdparty.ErrChainIDNotSupported
}
func (o *Client) ID() string {
return AlchemyID
}
func (o *Client) IsChainSupported(chainID walletCommon.ChainID) bool {
_, err := getBaseURL(chainID)
return err == nil
}
func (o *Client) IsConnected() bool {
return o.connectionStatus.IsConnected()
}
func getAPIKeySubpath(apiKey string) string {
if apiKey == "" {
return "demo"
}
return apiKey
}
func getNFTBaseURL(chainID walletCommon.ChainID, apiKey string) (string, error) {
baseURL, err := getBaseURL(chainID)
if err != nil {
return "", err
}
return fmt.Sprintf("%s/nft/v3/%s", baseURL, getAPIKeySubpath(apiKey)), nil
}
type Client struct {
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thirdparty.CollectibleContractOwnershipProvider
client *http.Client
apiKeys map[uint64]string
connectionStatus *connection.Status
}
func NewClient(apiKeys map[uint64]string) *Client {
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for _, chainID := range walletCommon.AllChainIDs() {
if apiKeys[uint64(chainID)] == "" {
log.Warn("Alchemy API key not available for", "chainID", chainID)
}
}
return &Client{
client: &http.Client{Timeout: time.Minute},
apiKeys: apiKeys,
connectionStatus: connection.NewStatus(),
}
}
func (o *Client) doQuery(ctx context.Context, url string) (*http.Response, error) {
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
if err != nil {
return nil, err
}
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return o.doWithRetries(req)
}
func (o *Client) doPostWithJSON(ctx context.Context, url string, payload any) (*http.Response, error) {
payloadJSON, err := json.Marshal(payload)
if err != nil {
return nil, err
}
payloadString := string(payloadJSON)
payloadReader := strings.NewReader(payloadString)
req, err := http.NewRequestWithContext(ctx, "POST", url, payloadReader)
if err != nil {
return nil, err
}
req.Header.Add("accept", "application/json")
req.Header.Add("content-type", "application/json")
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return o.doWithRetries(req)
}
func (o *Client) doWithRetries(req *http.Request) (*http.Response, error) {
b := backoff.ExponentialBackOff{
InitialInterval: time.Millisecond * 1000,
RandomizationFactor: 0.1,
Multiplier: 1.5,
MaxInterval: time.Second * 32,
MaxElapsedTime: time.Second * 128,
Clock: backoff.SystemClock,
}
b.Reset()
op := func() (*http.Response, error) {
resp, err := o.client.Do(req)
if err != nil {
return nil, backoff.Permanent(err)
}
if resp.StatusCode == http.StatusOK {
return resp, nil
}
err = fmt.Errorf("unsuccessful request: %d %s", resp.StatusCode, http.StatusText(resp.StatusCode))
if resp.StatusCode == http.StatusTooManyRequests {
return nil, err
}
return nil, backoff.Permanent(err)
}
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return backoff.RetryWithData(op, &b)
}
func (o *Client) FetchCollectibleOwnersByContractAddress(ctx context.Context, chainID walletCommon.ChainID, contractAddress common.Address) (*thirdparty.CollectibleContractOwnership, error) {
ownership := thirdparty.CollectibleContractOwnership{
ContractAddress: contractAddress,
Owners: make([]thirdparty.CollectibleOwner, 0),
}
queryParams := url.Values{
"contractAddress": {contractAddress.String()},
"withTokenBalances": {"true"},
}
baseURL, err := getNFTBaseURL(chainID, o.apiKeys[uint64(chainID)])
if err != nil {
return nil, err
}
for {
url := fmt.Sprintf("%s/getOwnersForContract?%s", baseURL, queryParams.Encode())
resp, err := o.doQuery(ctx, url)
if err != nil {
if ctx.Err() == nil {
o.connectionStatus.SetIsConnected(false)
}
return nil, err
}
o.connectionStatus.SetIsConnected(true)
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var alchemyOwnership CollectibleContractOwnership
err = json.Unmarshal(body, &alchemyOwnership)
if err != nil {
return nil, err
}
ownership.Owners = append(ownership.Owners, alchemyCollectibleOwnersToCommon(alchemyOwnership.Owners)...)
if alchemyOwnership.PageKey == "" {
break
}
queryParams["pageKey"] = []string{alchemyOwnership.PageKey}
}
return &ownership, nil
}
func (o *Client) FetchAllAssetsByOwner(ctx context.Context, chainID walletCommon.ChainID, owner common.Address, cursor string, limit int) (*thirdparty.FullCollectibleDataContainer, error) {
queryParams := url.Values{}
return o.fetchOwnedAssets(ctx, chainID, owner, queryParams, cursor, limit)
}
func (o *Client) FetchAllAssetsByOwnerAndContractAddress(ctx context.Context, chainID walletCommon.ChainID, owner common.Address, contractAddresses []common.Address, cursor string, limit int) (*thirdparty.FullCollectibleDataContainer, error) {
queryParams := url.Values{}
for _, contractAddress := range contractAddresses {
queryParams.Add("contractAddresses", contractAddress.String())
}
return o.fetchOwnedAssets(ctx, chainID, owner, queryParams, cursor, limit)
}
func (o *Client) fetchOwnedAssets(ctx context.Context, chainID walletCommon.ChainID, owner common.Address, queryParams url.Values, cursor string, limit int) (*thirdparty.FullCollectibleDataContainer, error) {
assets := new(thirdparty.FullCollectibleDataContainer)
queryParams["owner"] = []string{owner.String()}
queryParams["withMetadata"] = []string{"true"}
if len(cursor) > 0 {
queryParams["pageKey"] = []string{cursor}
assets.PreviousCursor = cursor
}
assets.Provider = o.ID()
baseURL, err := getNFTBaseURL(chainID, o.apiKeys[uint64(chainID)])
if err != nil {
return nil, err
}
for {
url := fmt.Sprintf("%s/getNFTsForOwner?%s", baseURL, queryParams.Encode())
resp, err := o.doQuery(ctx, url)
if err != nil {
if ctx.Err() == nil {
o.connectionStatus.SetIsConnected(false)
}
return nil, err
}
o.connectionStatus.SetIsConnected(true)
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
// if Json is not returned there must be an error
if !json.Valid(body) {
return nil, fmt.Errorf("invalid json: %s", string(body))
}
container := OwnedNFTList{}
err = json.Unmarshal(body, &container)
if err != nil {
return nil, err
}
assets.Items = append(assets.Items, alchemyToCollectiblesData(chainID, container.OwnedNFTs)...)
assets.NextCursor = container.PageKey
if len(assets.NextCursor) == 0 {
break
}
queryParams["cursor"] = []string{assets.NextCursor}
if limit != thirdparty.FetchNoLimit && len(assets.Items) >= limit {
break
}
}
return assets, nil
}
func getCollectibleUniqueIDBatches(ids []thirdparty.CollectibleUniqueID) []BatchTokenIDs {
batches := make([]BatchTokenIDs, 0)
for startIdx := 0; startIdx < len(ids); startIdx += nftMetadataBatchLimit {
endIdx := startIdx + nftMetadataBatchLimit
if endIdx > len(ids) {
endIdx = len(ids)
}
pageIDs := ids[startIdx:endIdx]
batchIDs := BatchTokenIDs{
IDs: make([]TokenID, 0, len(pageIDs)),
}
for _, id := range pageIDs {
batchID := TokenID{
ContractAddress: id.ContractID.Address,
TokenID: id.TokenID,
}
batchIDs.IDs = append(batchIDs.IDs, batchID)
}
batches = append(batches, batchIDs)
}
return batches
}
func (o *Client) fetchAssetsByBatchTokenIDs(ctx context.Context, chainID walletCommon.ChainID, batchIDs BatchTokenIDs) ([]thirdparty.FullCollectibleData, error) {
baseURL, err := getNFTBaseURL(chainID, o.apiKeys[uint64(chainID)])
if err != nil {
return nil, err
}
url := fmt.Sprintf("%s/getNFTMetadataBatch", baseURL)
resp, err := o.doPostWithJSON(ctx, url, batchIDs)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
// if Json is not returned there must be an error
if !json.Valid(body) {
return nil, fmt.Errorf("invalid json: %s", string(body))
}
assets := NFTList{}
err = json.Unmarshal(body, &assets)
if err != nil {
return nil, err
}
ret := alchemyToCollectiblesData(chainID, assets.NFTs)
return ret, nil
}
func (o *Client) FetchAssetsByCollectibleUniqueID(ctx context.Context, uniqueIDs []thirdparty.CollectibleUniqueID) ([]thirdparty.FullCollectibleData, error) {
ret := make([]thirdparty.FullCollectibleData, 0, len(uniqueIDs))
idsPerChainID := thirdparty.GroupCollectibleUIDsByChainID(uniqueIDs)
for chainID, ids := range idsPerChainID {
batches := getCollectibleUniqueIDBatches(ids)
for _, batch := range batches {
assets, err := o.fetchAssetsByBatchTokenIDs(ctx, chainID, batch)
if err != nil {
return nil, err
}
ret = append(ret, assets...)
}
}
return ret, nil
}
func getContractAddressBatches(ids []thirdparty.ContractID) []BatchContractAddresses {
batches := make([]BatchContractAddresses, 0)
for startIdx := 0; startIdx < len(ids); startIdx += contractMetadataBatchLimit {
endIdx := startIdx + contractMetadataBatchLimit
if endIdx > len(ids) {
endIdx = len(ids)
}
pageIDs := ids[startIdx:endIdx]
batchIDs := BatchContractAddresses{
Addresses: make([]common.Address, 0, len(pageIDs)),
}
for _, id := range pageIDs {
batchIDs.Addresses = append(batchIDs.Addresses, id.Address)
}
batches = append(batches, batchIDs)
}
return batches
}
func (o *Client) fetchCollectionsDataByBatchContractAddresses(ctx context.Context, chainID walletCommon.ChainID, batchAddresses BatchContractAddresses) ([]thirdparty.CollectionData, error) {
baseURL, err := getNFTBaseURL(chainID, o.apiKeys[uint64(chainID)])
if err != nil {
return nil, err
}
url := fmt.Sprintf("%s/getContractMetadataBatch", baseURL)
resp, err := o.doPostWithJSON(ctx, url, batchAddresses)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
// if Json is not returned there must be an error
if !json.Valid(body) {
return nil, fmt.Errorf("invalid json: %s", string(body))
}
collections := ContractList{}
err = json.Unmarshal(body, &collections)
if err != nil {
return nil, err
}
ret := alchemyToCollectionsData(chainID, collections.Contracts)
return ret, nil
}
func (o *Client) FetchCollectionsDataByContractID(ctx context.Context, contractIDs []thirdparty.ContractID) ([]thirdparty.CollectionData, error) {
ret := make([]thirdparty.CollectionData, 0, len(contractIDs))
idsPerChainID := thirdparty.GroupContractIDsByChainID(contractIDs)
for chainID, ids := range idsPerChainID {
batches := getContractAddressBatches(ids)
for _, batch := range batches {
contractsData, err := o.fetchCollectionsDataByBatchContractAddresses(ctx, chainID, batch)
if err != nil {
return nil, err
}
ret = append(ret, contractsData...)
}
}
return ret, nil
}