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

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package alchemy
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"sync"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/status-im/status-go/services/wallet/bigint"
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walletCommon "github.com/status-im/status-go/services/wallet/common"
"github.com/status-im/status-go/services/wallet/thirdparty"
)
func getBaseURL(chainID uint64) (string, error) {
switch 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
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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
}
return "", fmt.Errorf("chainID not supported: %d", chainID)
}
func getAPIKeySubpath(apiKey string) string {
if apiKey == "" {
return "demo"
}
return apiKey
}
func getNFTBaseURL(chainID uint64, apiKey string) (string, error) {
baseURL, err := getBaseURL(chainID)
if err != nil {
return "", err
}
return fmt.Sprintf("%s/nft/v2/%s", baseURL, getAPIKeySubpath(apiKey)), nil
}
type TokenBalance struct {
TokenID *bigint.HexBigInt `json:"tokenId"`
Balance *bigint.BigInt `json:"balance"`
}
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type CollectibleOwner struct {
OwnerAddress common.Address `json:"ownerAddress"`
TokenBalances []TokenBalance `json:"tokenBalances"`
}
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type CollectibleContractOwnership struct {
Owners []CollectibleOwner `json:"ownerAddresses"`
PageKey string `json:"pageKey"`
}
type Client struct {
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thirdparty.CollectibleContractOwnershipProvider
client *http.Client
apiKeys map[uint64]string
IsConnected bool
IsConnectedLock sync.RWMutex
}
func NewClient(apiKeys map[uint64]string) *Client {
return &Client{
client: &http.Client{Timeout: time.Minute},
apiKeys: apiKeys,
}
}
func (o *Client) doQuery(url string) (*http.Response, error) {
resp, err := o.client.Get(url)
if err != nil {
return nil, err
}
return resp, nil
}
func (o *Client) IsChainSupported(chainID uint64) bool {
_, err := getBaseURL(chainID)
return err == nil
}
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func alchemyOwnershipToCommon(contractAddress common.Address, alchemyOwnership CollectibleContractOwnership) (*thirdparty.CollectibleContractOwnership, error) {
owners := make([]thirdparty.CollectibleOwner, 0, len(alchemyOwnership.Owners))
for _, alchemyOwner := range alchemyOwnership.Owners {
balances := make([]thirdparty.TokenBalance, 0, len(alchemyOwner.TokenBalances))
for _, alchemyBalance := range alchemyOwner.TokenBalances {
balances = append(balances, thirdparty.TokenBalance{
TokenID: &bigint.BigInt{Int: alchemyBalance.TokenID.Int},
Balance: alchemyBalance.Balance,
})
}
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owner := thirdparty.CollectibleOwner{
OwnerAddress: alchemyOwner.OwnerAddress,
TokenBalances: balances,
}
owners = append(owners, owner)
}
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ownership := thirdparty.CollectibleContractOwnership{
ContractAddress: contractAddress,
Owners: owners,
}
return &ownership, nil
}
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func (o *Client) FetchCollectibleOwnersByContractAddress(chainID uint64, contractAddress common.Address) (*thirdparty.CollectibleContractOwnership, error) {
queryParams := url.Values{
"contractAddress": {contractAddress.String()},
"withTokenBalances": {"true"},
}
url, err := getNFTBaseURL(chainID, o.apiKeys[chainID])
if err != nil {
return nil, err
}
url = url + "/getOwnersForCollection?" + queryParams.Encode()
resp, err := o.doQuery(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
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var alchemyOwnership CollectibleContractOwnership
err = json.Unmarshal(body, &alchemyOwnership)
if err != nil {
return nil, err
}
return alchemyOwnershipToCommon(contractAddress, alchemyOwnership)
}