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add get token balance for address function

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This commit is contained in:
julian 2023-03-01 14:04:25 -06:00
parent 5bf18a541a
commit 100ab39847
1 changed files with 52 additions and 6 deletions
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58
lib/services/ethereum/ethereum_api.dart
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@ -130,8 +130,8 @@ class EthereumResponse<T> {
}
abstract class EthereumAPI {
static const blockExplorer = "https://blockscout.com/eth/mainnet/api";
static const abiUrl =
static const blockScout = "https://blockscout.com/eth/mainnet/api";
static const etherscanApi =
"https://api.etherscan.io/api"; //TODO - Once our server has abi functionality update
static const gasTrackerUrl =
@ -141,7 +141,7 @@ abstract class EthereumAPI {
String address, String action) async {
try {
final response = await get(Uri.parse(
"$blockExplorer?module=account&action=$action&address=$address"));
"$blockScout?module=account&action=$action&address=$address"));
if (response.statusCode == 200) {
return AddressTransaction.fromJson(
jsonDecode(response.body) as Map<String, dynamic>);
@ -163,7 +163,7 @@ abstract class EthereumAPI {
}) async {
try {
String uriString =
"$blockExplorer?module=account&action=tokentx&address=$address";
"$blockScout?module=account&action=tokentx&address=$address";
if (contractAddress != null) {
uriString += "&contractAddress=$contractAddress";
}
@ -283,6 +283,52 @@ abstract class EthereumAPI {
// }
// }
static Future<EthereumResponse<int>> getWalletTokenBalance({
required String address,
required String contractAddress,
}) async {
try {
final uri = Uri.parse(
"$blockScout?module=account&action=tokenbalance"
"&contractaddress=$contractAddress&address=$address",
);
final response = await get(uri);
if (response.statusCode == 200) {
final json = jsonDecode(response.body);
if (json["message"] == "OK") {
final result = json["result"] as String;
return EthereumResponse(
int.parse(result),
null,
);
} else {
throw EthApiException(json["message"] as String);
}
} else {
throw EthApiException(
"getWalletTokens($address) failed with status code: "
"${response.statusCode}",
);
}
} on EthApiException catch (e) {
return EthereumResponse(
null,
e,
);
} catch (e, s) {
Logging.instance.log(
"getWalletTokens(): $e\n$s",
level: LogLevel.Error,
);
return EthereumResponse(
null,
EthApiException(e.toString()),
);
}
}
static Future<GasTracker> getGasOracle() async {
final response = await get(Uri.parse(gasTrackerUrl));
if (response.statusCode == 200) {
@ -313,7 +359,7 @@ abstract class EthereumAPI {
String contractAddress) async {
try {
final response = await get(Uri.parse(
"$blockExplorer?module=token&action=getToken&contractaddress=$contractAddress"));
"$blockScout?module=token&action=getToken&contractaddress=$contractAddress"));
if (response.statusCode == 200) {
final json = jsonDecode(response.body);
if (json["message"] == "OK") {
@ -371,7 +417,7 @@ abstract class EthereumAPI {
static Future<AbiRequestResponse> fetchTokenAbi(
String contractAddress) async {
final response = await get(Uri.parse(
"$abiUrl?module=contract&action=getabi&address=$contractAddress&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
"$etherscanApi?module=contract&action=getabi&address=$contractAddress&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
if (response.statusCode == 200) {
return AbiRequestResponse.fromJson(
json.decode(response.body) as Map<String, dynamic>);