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WIP eth api refactor to use chifra based api

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This commit is contained in:
julian 2023-03-02 13:28:51 -06:00
parent 8466180b47
commit b4b4c5e696
2 changed files with 58 additions and 23 deletions
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69
lib/services/ethereum/ethereum_api.dart
View file

@ -1,11 +1,13 @@
import 'dart:convert';
import 'dart:math';
import 'package:decimal/decimal.dart';
import 'package:http/http.dart';
import 'package:stackwallet/models/ethereum/erc20_token.dart';
import 'package:stackwallet/models/ethereum/erc721_token.dart';
import 'package:stackwallet/models/ethereum/eth_token.dart';
import 'package:stackwallet/models/paymint/fee_object_model.dart';
import 'package:stackwallet/utilities/default_nodes.dart';
import 'package:stackwallet/utilities/eth_commons.dart';
import 'package:stackwallet/utilities/logger.dart';
@ -106,10 +108,14 @@ class EthereumResponse<T> {
final EthApiException? exception;
@override
toString() => "EthereumResponse{ value: $value, exception: $exception";
toString() => "EthereumResponse: { value: $value, exception: $exception }";
}
abstract class EthereumAPI {
static String get stackBaseServer => DefaultNodes.ethereum.host;
static String stackURI = "$stackBaseServer/eth/mainnet/api";
// 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
@ -120,12 +126,18 @@ abstract class EthereumAPI {
static Future<AddressTransaction> fetchAddressTransactions(
String address) async {
try {
final response = await get(Uri.parse(
final response = await get(
Uri.parse(
// "$blockScout?module=account&action=txlist&address=$address"));
"$etherscanApi?module=account&action=txlist&address=$address&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
// "stackURI?module=account&action=txlist&address=$address"));
"$stackBaseServer/export?addrs=$address",
),
);
// "$etherscanApi?module=account&action=txlist&address=$address&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
if (response.statusCode == 200) {
return AddressTransaction.fromJson(
jsonDecode(response.body) as Map<String, dynamic>);
jsonDecode(response.body)["data"] as List);
} else {
throw Exception(
'ERROR GETTING TRANSACTIONS WITH STATUS ${response.statusCode}');
@ -145,6 +157,7 @@ abstract class EthereumAPI {
try {
String uriString =
// "$blockScout?module=account&action=tokentx&address=$address";
// "stackURI?module=account&action=tokentx&address=$address";
"$etherscanApi?module=account&action=tokentx&address=$address&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP";
if (contractAddress != null) {
uriString += "&contractAddress=$contractAddress";
@ -271,18 +284,28 @@ abstract class EthereumAPI {
}) async {
try {
final uri = Uri.parse(
"$etherscanApi?module=account&action=tokenbalance"
"&contractaddress=$contractAddress&address=$address&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP",
"$stackBaseServer/tokens?addrs=$contractAddress $address",
);
final response = await get(uri);
if (response.statusCode == 200) {
final json = jsonDecode(response.body);
if (json["message"] == "OK") {
final result = json["result"] as String;
if (json["data"] is List) {
final map = json["data"].first as Map;
final bal = Decimal.tryParse(map["balance"].toString());
final int balance;
if (bal == null) {
balance = 0;
} else {
final int decimals = map["decimals"] as int;
balance = (bal * Decimal.fromInt(pow(10, decimals).truncate()))
.toBigInt()
.toInt();
}
return EthereumResponse(
int.parse(result),
balance,
null,
);
} else {
@ -341,6 +364,7 @@ abstract class EthereumAPI {
try {
final response = await get(Uri.parse(
"$etherscanApi?module=token&action=getToken&contractaddress=$contractAddress&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
// "stackURI?module=token&action=getToken&contractaddress=$contractAddress"));
// "$blockScout?module=token&action=getToken&contractaddress=$contractAddress"));
if (response.statusCode == 200) {
final json = jsonDecode(response.body);
@ -399,18 +423,28 @@ abstract class EthereumAPI {
static Future<EthereumResponse<String>> getTokenAbi(
String contractAddress) async {
try {
final response = await get(Uri.parse(
"$etherscanApi?module=contract&action=getabi&address=$contractAddress&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
final response = await get(
Uri.parse(
"$stackBaseServer/abis?addrs=$contractAddress",
),
);
if (response.statusCode == 200) {
final json = jsonDecode(response.body);
if (json["message"] == "OK") {
final json = jsonDecode(response.body)["data"] as List;
// trueblocks api does not contain the `anonymous` value
// web3dart expects it so hack it in
// TODO: fix this if we ever actually need to use contract ABI events
for (final map in json) {
if (map["type"] == "event") {
map["anonymous"] = false;
}
}
return EthereumResponse(
json["result"] as String,
jsonEncode(json),
null,
);
} else {
throw EthApiException(json["message"] as String);
}
} else {
throw EthApiException(
"getTokenAbi($contractAddress) failed with status code: "
@ -438,6 +472,7 @@ abstract class EthereumAPI {
String contractAddress) async {
try {
final response = await get(Uri.parse(
// "$stackURI?module=contract&action=getsourcecode&address=$contractAddress"));
"$etherscanApi?module=contract&action=getsourcecode&address=$contractAddress&apikey=EG6J7RJIQVSTP2BS59D3TY2G55YHS5F2HP"));
if (response.statusCode == 200) {
final json = jsonDecode(response.body);

8
lib/utilities/eth_commons.dart
View file

@ -15,11 +15,11 @@ class AddressTransaction {
required this.status,
});
factory AddressTransaction.fromJson(Map<String, dynamic> json) {
factory AddressTransaction.fromJson(List<dynamic> json) {
return AddressTransaction(
message: json['message'] as String,
result: json['result'] as List<dynamic>,
status: json['status'] as String,
message: "",
result: json,
status: "",
);
}