Refactor NetworkLayer in sake of consistency.

Author: yaroslavyaroslav

Sources/Core/EthereumAddress/Extensions.swift renamed to Sources/Core/EthereumAddress/Array+Extensions.swift

@@ -0,0 +1,111 @@
+//
+//  APIRequest+ComputedProperties.swift
+//  
+//
+//  Created by Yaroslav Yashin on 12.07.2022.
+//
+
+import Foundation
+
+extension APIRequest {
+    var method: REST {
+        switch self {
+        default: return .POST
+        }
+    }
+
+   public var encodedBody: Data {
+        let request = RequestBody(method: self.call, params: self.parameters)
+        // this is safe to force try this here
+        // Because request must failed to compile if it not conformable with `Encodable` protocol
+        return try! JSONEncoder().encode(request)
+    }
+
+    var parameters: [RequestParameter] {
+        switch self {
+        case .gasPrice, .blockNumber, .getNetwork, .getAccounts, .getTxPoolStatus, .getTxPoolContent, .getTxPoolInspect:
+            return [RequestParameter]()
+
+        case .estimateGas(let transactionParameters, let blockNumber):
+            return [RequestParameter.transaction(transactionParameters), RequestParameter.string(blockNumber.stringValue)]
+
+        case let .sendRawTransaction(hash):
+            return [RequestParameter.string(hash)]
+
+        case let .sendTransaction(transactionParameters):
+            return [RequestParameter.transaction(transactionParameters)]
+
+        case .getTransactionByHash(let hash):
+            return [RequestParameter.string(hash)]
+
+        case .getTransactionReceipt(let receipt):
+            return [RequestParameter.string(receipt)]
+
+        case .getLogs(let eventFilterParameters):
+            return [RequestParameter.eventFilter(eventFilterParameters)]
+
+        case .personalSign(let address, let string):
+            return [RequestParameter.string(address), RequestParameter.string(string)]
+
+        case .call(let transactionParameters, let blockNumber):
+            return [RequestParameter.transaction(transactionParameters), RequestParameter.string(blockNumber.stringValue)]
+
+        case .getTransactionCount(let address, let blockNumber):
+            return [RequestParameter.string(address), RequestParameter.string(blockNumber.stringValue)]
+
+        case .getBalance(let address, let blockNumber):
+            return [RequestParameter.string(address), RequestParameter.string(blockNumber.stringValue)]
+
+        case .getStorageAt(let address, let bigUInt, let blockNumber):
+            return [RequestParameter.string(address), RequestParameter.string(bigUInt.hexString), RequestParameter.string(blockNumber.stringValue)]
+
+        case .getCode(let address, let blockNumber):
+            return [RequestParameter.string(address), RequestParameter.string(blockNumber.stringValue)]
+
+        case .getBlockByHash(let hash, let bool):
+            return [RequestParameter.string(hash), RequestParameter.bool(bool)]
+
+        case .getBlockByNumber(let block, let bool):
+            return [RequestParameter.string(block.stringValue), RequestParameter.bool(bool)]
+
+        case .feeHistory(let uInt, let blockNumber, let array):
+            return [RequestParameter.string(uInt.hexString), RequestParameter.string(blockNumber.stringValue), RequestParameter.doubleArray(array)]
+
+        case .createAccount(let string):
+            return [RequestParameter.string(string)]
+
+        case .unlockAccount(let address, let string, let uInt):
+            return [RequestParameter.string(address), RequestParameter.string(string), RequestParameter.uint(uInt ?? 0)]
+        }
+    }
+
+    public var call: String {
+        switch self {
+        case .gasPrice: return "eth_gasPrice"
+        case .blockNumber: return "eth_blockNumber"
+        case .getNetwork: return "net_version"
+        case .getAccounts: return "eth_accounts"
+        case .sendRawTransaction: return "eth_sendRawTransaction"
+        case .sendTransaction: return "eth_sendTransaction"
+        case .getTransactionByHash: return "eth_getTransactionByHash"
+        case .getTransactionReceipt: return "eth_getTransactionReceipt"
+        case .personalSign: return "eth_sign"
+        case .getLogs: return "eth_getLogs"
+        case .call: return "eth_call"
+        case .estimateGas: return "eth_estimateGas"
+        case .getTransactionCount: return "eth_getTransactionCount"
+        case .getBalance: return "eth_getBalance"
+        case .getStorageAt: return "eth_getStorageAt"
+        case .getCode: return "eth_getCode"
+        case .getBlockByHash: return "eth_getBlockByHash"
+        case .getBlockByNumber: return "eth_getBlockByNumber"
+        case .feeHistory: return "eth_feeHistory"
+
+        case .unlockAccount: return "personal_unlockAccount"
+        case .createAccount: return "personal_createAccount"
+        case .getTxPoolStatus: return "txpool_status"
+        case .getTxPoolContent: return "txpool_content"
+        case .getTxPoolInspect: return "txpool_inspect"
+        }
+    }
+}

Sources/Core/EthereumNetwork/APIRequestParameter.swift

@@ -0,0 +1,28 @@
+//
+//  File.swift
+//  
+//
+//  Created by Yaroslav Yashin on 12.07.2022.
+//
+
+import Foundation
+
+/// JSON RPC response structure for serialization and deserialization purposes.
+public struct APIResponse<Result>: Decodable where Result: APIResultType {
+    public var id: Int
+    public var jsonrpc = "2.0"
+    public var result: Result
+}
+
+enum REST: String {
+    case POST
+    case GET
+}
+
+struct RequestBody: Encodable {
+    var jsonrpc = "2.0"
+    var id = Counter.increment()
+
+    var method: String
+    var params: [RequestParameter]
+}