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https://github.com/horizontalsystems/oneinchkit.swift
1Inch extension to EvmKit.Swift. Implements interactions with 1Inch API, detection of 1Inch transactions and more.
https://github.com/horizontalsystems/oneinchkit.swift
1inch 1inch-api 1inch-api-v4
Last synced: about 2 months ago
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1Inch extension to EvmKit.Swift. Implements interactions with 1Inch API, detection of 1Inch transactions and more.
- Host: GitHub
- URL: https://github.com/horizontalsystems/oneinchkit.swift
- Owner: horizontalsystems
- License: mit
- Created: 2022-10-05T04:55:09.000Z (about 2 years ago)
- Default Branch: master
- Last Pushed: 2024-04-24T06:13:21.000Z (8 months ago)
- Last Synced: 2024-04-24T13:20:27.389Z (8 months ago)
- Topics: 1inch, 1inch-api, 1inch-api-v4
- Language: Swift
- Homepage:
- Size: 10 MB
- Stars: 2
- Watchers: 2
- Forks: 6
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# OneInchKit.Swift
`OneInchKit.Swift` is an extension to `EvmKit.Swift`, that wraps interactions with [`1Inch API`](https://docs.1inch.io/docs/aggregation-protocol/api/swagger/).
## Usage
### Initialization
```swift
import EvmKit
import OneInchKit
import HdWalletKit
let evmKit = try Kit.instance(
address: try EvmKit.Address(hex: "0x..user..address.."),
chain: .ethereum,
rpcSource: .ethereumInfuraWebsocket(projectId: "...", projectSecret: "..."),
transactionSource: .ethereumEtherscan(apiKey: "..."),
walletId: "unique_wallet_id",
minLogLevel: .error
)
let swapKit = OneInchKit.Kit.instance(evmKit: evmKit)
// Decorators are needed to detect and decorate transactions as `1Inch` transactions
OneInchKit.Kit.addDecorators(to: evmKit)
```
### Sample code to get swap data from 1Inch API, sign it and send to RPC node
```swift
// Get Signer object
let seed = Mnemonic.seed(mnemonic: ["mnemonic", "words", ...])!
let signer = try Signer.instance(seed: seed, chain: .ethereum)
// Sample swap data
let tokenFromAddress = try! EvmKit.Address(hex: "0x..from..token..address")
let tokenToAddress = try! EvmKit.Address(hex: "0x..to..token..address")
let amount = BigUInt("100000000000000000")
let gasPrice = GasPrice.legacy(gasPrice: 50_000_000_000)
// Get Swap object, evaluated transaction data by 1Inch aggregator
let swapDataSingle: Single = swapKit.swapSingle(
fromToken: tokenFromAddress,
toToken: tokenToAddress,
amount: amount,
slippage: 1,
protocols: nil,
recipient: nil,
gasPrice: gasPrice,
burnChi: nil,
complexityLevel: nil,
connectorTokens: nil,
allowPartialFill: nil,
gasLimit: nil,
mainRouteParts: nil,
parts: nil
)
// Generate a raw transaction
let rawTransactionSingle = swapDataSingle.flatMap { swap in
let tx = swap.transaction
let transactionData = EvmKit.TransactionData(to: tx.to, value: tx.value, input: tx.data)
return evmKit.rawTransaction(transactionData: transactionData, gasPrice: gasPrice, gasLimit: tx.gasLimit)
}
let sendSingle = rawTransactionSingle.flatMap { rawTransaction in
// Sign the transaction
let signature = try signer.signature(rawTransaction: rawTransaction)
// Send the transaction to RPC node
return evmKit.sendSingle(rawTransaction: rawTransaction, signature: signature)
}
let disposeBag = DisposeBag()
sendSingle
.subscribe(
onSuccess: { fullTransaction in
let transaction = fullTransaction.transaction
print("Transaction sent: \(transaction.hash.hs.hexString)")
}, onError: { error in
print("Send failed: \(error)")
}
)
.disposed(by: disposeBag)
```
## Installation
### Swift Package Manager
```swift
dependencies: [
.package(url: "https://github.com/horizontalsystems/OneInchKit.Swift.git", .upToNextMajor(from: "1.0.0"))
]
```
## License
The `OneInchKit.Swift` toolkit is open source and available under the terms of the [MIT License](https://github.com/horizontalsystems/ethereum-kit-ios/blob/master/LICENSE).