Swift Algorand SDK

This is a swift sdk that allows interaction with the algorand blockchain. It also supports interecting with the V2 indexer and Algo Apis

1. How to Install

To install the SDK in your Xcode project:

1. Navigate to File > Swift Packages > Add Package Dependency.
2. Paste the Git URL of this package.
3. Select the main branch and proceed.

2 Quickstart

The swift algorand sdk currently only supports Algod and Indexer 2.0, the only thing you need to do to start using the swift-algorand-sdk after installing it in your project is to import it like below:

import swift_algorand_sdk

Let's try some code

var ALGOD_API_ADDR="ALGOD-API-ADDRESS";
var ALGOD_API_TOKEN="ALGOD-API-TOKEN";
var ALGOD_API_PORT="ALGOD-API-PORT"
var algodClient=AlgodClient(host: ALGOD_API_ADDR, port: ALGOD_API_PORT, token: ALGOD_API_TOKEN)
 algodClient.getStatus().execute(){nodeStatusResponse in
        if(nodeStatusResponse.isSuccessful){
            print(nodeStatusResponse.data!.lastRound)
        }else{
            print(nodeStatusResponse.errorDescription)
        }
    
    }

    algodClient.transactionParams().execute(){ paramResponse in
    if(paramResponse.isSuccessful){
        print(paramResponse.data!.lastRound)
    }else{
        print(paramResponse.errorDescription);
    }
}

Please do note that you can always change the APi key for the Header of either Algod or Indexer requests, for example, someone using purestake will simply add the line below to the line after initializing AlgodClient

algodClient.set(key: "X-API-Key")

Payment Transaction Example (with Purestake)

let PURESTAKE_ALGOD_API_TESTNET_ADDRESS = "https://testnet-algorand.api.purestake.io/ps2"
let PURESTAKE_API_KEY = "YOUR-PURESTAKE-API-KEY"
let PURESTAKE_API_PORT = "443"

var algodClient = AlgodClient(host: PURESTAKE_ALGOD_API_TESTNET_ADDRESS, port: PURESTAKE_API_PORT, token: PURESTAKE_API_KEY)

let mnemonic = "cactus check vocal shuffle ..."
let account = try Account(mnemonic)
let senderAddress = account.getAddress()
let receiverAddress = try! Address("FMBQKMGDE7LYNDHCSUPJBXNMMT3HC2TXMIFAJKGBYJQDZN4R3M554N4QTY")

algodClient.transactionParams().execute { paramResponse in
    if !paramResponse.isSuccessful {
        print(paramResponse.errorDescription)
        return
    }

    let tx = try! Transaction.paymentTransactionBuilder()
        .setSender(senderAddress)
        .amount(10)
        .receiver(receiverAddress)
        .note("Swift Algorand SDK is cool".bytes)
        .suggestedParams(params: paramResponse.data!)
        .build()

    let signedTransaction = account.signTransaction(tx: tx)
    let encodedTrans: [Int8] = CustomEncoder.encodeToMsgPack(signedTransaction)

    algodClient.rawTransaction().rawtxn(rawtaxn: encodedTrans).execute { response in
        if response.isSuccessful {
            print(response.data!.txId)
        } else {
            print(response.errorDescription)
            print("Failed")
        }
    }
}

you can further query the pending transaction with

algodClient.pendingTransactionInformation(txId: "PENDING-TRANSACTION-ID").execute { pendingTransactionResponse in
    if pendingTransactionResponse.isSuccessful {
        print(pendingTransactionResponse.data!.confirmedRound)
    } else {
        print(pendingTransactionResponse.errorDescription)
        print("Error")
    }
}

Quickstart For Indexer

The indexer allow's us to query the blockchain for data and information. There are 12 indexer methods that allow this. Let's try some code

var indexerClient=IndexerClient(host: "INDEXER_API_ADDRESS", port: "API_PORT", token: "API_KEY")
  indexerClient.lookUpAssetBalances(assetId:14077815).execute(){response in
        if response.isSuccessful{
                print("success")
            print(response.data!.toJson()!)
        }else{
            print(response.errorDescription)
        }
    }

indexerClient.lookUpBlocks(roundNumber: 12471917).execute(){response in

        if response.isSuccessful{
                print("success")
            print(response.data!.toJson()!)
        }else{
            print(response.errorDescription)
        }
    }

indexerClient.searchForAccounts(assetId: 14077815).execute(){ response in
        if response.isSuccessful{
            print(response.data!.toJson()!)
        }else{
            print(response.errorDescription)
        }
    }

     indexerClient.searchForTransactions(txid:"HPS2AQU26NNVTFIJVBYYZN2P2T73AONKWCS7HPT5JUQEQMXFHMJA").execute(){ response in
        if response.isSuccessful{
            print(response.data!.toJson()!)
        }else{
            print(response.errorDescription)
            print("failure")

        }
    }


 indexerClient.lookUpAssetById(id:14077815).execute(){response in

        if response.isSuccessful{
                print("success")
            print(response.data!..toJson()!)
        }else{
            print(response.errorDescription)
            print("Error");

        }
    }

      indexerClient.searchForAssets(assetId:14077815).execute(){ response in
        if response.isSuccessful{
            print(response.data!..toJson()!)
        }else{
            print(response.errorDescription)
            print("Error");
        }
    }

Please feel free to check out this IOS showcase that shows you how to do much more with the Swift Algorand SDK