Swift is a strongly typed language that has long been used not only for iOS development. Apple is actively promoting it to new platforms and today it can be used for almost any task. Thanks to this, this implementation provides the work of TonSDK on many platforms at once, including the native one for mobile phones. Let me remind you that swift can also be built for android.

0. create folder for TONSDK, for example mkdir ./TONSDK
1. cd ./TONSDK
2. bash path_to_this_library/scripts/install_tonsdk.sh

0. Install Rust to your OS

1. git clone https://github.com/tonlabs/TON-SDK

2. cd ./TON-SDK

3. cargo update

4. cargo build --release

5. copy or create symlink of dynamic library
   macOS :
   ./TON-SDK/target/release/libton_client.dylib
   to
   /usr/local/lib/libton_client.dylib

   Linux :
   ./TON-SDK/target/release/libton_client.so
   to
   /usr/lib/libton_client.so

6. Create pkgConfig file :

macOS :
/usr/local/lib/pkgconfig/libton_client.pc

prefix=/usr/local
exec_prefix=${prefix}
includedir=${prefix}/include
libdir=${exec_prefix}/lib

Name: ton_client
Description: ton_client
Version: 1.0.0
Cflags: -I${includedir}
Libs: -L${libdir} -lton_client

Linux:
/usr/lib/pkgconfig/libton_client.pc

prefix=/usr
exec_prefix=${prefix}
includedir=${prefix}/include
libdir=${exec_prefix}/lib

Name: ton_client
Description: ton_client
Version: 1.0.0
Cflags: -I${includedir}
Libs: -L${libdir} -lton_client

7. Copy or create symlink of file
   /TON-SDK/ton_client/client/tonclient.h
   to
   MacOS:
   /usr/local/include/tonclient.h
   Linux:
   /usr/include/tonclient.h

1. The Cargo.toml for ton_client must notify cargo to create static and dynamic C libraries for our code

[lib]
name = "ton_client"
crate-type = ["cdylib", "staticlib"]

2. cargo install cargo-lipo
3. rustup target add aarch64-apple-ios x86_64-apple-ios

cd ./TON-SDK
cargo lipo --release

5. In xcode File > Add files to "Name Your Project" navigate to ./TON-SDK/ton_client/tonclient.h
6. Create bridge. In xcode File > New > File, select Header File, set name for example Tonclient-Bridging-Header.h and add this code:

#ifndef Tonclient_Bridging_Header_h
#define Tonclient_Bridging_Header_h

#include <stdbool.h>
#import "tonclient.h"

#endif

7. Add path to search for headers ( path to tonclient.h )
   
8. Add path to search for libraries ( path to libton_client.a )
   
9. Build ...

All requests are async.

import TonClientSwift

var config: TSDKClientConfig = .init()
config.network = TSDKNetworkConfig(server_address: "https://net.ton.dev")
let client: TSDKClientModule = .init(config: config)

// Crypto
client.crypto.factorize(TSDKParamsOfFactorize(composite: "17ED48941A08F981")) { (response) in
    print(response.result?.factors)
}

// Boc
let payload: TSDKParamsOfParse = .init(bocEncodedBase64: "te6ccgEBAQEAWAAAq2n+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAE/zMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzMzSsG8DgAAAAAjuOu9NAL7BxYpA")
client.boc.parse_message(payload) { (response) in
    if let result = response.result, let parsed: [String: Any] = result.parsed.toDictionary() {
        print(parsed["id"])
        print(parsed["src"])
        print(parsed["dst"])
    }
}

client.crypto.factorize(TSDKParamsOfFactorize(composite: "17ED48941A08F981")) { (response) in
    if let error = response.error {
        print(error.data.toJSON())
        print(error.code)
    }
}

Please, set custom working directory to project folder for your xcode scheme. This is necessary for the relative path "./" to the project folders to work. You may change it with the xcode edit scheme menu.

Or inside file path_to_this_library/.swiftpm/xcode/xcshareddata/xcschemes/TonClientSwift.xcscheme set to tag "LaunchAction" absolute path to this library with options:
useCustomWorkingDirectory = "YES"
customWorkingDirectory = "/path_to_ton_sdk"

Tests

1. inside root directory of ton-client-swift create .env.debug file with NET TON DEV

server_address=https://net.ton.dev
giver_address=0:653b9a6452c7a982c6dc92b2da9eba832ade1c467699ebb3b43dca6d77b780dd
giver_abi_name=Giver
giver_function=grant

Optional: Install locale NodeSE for tests if you needed:

• launch docker
• install nodejs to your OS
• npm install -g ton-dev-cli
• ton start
  by default nodeSE will start on localhost:80
  NODE SE

server_address=http:https://localhost:80
giver_address=0:841288ed3b55d9cdafa806807f02a0ae0c169aa5edfe88a789a6482429756a94
giver_abi_name=GiverNodeSE
giver_function=sendGrams
giver_amount=10000000000

2. Run Tests
   MacOS:
   Run Tests inside Xcode
   Linux:
   swift test --generate-linuxmain
   swift test --enable-test-discovery