A lightweight MQTT 3.1.1 client written in pure Swift 3

• MQTT 3.1
• MQTT 3.1.1
• LWT
• SSL/TLS
• Message Persistence
• Automatic Reconnect
• Offline Buffering
• WebSocket Support
• Standard TCP Support
• Non-Blocking API
• Blocking API
• High Availability

Unfortunately there are some issues with the Swift Package Manager and Dispatch library that requires a lot of manual steps for your application to build. For a working set of steps, please refer to:

Compiling an Aphid application on the Raspberry Pi 3

Requires swift-DEVELOPMENT-SNAPSHOT-2016-09-03-a toolchain (Minimum REQUIRED for latest release)

1. Install OpenSSL:

   • macOS: brew install openssl
   • Ubuntu Linux: sudo apt-get install openssl

2. In Package.swift, add Aphid as a dependency for your project.

   import PackageDescription
   
   let package = Package(
       name: "ProjectName",
       dependencies: [
           .Package(url: "https://github.com/IBM-Swift/Aphid.git", majorVersion: 0, minor: 2)
       ])

3. Create XCode project to build library (Optional)

   $ swift package generate-xcodeproj \
           -Xswiftc -I/usr/local/opt/openssl/include \
           -Xlinker -L/usr/local/opt/openssl/lib
   

4. In Sources/main.swift, import the Aphid module.

       import Aphid

5. Note: build locally with:

   • macOS: swift build -Xcc -I/usr/local/opt/openssl/include -Xlinker -L/usr/local/opt/openssl/lib
   • Linux: swift build -Xcc -fblocks

Example usage can be found in our AphidClient Repository

There are several MQTT brokers you can use remotely such as the IBM IoT Foundation on Bluemix.

If testing locally, we recommend the Mosquitto broker:

- macOS: `brew install mosquitto`
- Ubuntu Linux: `apt-get install mosquitto`

This library is licensed under Apache 2.0. Full license text is available in LICENSE.