keygen-sh / example-cpp-license-validation

An example of making a simple license validation request from a C++ command line program

Example C++ License Validation

This is an example C++ program for validating a license key. It contains a small command line program which prompts for a license key value and then validates the key using Keygen's cloud software licensing API.

Running the example

First up, add an environment variable containing your account ID:

# Your Keygen account ID (via https://app.keygen.sh/settings)
export KEYGEN_ACCOUNT_ID="YOUR_KEYGEN_ACCOUNT_ID"

You can either run each line above within your terminal session before starting the app, or you can add the above contents to your ~/.bashrc file and then run source ~/.bashrc after saving the file.

First up, install C++ REST SDK and Boost. Also, make sure OpenSSL is installed (it typically is).

Using Homebrew:

brew install cpprestsdk
brew install boost

Using Apt:

sudo apt-get install libcpprest-dev
sudo apt-get install libboost-all-dev

Next, compile the source using g++:

g++ main.cpp -o bin.out -std=c++17 \
  -lcpprest \
  -lboost_system \
  -lboost_thread \
  -lboost_chrono \
  -lssl \
  -lcrypto \
  -pthread

Then run the script, passing in a key as the first argument:

./bin.out '<key>'

Or run this demo script:

KEYGEN_ACCOUNT_ID=demo ./bin.out C1B6DE-39A6E3-DE1529-8559A0-4AF593-V3

Running on other platforms

We are only including instructions on how to compile and run this example on macOS and Linux. If you'd like to create a PR with instructions for another platform, such as Windows, please feel free to open a PR.

Questions?

Reach out at [e-mail] if you have any questions or concerns!