Ruby
Download example here: send_signed_message.rb
Requirements
rubygem install ed25519gem install zbase32
Usage
export CLIENT_PRIVATE_KEY_HEX="your_hex_private_key"
export CLIENT_PUBLIC_KEY_ZBASE32="your_zbase32_public_key"
export SERVER_URL="https://gotoucan.app"
./send_signed_message.rb [SERVER_PUBLIC_KEY]