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# Example with Comments
```go
// Bring the library into scope with the eduvpn prefix
import eduvpn "github.com/jwijenbergh/eduvpn-common"
// Callbacks
func stateCallback(state *eduvpn.VPNState, oldState string, newState string, data string) {
// OAuth is started, open the browser with the authorization URL
if newState == "OAuth_Started" {
openBrowser(data)
}
// Multiple profiles are found, we need to send a profile ID back using state.SetProfileID
if newState == "Ask_Profile" {
selectAndSendProfile(state, data)
}
}
func main() {
// Create the VPNState
state := &eduvpn.VPNState{}
// Register the state
// We use linux so the client ID will be org.eduvpn.app.linux
// We want to store the config files in configs
// We wrap the callback with the state argument
// And enable debugging
registerErr := state.Register("org.eduvpn.app.linux", "configs", func(old string, new string, data string) {
stateCallback(state, old, new, data)
}, true)
if registErr != nil {
// handle the error of not being able to register
}
// Cleanup the library at the end
defer state.Deregister()
// Connect to an example server without forcing TCP
config, configType, configErr := state.GetConnectConfig("eduvpn.example.com", false)
if configErr != nil {
// handle the error of not being able to get a config
}
if configType == "wireguard" {
// Connect using wireguard with the config
} else {
// Connect using OpenVPN with the config
}
// We are connected
setConnectErr := state.SetConnected()
if setConnectErr != nil {
// handle the error of not being able to call set connected
}
}
```
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