Struct Client

pub struct Client(/* private fields */);

Connected OPC UA client.

This represents an OPC UA client connected to a specific endpoint. Once a client is connected to an endpoint, it is not possible to switch to another server. Create a new client for that.

Once a connection to the given endpoint is established, the client keeps the connection open and reconnects if necessary.

If the connection fails unrecoverably, the client is no longer usable. In this case create a new client if required.

To disconnect, prefer method disconnect() over simply dropping the client: disconnection involves server communication and might take a short amount of time.

Implementations

impl Client

pub fn new(endpoint_url: &str) -> Result<Self>

Creates default client connected to endpoint.

If you need more control over the initialization, use ClientBuilder instead, and turn it into Client by calling connect().

Errors

See ClientBuilder::connect().

Panics

See ClientBuilder::connect().

pub fn into_async(self) -> AsyncClient

Turns client into AsyncClient.

The AsyncClient can be used to access methods in an asynchronous way.

pub fn state(&self) -> ClientState

Gets current channel and session state, and connect status.

pub fn disconnect(self)

Disconnects from endpoint.

This consumes the client and handles the graceful shutdown of the connection. This should be preferred over simply dropping the instance to give the server a chance to clean up and also to avoid blocking unexpectedly when the client is being dropped without calling this method.

Trait Implementations

impl Debug for Client

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.