Struct Client 

pub struct Client { /* private fields */ }

A connection that sends calls to whichever worker holds the shards.

Implementations

impl Client

pub fn connect(addr: &str) -> Result<Self>

Connects to addr (host:port, unix:/path.sock or replicas://..., with optional connection options such as ?ca=ca.pem&token-file=token; see Security::from_options).

pub fn connect_with(addr: &str, security: &Security) -> Result<Self>

Like connect, with security given separately.

pub fn in_process(server: &Arc<Server>) -> Result<Self>

A client of server in this process, over a socket pair: no TLS or token (nothing leaves the process), a client’s scope (calls, no shards). The server’s side runs on the current Tokio runtime.

pub fn is_closed(&self) -> bool

Whether the connection is gone: the server closed it, or it broke. Calls on a closed client fail at once.

pub fn close(&self) -> Result<()>

Closes the transport and wakes calls waiting for replies.

pub fn call(&self, method: &str, args: &Value) -> Result<Value, Error>

Sends a call and waits for the worker’s answer.

pub fn complete(&self, token: &str, value: &Value) -> Result<(), Error>

Finishes an async completion from its token.

pub fn fail(&self, token: &str, error: &str) -> Result<(), Error>

pub fn start(&self, wtype: &str, id: &str, input: &Value) -> Result<(), Error>

pub fn start_with( &self, wtype: &str, id: &str, input: &Value, options: &StartOptions, ) -> Result<(), Error>

Starts or attaches to a workflow with the same options as an embedded worker.

pub fn update_with_start( &self, wtype: &str, id: &str, input: &Value, options: &StartOptions, name: &str, update_id: &str, arg: &Value, ) -> Result<Value, Error>

pub fn list_where(&self, filter: &Value, limit: usize) -> Result<Value, Error>

Runs matching filter, up to limit per shard, from every worker holding shards, in shard order. Fails at once if a shard has no holder right now.

pub fn list(&self, limit: usize) -> Result<Value, Error>

Runs, up to limit per shard, as list_where without a filter.

pub fn reset( &self, id: &str, before_step: &str, reapply_signals: bool, ) -> Result<(), Error>

pub fn signal(&self, id: &str, name: &str, value: &Value) -> Result<(), Error>

pub fn update( &self, id: &str, name: &str, update_id: &str, arg: &Value, ) -> Result<Value, Error>

pub fn query(&self, id: &str, name: &str, arg: &Value) -> Result<Value, Error>

pub fn object_call( &self, wtype: &str, key: &str, handler: &str, arg: &Value, call_id: &str, ) -> Result<Value, Error>

Calls handler handler of key key of object type wtype (see fusee::object) and waits for its durable result. Calls with the same call_id (empty: none) run once and get the recorded result.

pub fn object_send( &self, wtype: &str, key: &str, handler: &str, arg: &Value, call_id: &str, ) -> Result<(), Error>

object_call without waiting for the result: returns once the call is accepted.

pub fn object_state(&self, wtype: &str, key: &str) -> Result<Value, Error>

The committed state of key key of object type wtype ({} for a key never called).

pub fn result(&self, id: &str) -> Result<Value, Error>

pub fn cancel(&self, id: &str, reason: &str) -> Result<(), Error>

pub fn resume(&self, id: &str) -> Result<(), Error>

Resumes a paused run: its step runs again with a fresh retry budget.

pub fn terminate(&self, id: &str, reason: &str) -> Result<(), Error>

pub fn stream_read( &self, id: &str, run: Option<u64>, name: &str, from: u64, wait_ms: u64, ) -> Result<StreamBatch, Error>

One read of stream name of workflow id from offset from: the durable chunks there are, else those appended within wait_ms (at most a minute), and the end once the read has every chunk. run keeps reading the run an earlier read named. The worker holding the ID’s shard answers.

pub fn stream(&self, id: &str, name: &str, from: u64) -> ClientStream

A reader of stream name of workflow id from offset from: an iterator of chunks that blocks until each is durable and ends once the stream is complete. After a lost connection, a new reader from ClientStream::offset continues exactly there.

Trait Implementations

impl Clone for Client

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Client

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

Formats the value using the given formatter.