ugrpc::client::Reader< Response > Class Template Reference

#include <userver/ugrpc/client/stream.hpp>

Detailed Description

template<class Response>
class ugrpc::client::Reader< Response >

Client-side interface for server-streaming.

This class is not thread-safe except for GetContext.

The RPC should be completed by reading until ugrpc::client::Reader::Read returns false. If destroyed early, the RPC is cancelled. The server gets ugrpc::client::RpcInterruptedError and the abandoned-error metric is incremented. The connection stays open for reuse. gRPC provides no way to early-close a server-streaming RPC gracefully. See ugrpc::client::ReadRemainingAndFinish for graceful completion.

Definition at line 26 of file stream.hpp.

Public Member Functions
	Reader (Reader &&) noexcept=default
Reader &	operator= (Reader &&) noexcept=default
bool	Read (Response &response)
	Await and read the next incoming message.
CallContext &	GetContext ()
	Get call context, useful e.g. for accessing metadata.
const CallContext &	GetContext () const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Member Function Documentation

GetContext() [1/2]

template<class Response>

CallContext & ugrpc::client::Reader< Response >::GetContext ( )

inline

Get call context, useful e.g. for accessing metadata.

Definition at line 55 of file stream.hpp.

GetContext() [2/2]

template<class Response>

const CallContext & ugrpc::client::Reader< Response >::GetContext ( ) const

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 57 of file stream.hpp.

Read()

template<class Response>

bool ugrpc::client::Reader< Response >::Read ( Response & response )

inlinenodiscard

Await and read the next incoming message.

On end-of-input, Finish is called automatically.

Parameters

response

where to put response on success

Returns

true on success, false on end-of-input, task cancellation,

Exceptions

ugrpc::client::RpcError

on an RPC error

Definition at line 52 of file stream.hpp.

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The documentation for this class was generated from the following file:

• userver/ugrpc/client/stream.hpp