A stream of messages to be read.
Messages can be awaited await reader.MoveNext(), that returns true
if there is a message available and false if there are no more messages
(i.e. the stream has been closed).
On the client side, the last invocation of MoveNext() either returns false
if the call has finished successfully or throws RpcException if call finished
with an error. Once the call finishes, subsequent invocations of MoveNext() will
continue yielding the same result (returning false or throwing an exception).
On the server side, MoveNext() does not throw exceptions.
In case of a failure, the request stream will appear to be finished
(MoveNext will return false) and the CancellationToken
associated with the call will be cancelled to signal the failure.
MoveNext() operations can be cancelled via a cancellation token. Cancelling
an individual read operation has the same effect as cancelling the entire call
(which will also result in the read operation returning prematurely), but the per-read cancellation
tokens passed to MoveNext() only result in cancelling the call if the read operation haven't finished
yet.
Task containing the result of the operation: true if the reader was successfully advanced
to the next element; false if the reader has passed the end of the sequence.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003e\u003ccode\u003eIAsyncStreamReader<T>\u003c/code\u003e is an interface for reading a stream of messages, where \u003ccode\u003eT\u003c/code\u003e represents the message type.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMoveNext()\u003c/code\u003e method is used to asynchronously advance the reader to the next message, returning \u003ccode\u003etrue\u003c/code\u003e if a message is available and \u003ccode\u003efalse\u003c/code\u003e if the stream is closed.\u003c/p\u003e\n"],["\u003cp\u003eOn the client side, \u003ccode\u003eMoveNext()\u003c/code\u003e returns \u003ccode\u003efalse\u003c/code\u003e if the call succeeds or throws \u003ccode\u003eRpcException\u003c/code\u003e if the call fails; on the server side, it returns \u003ccode\u003efalse\u003c/code\u003e in case of failure and does not throw any exception.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eMoveNext()\u003c/code\u003e operations can be cancelled using a \u003ccode\u003eCancellationToken\u003c/code\u003e, with cancellation of an individual read operation having the same effect as cancelling the entire call, if the read operation hasn't finished.\u003c/p\u003e\n"],["\u003cp\u003eThe Current property returns the current element from the stream, and the MoveNext method returns a boolean \u003ccode\u003eTask\u003c/code\u003e indicating if the next message has been found.\u003c/p\u003e\n"]]],[],null,[]]
