check if a stream exists

EventStoreDB
1

Hi,

whenever i try to read from or append to a stream if it does not exists it throws an exception. ¿Is there any way to check the existence of the stream before read or append, to avoid the exception?

2

It depends what you set the expected version to. If you say
Version.Any or 0 it will create the stream for you on append.

3

that will do for the appends but ¿for the reads?

4

Hi bogomez,

It’s a question about Exceptions vs Error Codes.

In our client API we throw exceptions to indicate errors/invalid usage.

Вівторок, 13 листопада 2012 р. 13:04:18 UTC+2 користувач bogomez написав:

5

We are considering possibility to add new method to api - [bool StreamExists]

for such purposes

Вівторок, 13 листопада 2012 р. 16:30:57 UTC+2 користувач taras.roshko написав:

6

Ok, thanks.

7

Hi again,

ReadEventStream[Forward/Backward] in dev branch now return EventStreamSlice with additional Status property which can be [Success, StreamDeleted, StreamNotFound],

no exceptions are thrown when stream does not exists or was deleted.

Вівторок, 13 листопада 2012 р. 16:59:21 UTC+2 користувач bogomez написав: