Consul v0.1.5 Consul.Watch
Consul provides a blocking
query that allows you to watch for changes on
some endpoints. These are noted in the official consul documentation.
The default time that consul will wait before sending a response is 5 minutes. After that the query will return even if there hasn’t been a change.
This module is the beginning of supporting these blocking queries at a higher
level than using the Raw client directly. Consul.Watch
wraps the query in a
Task
that can be used to retrieve the value whenever it returns.
The best way to use these tasks is probably going to be via Task.yield/2
and friends. You can yield over and over again. If the query hasn’t returned
the yield will return nil
. If the query has returned then it will return
{:ok, %Consul.KV{}}
. Refer to the Task
docs for more information on
working with Task
s.
Summary
Functions
Create a task representing a blocking KV request
Create a task representing a blocking KV request
Functions
Create a task representing a blocking KV request.