Consul golang api for watch

[Keshava Bharadwaj]

Hi,

I went through the consul api documentation to check for an api to do watch on a kv, and could not find one.

I had used node client earlier and its like this - https://github.com/silas/node-consul#watch

Is the 'Watch" api not available? or am i missing something?

- Keshava

[James Phillips]

Hi,

We could improve the documentation a bit around this, but watches are
definitely possible with the API. The basic workflow is that you do an
initial query, and then set the WaitIndex of your QueryOptions to that
index to block until things change. You can see an example here:

https://github.com/hashicorp/consul/blob/master/api/lock.go#L357-L384

And Consul's watches are implemented in terms of the API package as
well, you can see those here:

https://github.com/hashicorp/consul/blob/master/watch/funcs.go

-- James

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