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Enhanced consumer: use NSQLookupd
The above example hardcoded the ip of nsqd into the consumer code, which is not a best practice. A better way to go about it is to point the consumer at nsqlookupd, which will transparently connect to the appropriate nsqd that happens to be publishing that topic.
In our example, we only have a single nsqd, so it’s an extraneous lookup. But it’s good to get into the right habits early, especially if you are a habitual copy/paster.
The consumer example only needs a one-line change to get this enhancement:
err := q.ConnectToNSQLookupd("127.0.0.1:4161")
Which will connect to the HTTP port of nsqlookupd.