使用常量初始化gocql ips

Question

This question already has an answer here:

• How can I pass a slice as a variadic input? 3 answers

I need to initialize gocql with multiple ips, I want to pass the ips from a variable/constant.

How to pass some thing like

gocql.NewCluster(ipvalues)

instead of using

gocql.NewCluster("127.0.0.1", "127.0.0.2")

i want to pass the list of ips through a variable something like an array.

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Answer 1

As you can see, gocql.NewCluser takes a variadic parameter, which means you can pass multiple values separated with commas to the function.

In go, you just need to make your ipvalues variable be a slice of strings and pass it like this:

ipvalues := []string{"127.0.0.1", "127.0.0.2"}

gocql.NewCluster(ipvalues...)

This will have the same effect as writing gocql.NewCluster("127.0.0.1", "127.0.0.2")

See the golang spec for more information on this feature