Storing slice of bytes in Cassandra using gocql driver

How to store slice of bytes as cassandra blob type using gocql driver?

Your question is very unspecific and you do not show us what you have done so far.

Since I don't know where your actual problem lies I will just post my WriteRecord function I wrote a while back when testing cassandra with the gocql package:

func (cs *cassandra) WriteRecord(table string, fields []string, values ...interface{}) error {
    var placeholder []string

    for range fields {
        placeholder = append(placeholder, "?")
    }
    querystring := fmt.Sprintf(insertstring, table, strings.Join(fields, ", "), strings.Join(placeholder, ", "))
    return cassandraSession.Query(querystring, values...).Exec()
}

As you can see the values are of type interface{}. So they can be anything including of type []byte. Note that the following condition must be met: len(fields) = len(values)

I hope this helps you on your journey of becoming a golang expert :)