github.com/QuangHoangHao/kafka-go@v0.4.36/topics/list_topics.go (about)

     1  // Package topics is an experimental package that provides additional tooling
     2  // around Kafka Topics. This package does not make any promises around
     3  // backwards compatibility.
     4  package topics
     5  
     6  import (
     7  	"context"
     8  	"errors"
     9  	"regexp"
    10  
    11  	"github.com/QuangHoangHao/kafka-go"
    12  )
    13  
    14  // List returns a slice of all the Topics.
    15  func List(ctx context.Context, client *kafka.Client) (topics []kafka.Topic, err error) {
    16  	if client == nil {
    17  		return nil, errors.New("client is required")
    18  	}
    19  	response, err := client.Metadata(ctx, &kafka.MetadataRequest{
    20  		Addr: client.Addr,
    21  	})
    22  	if err != nil {
    23  		return nil, err
    24  	}
    25  
    26  	return response.Topics, nil
    27  }
    28  
    29  // ListRe returns a slice of Topics that match a regex.
    30  func ListRe(ctx context.Context, cli *kafka.Client, re *regexp.Regexp) (topics []kafka.Topic, err error) {
    31  	alltopics, err := List(ctx, cli)
    32  	if err != nil {
    33  		return nil, err
    34  	}
    35  
    36  	for _, val := range alltopics {
    37  		if re.MatchString(val.Name) {
    38  			topics = append(topics, val)
    39  		}
    40  	}
    41  	return topics, nil
    42  }