type Member struct {
   Name string `json:"name"`
   URL  string `json:"url"`
}

members = []Member{}

keyword := "r"
indexName : "member"
typeName := "_doc"
size := 10
ctx := context.Background()

searchSuggester := elastic.NewCompletionSuggester("data").Text(keyword).Field("suggest").Size(size)
searchSource := elastic.NewSearchSource().Suggester(searchSuggester) searchResult, err := client.Search().Index(indexName).Type(typeName).SearchSource(searchSource).Do(ctx)

for _, ops := range searchResult.Suggest["data"] {
   for _, op := range ops.Options {
      if op.Source == nil {
         continue
      }
      var member Member
      err := json.Unmarshal(*op.Source, &member)
      if err != nil {
         log.Println(err)
         continue
      }
      members = append(members, member)
   }
}