github.com/huaweicloud/golangsdk@v0.0.0-20210831081626-d823fe11ceba/openstack/ecs/v1/flavors/requests.go (about)

     1  package flavors
     2  
     3  import (
     4  	"github.com/huaweicloud/golangsdk"
     5  	"github.com/huaweicloud/golangsdk/pagination"
     6  )
     7  
     8  // ListOptsBuilder allows extensions to add additional parameters to the
     9  // List request.
    10  type ListOptsBuilder interface {
    11  	ToFlavorListMap() (string, error)
    12  }
    13  
    14  //ListOpts allows the filtering and sorting of paginated collections through the API.
    15  type ListOpts struct {
    16  	// Specifies the AZ name.
    17  	AvailabilityZone string `q:"availability_zone"`
    18  }
    19  
    20  // ToFlavorListMap formats a ListOpts into a query string.
    21  func (opts ListOpts) ToFlavorListMap() (string, error) {
    22  	s, err := golangsdk.BuildQueryString(opts)
    23  	if err != nil {
    24  		return "", err
    25  	}
    26  	return s.String(), err
    27  }
    28  
    29  // List returns a Pager which allows you to iterate over a collection of
    30  // flavors.
    31  func List(c *golangsdk.ServiceClient, opts ListOptsBuilder) pagination.Pager {
    32  	url := listURL(c)
    33  	if opts != nil {
    34  		queryString, err := opts.ToFlavorListMap()
    35  		if err != nil {
    36  			return pagination.Pager{Err: err}
    37  		}
    38  		url += queryString
    39  	}
    40  	return pagination.NewPager(c, url, func(r pagination.PageResult) pagination.Page {
    41  		return FlavorsPage{pagination.LinkedPageBase{PageResult: r}}
    42  	})
    43  }