Documentation
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Index ¶
Constants ¶
const ( MAX_PAGE_SIZE = 1000 DEFAULT_LIMIT = 50 )
Variables ¶
This section is empty.
Functions ¶
func ApplyCursorToQuery ¶
func ApplyCursorToQuery[T Paginatable](query *bun.SelectQuery, r *CursorRequest, model T, order OrderDirection) (*bun.SelectQuery, error)
ApplyCursorToQuery adds cursor-based pagination to a bun query based on the Paginatable model. The order parameter is of type OrderDirection, ensuring that only valid order directions are used.
func EncodeCursor ¶
EncodeCursor creates a base64 encoded cursor from a Cursor struct
Types ¶
type Cursor ¶
type Cursor struct {
SortField string `json:"sort_field"`
SortValue interface{} `json:"sort_value"`
UniqueField string `json:"unique_field"`
UniqueValue interface{} `json:"unique_value"`
}
Cursor holds the values needed for pagination
func DecodeCursor ¶
DecodeCursor decodes a base64 encoded cursor string into a Cursor struct
type CursorRequest ¶
type CursorRequest struct {
Limit int `json:"limit"`
Cursor string `json:"cursor"`
Filter []query.Filter `json:"filters,omitempty"`
}
CursorRequest represents a cursor paginated request
func (*CursorRequest) Validate ¶
func (r *CursorRequest) Validate() error
type CursorResponse ¶
type CursorResponse struct {
NextCursor string `json:"next_cursor,omitempty"`
HasNextPage bool `json:"has_next_page"`
Hash string `json:"hash,omitempty"` // SHA-256 hash of the items for data freshness validation
// contains filtered or unexported fields
}
CursorResponse represents a cursor paginated response
func BuildCursorResponse ¶
func BuildCursorResponse[T Paginatable](items []T, limit int) (*CursorResponse, error)
BuildCursorResponse processes the query results and creates a paginated response
func (*CursorResponse) GetItems ¶
func (r *CursorResponse) GetItems() interface{}
GetItems returns the underlying items of the response
type OrderDirection ¶
type OrderDirection string
OrderDirection represents the allowed direction for pagination.
const ( ASC OrderDirection = "asc" DESC OrderDirection = "desc" )
type Paginatable ¶
type Paginatable interface {
GetSortField() string // Returns sort field name without table prefix
GetSortValue() interface{} // Returns the value for the sort field
GetUniqueField() string // Returns unique field name without table prefix
GetUniqueValue() interface{} // Returns the value for the unique field
}
Paginatable interface that models must implement to use pagination
Source Files