native

Documentation

Index

• Constants
• Variables
• func NewCompleteTagsHandler(opts options.HandlerOptions) http.Handler
• func NewListTagsHandler(opts options.HandlerOptions) http.Handler
• func NewPromParseHandler(opts options.HandlerOptions) http.Handler
• func NewPromReadHandler(opts options.HandlerOptions) http.Handler
• func NewPromReadInstantHandler(opts options.HandlerOptions) http.Handler
• func NewPromThresholdHandler(opts options.HandlerOptions) http.Handler
• func RenderResultsJSON(w io.Writer, result ReadResult, opts RenderResultsOptions) error
• type CompleteTagsHandler
  • func (h *CompleteTagsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
• type FunctionNode
  • func (n FunctionNode) QueryRepresentation() (QueryRepresentation, error)
  • func (n FunctionNode) String() string
• type ListTagsHandler
  • func (h *ListTagsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
• type ParsedOptions
  • func ParseRequest(ctx context.Context, r *http.Request, instantaneous bool, ...) (ParsedOptions, *xhttp.ParseError)
• type QueryRepresentation
• type ReadResponse
• type ReadResult
• type RenderResultsOptions
• type Threshold

Constants

const (
	// CompleteTagsURL is the url for searching tags.
	CompleteTagsURL = handler.RoutePrefixV1 + "/search"

	// CompleteTagsHTTPMethod is the HTTP method used with this resource.
	CompleteTagsHTTPMethod = http.MethodGet
)

const (
	// PromParseURL is the url for native prom parse handler, this parses out the
	// query and returns a JSON representation of the execution DAG.
	PromParseURL = handler.RoutePrefixV1 + "/parse"

	// PromParseHTTPMethod is the HTTP method used with this resource.
	PromParseHTTPMethod = http.MethodGet
)

const (
	// PromThresholdURL is the url for native prom threshold handler, this  parses
	// out the  query and returns a JSON representation of the execution DAG.
	PromThresholdURL = handler.RoutePrefixV1 + "/threshold"

	// PromThresholdHTTPMethod is the HTTP method used with this resource.
	PromThresholdHTTPMethod = http.MethodGet
)

const (
	// PromReadURL is the url for native prom read handler, this matches the
	// default URL for the query range endpoint found on a Prometheus server.
	PromReadURL = handler.RoutePrefixV1 + "/query_range"

	// PromReadInstantURL is the url for native instantaneous prom read
	// handler, this matches the  default URL for the query endpoint
	// found on a Prometheus server.
	PromReadInstantURL = handler.RoutePrefixV1 + "/query"
)

const (
	// ListTagsURL is the url for listing tags.
	ListTagsURL = handler.RoutePrefixV1 + "/labels"
)

Variables

var (
	// PromReadHTTPMethods are the HTTP methods for the read handler.
	PromReadHTTPMethods = []string{
		http.MethodGet,
		http.MethodPost,
	}

	// PromReadInstantHTTPMethods are the HTTP methods for the instant handler.
	PromReadInstantHTTPMethods = []string{
		http.MethodGet,
		http.MethodPost,
	}
)

var (
	// ListTagsHTTPMethods are the HTTP methods for this handler.
	ListTagsHTTPMethods = []string{http.MethodGet, http.MethodPost}
)

Functions

func NewCompleteTagsHandler

func NewCompleteTagsHandler(opts options.HandlerOptions) http.Handler

NewCompleteTagsHandler returns a new instance of handler.

func NewListTagsHandler

func NewListTagsHandler(opts options.HandlerOptions) http.Handler

NewListTagsHandler returns a new instance of handler.

func NewPromParseHandler

func NewPromParseHandler(opts options.HandlerOptions) http.Handler

NewPromParseHandler returns a new instance of handler.

func NewPromReadHandler

func NewPromReadHandler(opts options.HandlerOptions) http.Handler

NewPromReadHandler returns a new prometheus-compatible read handler.

func NewPromReadInstantHandler

func NewPromReadInstantHandler(opts options.HandlerOptions) http.Handler

NewPromReadInstantHandler returns a new pro instance of handler.

func NewPromThresholdHandler

func NewPromThresholdHandler(opts options.HandlerOptions) http.Handler

NewPromThresholdHandler returns a new instance of handler.

func RenderResultsJSON

func RenderResultsJSON(
	w io.Writer,
	result ReadResult,
	opts RenderResultsOptions,
) error

RenderResultsJSON renders results in JSON for range queries.

Types

type CompleteTagsHandler

type CompleteTagsHandler struct {
	// contains filtered or unexported fields
}

CompleteTagsHandler represents a handler for search tags endpoint.

func (*CompleteTagsHandler) ServeHTTP

func (h *CompleteTagsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type FunctionNode

type FunctionNode struct {
	// Name is the name of the function node.
	Name string `json:"name,omitempty"`
	// Children are any children this function node has.
	Children []FunctionNode `json:"children,omitempty"`
	// contains filtered or unexported fields
}

FunctionNode is a JSON representation of a function.

func (FunctionNode) QueryRepresentation

func (n FunctionNode) QueryRepresentation() (QueryRepresentation, error)

QueryRepresentation gives the query representation of the function node.

func (FunctionNode) String

func (n FunctionNode) String() string

String prints the string representation of a function node.

type ListTagsHandler

type ListTagsHandler struct {
	// contains filtered or unexported fields
}

ListTagsHandler represents a handler for list tags endpoint.

func (*ListTagsHandler) ServeHTTP

func (h *ListTagsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ParsedOptions

type ParsedOptions struct {
	QueryOpts     *executor.QueryOptions
	FetchOpts     *storage.FetchOptions
	Params        models.RequestParams
	CancelWatcher handler.CancelWatcher
}

ParsedOptions are parsed options for the query.

func ParseRequest

func ParseRequest(
	ctx context.Context,
	r *http.Request,
	instantaneous bool,
	opts options.HandlerOptions,
) (ParsedOptions, *xhttp.ParseError)

ParseRequest parses the given request.

type QueryRepresentation

type QueryRepresentation struct {
	// Query is the non-threshold part of a query.
	Query FunctionNode `json:"query,omitempty"`
	// Threshold is any detected threshold (top level comparison functions).
	// NB: this is a pointer so it does not have to be present in output if unset.
	Thresold *Threshold `json:"threshold,omitempty"`
}

QueryRepresentation is a JSON representation of a query after attempting to extract any threshold-specific parameters.

NB: this is always presented with the threshold value (if present) as appearing on the right of the query. e.g. `1 > up` will instead be inverted to `up < 1`

type ReadResponse

type ReadResponse struct {
	Results []ts.Series `json:"results,omitempty"`
}

ReadResponse is the response that gets returned to the user

type ReadResult

type ReadResult struct {
	Series    []*ts.Series
	Meta      block.ResultMetadata
	BlockType block.BlockType
}

ReadResult is a result from a remote read.

type RenderResultsOptions

type RenderResultsOptions struct {
	KeepNaNs bool
	Start    time.Time
	End      time.Time
}

RenderResultsOptions is a set of options for rendering the result.

type Threshold

type Threshold struct {
	// Comparator is the threshold comparator.
	Comparator string `json:"comparator"`
	// Value is the threshold value.
	Value float64 `json:"value"`
}

Threshold is a JSON representation of a threshold, represented by a top level comparison function.