oas_handlers_gen.go

// Code generated by ogen, DO NOT EDIT.

package promapi

import (
	"context"
	"net/http"
	"time"

	"github.com/go-faster/errors"
	"go.opentelemetry.io/otel/attribute"
	"go.opentelemetry.io/otel/codes"
	"go.opentelemetry.io/otel/metric"
	semconv "go.opentelemetry.io/otel/semconv/v1.19.0"
	"go.opentelemetry.io/otel/trace"

	ht "github.com/ogen-go/ogen/http"
	"github.com/ogen-go/ogen/middleware"
	"github.com/ogen-go/ogen/ogenerrors"
	"github.com/ogen-go/ogen/otelogen"
)

// handleGetLabelValuesRequest handles getLabelValues operation.
//
// GET /api/v1/label/{label}/values
func (s *Server) handleGetLabelValuesRequest(args [1]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getLabelValues"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/label/{label}/values"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetLabelValues",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetLabelValues",
			ID:   "getLabelValues",
		}
	)
	params, err := decodeGetLabelValuesParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *LabelValuesResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetLabelValues",
			OperationID:   "getLabelValues",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "label",
					In:   "path",
				}: params.Label,
				{
					Name: "start",
					In:   "query",
				}: params.Start,
				{
					Name: "end",
					In:   "query",
				}: params.End,
				{
					Name: "match[]",
					In:   "query",
				}: params.Match,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetLabelValuesParams
			Response = *LabelValuesResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetLabelValuesParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetLabelValues(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetLabelValues(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetLabelValuesResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetLabelsRequest handles getLabels operation.
//
// GET /api/v1/labels
func (s *Server) handleGetLabelsRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getLabels"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/labels"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetLabels",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetLabels",
			ID:   "getLabels",
		}
	)
	params, err := decodeGetLabelsParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *LabelsResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetLabels",
			OperationID:   "getLabels",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "start",
					In:   "query",
				}: params.Start,
				{
					Name: "end",
					In:   "query",
				}: params.End,
				{
					Name: "match[]",
					In:   "query",
				}: params.Match,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetLabelsParams
			Response = *LabelsResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetLabelsParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetLabels(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetLabels(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetLabelsResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetMetadataRequest handles getMetadata operation.
//
// GET /api/v1/metadata
func (s *Server) handleGetMetadataRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getMetadata"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/metadata"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetMetadata",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetMetadata",
			ID:   "getMetadata",
		}
	)
	params, err := decodeGetMetadataParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *MetadataResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetMetadata",
			OperationID:   "getMetadata",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "limit",
					In:   "query",
				}: params.Limit,
				{
					Name: "limit_per_metric",
					In:   "query",
				}: params.LimitPerMetric,
				{
					Name: "metric",
					In:   "query",
				}: params.Metric,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetMetadataParams
			Response = *MetadataResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetMetadataParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetMetadata(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetMetadata(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetMetadataResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetQueryRequest handles getQuery operation.
//
// Query Prometheus.
//
// GET /api/v1/query
func (s *Server) handleGetQueryRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getQuery"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/query"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetQuery",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetQuery",
			ID:   "getQuery",
		}
	)
	params, err := decodeGetQueryParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *QueryResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetQuery",
			OperationID:   "getQuery",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "query",
					In:   "query",
				}: params.Query,
				{
					Name: "time",
					In:   "query",
				}: params.Time,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetQueryParams
			Response = *QueryResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetQueryParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetQuery(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetQuery(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetQueryResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetQueryExemplarsRequest handles getQueryExemplars operation.
//
// Query Prometheus.
//
// GET /api/v1/query_exemplars
func (s *Server) handleGetQueryExemplarsRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getQueryExemplars"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/query_exemplars"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetQueryExemplars",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetQueryExemplars",
			ID:   "getQueryExemplars",
		}
	)
	params, err := decodeGetQueryExemplarsParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *QueryExemplarsResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetQueryExemplars",
			OperationID:   "getQueryExemplars",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "query",
					In:   "query",
				}: params.Query,
				{
					Name: "start",
					In:   "query",
				}: params.Start,
				{
					Name: "end",
					In:   "query",
				}: params.End,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetQueryExemplarsParams
			Response = *QueryExemplarsResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetQueryExemplarsParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetQueryExemplars(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetQueryExemplars(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetQueryExemplarsResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetQueryRangeRequest handles getQueryRange operation.
//
// Query Prometheus.
//
// GET /api/v1/query_range
func (s *Server) handleGetQueryRangeRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getQueryRange"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/query_range"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetQueryRange",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetQueryRange",
			ID:   "getQueryRange",
		}
	)
	params, err := decodeGetQueryRangeParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *QueryResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetQueryRange",
			OperationID:   "getQueryRange",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "query",
					In:   "query",
				}: params.Query,
				{
					Name: "start",
					In:   "query",
				}: params.Start,
				{
					Name: "end",
					In:   "query",
				}: params.End,
				{
					Name: "step",
					In:   "query",
				}: params.Step,
				{
					Name: "timeout",
					In:   "query",
				}: params.Timeout,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetQueryRangeParams
			Response = *QueryResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetQueryRangeParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetQueryRange(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetQueryRange(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetQueryRangeResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetRulesRequest handles getRules operation.
//
// GET /api/v1/rules
func (s *Server) handleGetRulesRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getRules"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/rules"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetRules",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetRules",
			ID:   "getRules",
		}
	)
	params, err := decodeGetRulesParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *RulesResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetRules",
			OperationID:   "getRules",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "type",
					In:   "query",
				}: params.Type,
				{
					Name: "rule_name[]",
					In:   "query",
				}: params.RuleName,
				{
					Name: "rule_group[]",
					In:   "query",
				}: params.RuleGroup,
				{
					Name: "file[]",
					In:   "query",
				}: params.File,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetRulesParams
			Response = *RulesResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetRulesParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetRules(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetRules(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetRulesResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handleGetSeriesRequest handles getSeries operation.
//
// Query Prometheus.
//
// GET /api/v1/series
func (s *Server) handleGetSeriesRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("getSeries"),
		semconv.HTTPMethodKey.String("GET"),
		semconv.HTTPRouteKey.String("/api/v1/series"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "GetSeries",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "GetSeries",
			ID:   "getSeries",
		}
	)
	params, err := decodeGetSeriesParams(args, argsEscaped, r)
	if err != nil {
		err = &ogenerrors.DecodeParamsError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeParams", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}

	var response *SeriesResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "GetSeries",
			OperationID:   "getSeries",
			Body:          nil,
			Params: middleware.Parameters{
				{
					Name: "start",
					In:   "query",
				}: params.Start,
				{
					Name: "end",
					In:   "query",
				}: params.End,
				{
					Name: "match[]",
					In:   "query",
				}: params.Match,
			},
			Raw: r,
		}

		type (
			Request  = struct{}
			Params   = GetSeriesParams
			Response = *SeriesResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			unpackGetSeriesParams,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.GetSeries(ctx, params)
				return response, err
			},
		)
	} else {
		response, err = s.h.GetSeries(ctx, params)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodeGetSeriesResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handlePostLabelsRequest handles postLabels operation.
//
// POST /api/v1/labels
func (s *Server) handlePostLabelsRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("postLabels"),
		semconv.HTTPMethodKey.String("POST"),
		semconv.HTTPRouteKey.String("/api/v1/labels"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "PostLabels",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err error
	)

	var response *LabelsResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "PostLabels",
			OperationID:   "postLabels",
			Body:          nil,
			Params:        middleware.Parameters{},
			Raw:           r,
		}

		type (
			Request  = struct{}
			Params   = struct{}
			Response = *LabelsResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			nil,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.PostLabels(ctx)
				return response, err
			},
		)
	} else {
		response, err = s.h.PostLabels(ctx)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodePostLabelsResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handlePostQueryRequest handles postQuery operation.
//
// Query Prometheus.
//
// POST /api/v1/query
func (s *Server) handlePostQueryRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("postQuery"),
		semconv.HTTPMethodKey.String("POST"),
		semconv.HTTPRouteKey.String("/api/v1/query"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "PostQuery",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "PostQuery",
			ID:   "postQuery",
		}
	)
	request, close, err := s.decodePostQueryRequest(r)
	if err != nil {
		err = &ogenerrors.DecodeRequestError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeRequest", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
	defer func() {
		if err := close(); err != nil {
			recordError("CloseRequest", err)
		}
	}()

	var response *QueryResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "PostQuery",
			OperationID:   "postQuery",
			Body:          request,
			Params:        middleware.Parameters{},
			Raw:           r,
		}

		type (
			Request  = *QueryForm
			Params   = struct{}
			Response = *QueryResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			nil,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.PostQuery(ctx, request)
				return response, err
			},
		)
	} else {
		response, err = s.h.PostQuery(ctx, request)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodePostQueryResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handlePostQueryExemplarsRequest handles postQueryExemplars operation.
//
// Query Prometheus.
//
// POST /api/v1/query_exemplars
func (s *Server) handlePostQueryExemplarsRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("postQueryExemplars"),
		semconv.HTTPMethodKey.String("POST"),
		semconv.HTTPRouteKey.String("/api/v1/query_exemplars"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "PostQueryExemplars",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err error
	)

	var response *QueryExemplarsResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "PostQueryExemplars",
			OperationID:   "postQueryExemplars",
			Body:          nil,
			Params:        middleware.Parameters{},
			Raw:           r,
		}

		type (
			Request  = struct{}
			Params   = struct{}
			Response = *QueryExemplarsResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			nil,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.PostQueryExemplars(ctx)
				return response, err
			},
		)
	} else {
		response, err = s.h.PostQueryExemplars(ctx)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodePostQueryExemplarsResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handlePostQueryRangeRequest handles postQueryRange operation.
//
// Query Prometheus.
//
// POST /api/v1/query_range
func (s *Server) handlePostQueryRangeRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("postQueryRange"),
		semconv.HTTPMethodKey.String("POST"),
		semconv.HTTPRouteKey.String("/api/v1/query_range"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "PostQueryRange",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err          error
		opErrContext = ogenerrors.OperationContext{
			Name: "PostQueryRange",
			ID:   "postQueryRange",
		}
	)
	request, close, err := s.decodePostQueryRangeRequest(r)
	if err != nil {
		err = &ogenerrors.DecodeRequestError{
			OperationContext: opErrContext,
			Err:              err,
		}
		recordError("DecodeRequest", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
	defer func() {
		if err := close(); err != nil {
			recordError("CloseRequest", err)
		}
	}()

	var response *QueryResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "PostQueryRange",
			OperationID:   "postQueryRange",
			Body:          request,
			Params:        middleware.Parameters{},
			Raw:           r,
		}

		type (
			Request  = *QueryRangeForm
			Params   = struct{}
			Response = *QueryResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			nil,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.PostQueryRange(ctx, request)
				return response, err
			},
		)
	} else {
		response, err = s.h.PostQueryRange(ctx, request)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodePostQueryRangeResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}

// handlePostSeriesRequest handles postSeries operation.
//
// Query Prometheus.
//
// POST /api/v1/series
func (s *Server) handlePostSeriesRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
	otelAttrs := []attribute.KeyValue{
		otelogen.OperationID("postSeries"),
		semconv.HTTPMethodKey.String("POST"),
		semconv.HTTPRouteKey.String("/api/v1/series"),
	}

	// Start a span for this request.
	ctx, span := s.cfg.Tracer.Start(r.Context(), "PostSeries",
		trace.WithAttributes(otelAttrs...),
		serverSpanKind,
	)
	defer span.End()

	// Run stopwatch.
	startTime := time.Now()
	defer func() {
		elapsedDuration := time.Since(startTime)
		// Use floating point division here for higher precision (instead of Millisecond method).
		s.duration.Record(ctx, float64(float64(elapsedDuration)/float64(time.Millisecond)), metric.WithAttributes(otelAttrs...))
	}()

	// Increment request counter.
	s.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))

	var (
		recordError = func(stage string, err error) {
			span.RecordError(err)
			span.SetStatus(codes.Error, stage)
			s.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
		}
		err error
	)

	var response *SeriesResponse
	if m := s.cfg.Middleware; m != nil {
		mreq := middleware.Request{
			Context:       ctx,
			OperationName: "PostSeries",
			OperationID:   "postSeries",
			Body:          nil,
			Params:        middleware.Parameters{},
			Raw:           r,
		}

		type (
			Request  = struct{}
			Params   = struct{}
			Response = *SeriesResponse
		)
		response, err = middleware.HookMiddleware[
			Request,
			Params,
			Response,
		](
			m,
			mreq,
			nil,
			func(ctx context.Context, request Request, params Params) (response Response, err error) {
				response, err = s.h.PostSeries(ctx)
				return response, err
			},
		)
	} else {
		response, err = s.h.PostSeries(ctx)
	}
	if err != nil {
		recordError("Internal", err)
		if errRes, ok := errors.Into[*FailStatusCode](err); ok {
			encodeErrorResponse(errRes, w, span)
			return
		}
		if errors.Is(err, ht.ErrNotImplemented) {
			s.cfg.ErrorHandler(ctx, w, r, err)
			return
		}
		encodeErrorResponse(s.h.NewError(ctx, err), w, span)
		return
	}

	if err := encodePostSeriesResponse(response, w, span); err != nil {
		recordError("EncodeResponse", err)
		s.cfg.ErrorHandler(ctx, w, r, err)
		return
	}
}