feat: predictions

pkg/rest/oas_client_gen.go

@@ -33,6 +33,12 @@ type Invoker interface {
 	//
 	// POST /api/v1/prediction
 	PerformPrediction(ctx context.Context, request OptPredictionParameters, params PerformPredictionParams) (*PredictionResult, error)
+	// ReadinessCheck invokes readinessCheck operation.
+	//
+	// Readiness check.
+	//
+	// GET /ready
+	ReadinessCheck(ctx context.Context) (*ReadinessResponse, error)
 }
 
 // Client implements OAS client.
@@ -177,3 +183,75 @@ func (c *Client) sendPerformPrediction(ctx context.Context, request OptPredictio
 
 	return result, nil
 }
+
+// ReadinessCheck invokes readinessCheck operation.
+//
+// Readiness check.
+//
+// GET /ready
+func (c *Client) ReadinessCheck(ctx context.Context) (*ReadinessResponse, error) {
+	res, err := c.sendReadinessCheck(ctx)
+	return res, err
+}
+
+func (c *Client) sendReadinessCheck(ctx context.Context) (res *ReadinessResponse, err error) {
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("readinessCheck"),
+		semconv.HTTPRequestMethodKey.String("GET"),
+		semconv.HTTPRouteKey.String("/ready"),
+	}
+
+	// Run stopwatch.
+	startTime := time.Now()
+	defer func() {
+		// Use floating point division here for higher precision (instead of Millisecond method).
+		elapsedDuration := time.Since(startTime)
+		c.duration.Record(ctx, float64(elapsedDuration)/float64(time.Millisecond), metric.WithAttributes(otelAttrs...))
+	}()
+
+	// Increment request counter.
+	c.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
+
+	// Start a span for this request.
+	ctx, span := c.cfg.Tracer.Start(ctx, ReadinessCheckOperation,
+		trace.WithAttributes(otelAttrs...),
+		clientSpanKind,
+	)
+	// Track stage for error reporting.
+	var stage string
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			span.SetStatus(codes.Error, stage)
+			c.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
+		}
+		span.End()
+	}()
+
+	stage = "BuildURL"
+	u := uri.Clone(c.requestURL(ctx))
+	var pathParts [1]string
+	pathParts[0] = "/ready"
+	uri.AddPathParts(u, pathParts[:]...)
+
+	stage = "EncodeRequest"
+	r, err := ht.NewRequest(ctx, "GET", u)
+	if err != nil {
+		return res, errors.Wrap(err, "create request")
+	}
+
+	stage = "SendRequest"
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	stage = "DecodeResponse"
+	result, err := decodeReadinessCheckResponse(resp)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}

pkg/rest/oas_handlers_gen.go

@@ -193,3 +193,133 @@ func (s *Server) handlePerformPredictionRequest(args [0]string, argsEscaped bool
 		return
 	}
 }
+
+// handleReadinessCheckRequest handles readinessCheck operation.
+//
+// Readiness check.
+//
+// GET /ready
+func (s *Server) handleReadinessCheckRequest(args [0]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
+	statusWriter := &codeRecorder{ResponseWriter: w}
+	w = statusWriter
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("readinessCheck"),
+		semconv.HTTPRequestMethodKey.String("GET"),
+		semconv.HTTPRouteKey.String("/ready"),
+	}
+
+	// Start a span for this request.
+	ctx, span := s.cfg.Tracer.Start(r.Context(), ReadinessCheckOperation,
+		trace.WithAttributes(otelAttrs...),
+		serverSpanKind,
+	)
+	defer span.End()
+
+	// Add Labeler to context.
+	labeler := &Labeler{attrs: otelAttrs}
+	ctx = contextWithLabeler(ctx, labeler)
+
+	// Run stopwatch.
+	startTime := time.Now()
+	defer func() {
+		elapsedDuration := time.Since(startTime)
+
+		attrSet := labeler.AttributeSet()
+		attrs := attrSet.ToSlice()
+		code := statusWriter.status
+		if code != 0 {
+			codeAttr := semconv.HTTPResponseStatusCode(code)
+			attrs = append(attrs, codeAttr)
+			span.SetAttributes(codeAttr)
+		}
+		attrOpt := metric.WithAttributes(attrs...)
+
+		// Increment request counter.
+		s.requests.Add(ctx, 1, attrOpt)
+
+		// Use floating point division here for higher precision (instead of Millisecond method).
+		s.duration.Record(ctx, float64(elapsedDuration)/float64(time.Millisecond), attrOpt)
+	}()
+
+	var (
+		recordError = func(stage string, err error) {
+			span.RecordError(err)
+
+			// https://opentelemetry.io/docs/specs/semconv/http/http-spans/#status
+			// Span Status MUST be left unset if HTTP status code was in the 1xx, 2xx or 3xx ranges,
+			// unless there was another error (e.g., network error receiving the response body; or 3xx codes with
+			// max redirects exceeded), in which case status MUST be set to Error.
+			code := statusWriter.status
+			if code >= 100 && code < 500 {
+				span.SetStatus(codes.Error, stage)
+			}
+
+			attrSet := labeler.AttributeSet()
+			attrs := attrSet.ToSlice()
+			if code != 0 {
+				attrs = append(attrs, semconv.HTTPResponseStatusCode(code))
+			}
+
+			s.errors.Add(ctx, 1, metric.WithAttributes(attrs...))
+		}
+		err error
+	)
+
+	var response *ReadinessResponse
+	if m := s.cfg.Middleware; m != nil {
+		mreq := middleware.Request{
+			Context:          ctx,
+			OperationName:    ReadinessCheckOperation,
+			OperationSummary: "Readiness check",
+			OperationID:      "readinessCheck",
+			Body:             nil,
+			Params:           middleware.Parameters{},
+			Raw:              r,
+		}
+
+		type (
+			Request  = struct{}
+			Params   = struct{}
+			Response = *ReadinessResponse
+		)
+		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.ReadinessCheck(ctx)
+				return response, err
+			},
+		)
+	} else {
+		response, err = s.h.ReadinessCheck(ctx)
+	}
+	if err != nil {
+		if errRes, ok := errors.Into[*ErrorStatusCode](err); ok {
+			if err := encodeErrorResponse(errRes, w, span); err != nil {
+				defer recordError("Internal", err)
+			}
+			return
+		}
+		if errors.Is(err, ht.ErrNotImplemented) {
+			s.cfg.ErrorHandler(ctx, w, r, err)
+			return
+		}
+		if err := encodeErrorResponse(s.h.NewError(ctx, err), w, span); err != nil {
+			defer recordError("Internal", err)
+		}
+		return
+	}
+
+	if err := encodeReadinessCheckResponse(response, w, span); err != nil {
+		defer recordError("EncodeResponse", err)
+		if !errors.Is(err, ht.ErrInternalServerErrorResponse) {
+			s.cfg.ErrorHandler(ctx, w, r, err)
+		}
+		return
+	}
+}

pkg/rest/oas_json_gen.go

@@ -1154,24 +1154,127 @@ func (s *PredictionResultPredictionItemTrajectoryItem) Encode(e *jx.Encoder) {
 
 // encodeFields encodes fields.
 func (s *PredictionResultPredictionItemTrajectoryItem) encodeFields(e *jx.Encoder) {
+	{
+		e.FieldStart("datetime")
+		json.EncodeDateTime(e, s.Datetime)
+	}
+	{
+		e.FieldStart("latitude")
+		e.Float64(s.Latitude)
+	}
+	{
+		e.FieldStart("longitude")
+		e.Float64(s.Longitude)
+	}
+	{
+		e.FieldStart("altitude")
+		e.Float64(s.Altitude)
+	}
 }
 
-var jsonFieldsNameOfPredictionResultPredictionItemTrajectoryItem = [0]string{}
+var jsonFieldsNameOfPredictionResultPredictionItemTrajectoryItem = [4]string{
+	0: "datetime",
+	1: "latitude",
+	2: "longitude",
+	3: "altitude",
+}
 
 // Decode decodes PredictionResultPredictionItemTrajectoryItem from json.
 func (s *PredictionResultPredictionItemTrajectoryItem) Decode(d *jx.Decoder) error {
 	if s == nil {
 		return errors.New("invalid: unable to decode PredictionResultPredictionItemTrajectoryItem to nil")
 	}
+	var requiredBitSet [1]uint8
 
 	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
 		switch string(k) {
+		case "datetime":
+			requiredBitSet[0] |= 1 << 0
+			if err := func() error {
+				v, err := json.DecodeDateTime(d)
+				s.Datetime = v
+				if err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"datetime\"")
+			}
+		case "latitude":
+			requiredBitSet[0] |= 1 << 1
+			if err := func() error {
+				v, err := d.Float64()
+				s.Latitude = float64(v)
+				if err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"latitude\"")
+			}
+		case "longitude":
+			requiredBitSet[0] |= 1 << 2
+			if err := func() error {
+				v, err := d.Float64()
+				s.Longitude = float64(v)
+				if err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"longitude\"")
+			}
+		case "altitude":
+			requiredBitSet[0] |= 1 << 3
+			if err := func() error {
+				v, err := d.Float64()
+				s.Altitude = float64(v)
+				if err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"altitude\"")
+			}
 		default:
 			return d.Skip()
 		}
+		return nil
 	}); err != nil {
 		return errors.Wrap(err, "decode PredictionResultPredictionItemTrajectoryItem")
 	}
+	// Validate required fields.
+	var failures []validate.FieldError
+	for i, mask := range [1]uint8{
+		0b00001111,
+	} {
+		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
+			// Mask only required fields and check equality to mask using XOR.
+			//
+			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
+			// Bits of fields which would be set are actually bits of missed fields.
+			missed := bits.OnesCount8(result)
+			for bitN := 0; bitN < missed; bitN++ {
+				bitIdx := bits.TrailingZeros8(result)
+				fieldIdx := i*8 + bitIdx
+				var name string
+				if fieldIdx < len(jsonFieldsNameOfPredictionResultPredictionItemTrajectoryItem) {
+					name = jsonFieldsNameOfPredictionResultPredictionItemTrajectoryItem[fieldIdx]
+				} else {
+					name = strconv.Itoa(fieldIdx)
+				}
+				failures = append(failures, validate.FieldError{
+					Name:  name,
+					Error: validate.ErrFieldRequired,
+				})
+				// Reset bit.
+				result &^= 1 << bitIdx
+			}
+		}
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
 
 	return nil
 }
@@ -1188,3 +1291,190 @@ func (s *PredictionResultPredictionItemTrajectoryItem) UnmarshalJSON(data []byte
 	d := jx.DecodeBytes(data)
 	return s.Decode(d)
 }
+
+// Encode implements json.Marshaler.
+func (s *ReadinessResponse) Encode(e *jx.Encoder) {
+	e.ObjStart()
+	s.encodeFields(e)
+	e.ObjEnd()
+}
+
+// encodeFields encodes fields.
+func (s *ReadinessResponse) encodeFields(e *jx.Encoder) {
+	{
+		e.FieldStart("status")
+		s.Status.Encode(e)
+	}
+	{
+		if s.LastUpdate.Set {
+			e.FieldStart("last_update")
+			s.LastUpdate.Encode(e, json.EncodeDateTime)
+		}
+	}
+	{
+		if s.IsFresh.Set {
+			e.FieldStart("is_fresh")
+			s.IsFresh.Encode(e)
+		}
+	}
+	{
+		if s.ErrorMessage.Set {
+			e.FieldStart("error_message")
+			s.ErrorMessage.Encode(e)
+		}
+	}
+}
+
+var jsonFieldsNameOfReadinessResponse = [4]string{
+	0: "status",
+	1: "last_update",
+	2: "is_fresh",
+	3: "error_message",
+}
+
+// Decode decodes ReadinessResponse from json.
+func (s *ReadinessResponse) Decode(d *jx.Decoder) error {
+	if s == nil {
+		return errors.New("invalid: unable to decode ReadinessResponse to nil")
+	}
+	var requiredBitSet [1]uint8
+
+	if err := d.ObjBytes(func(d *jx.Decoder, k []byte) error {
+		switch string(k) {
+		case "status":
+			requiredBitSet[0] |= 1 << 0
+			if err := func() error {
+				if err := s.Status.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"status\"")
+			}
+		case "last_update":
+			if err := func() error {
+				s.LastUpdate.Reset()
+				if err := s.LastUpdate.Decode(d, json.DecodeDateTime); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"last_update\"")
+			}
+		case "is_fresh":
+			if err := func() error {
+				s.IsFresh.Reset()
+				if err := s.IsFresh.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"is_fresh\"")
+			}
+		case "error_message":
+			if err := func() error {
+				s.ErrorMessage.Reset()
+				if err := s.ErrorMessage.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return errors.Wrap(err, "decode field \"error_message\"")
+			}
+		default:
+			return d.Skip()
+		}
+		return nil
+	}); err != nil {
+		return errors.Wrap(err, "decode ReadinessResponse")
+	}
+	// Validate required fields.
+	var failures []validate.FieldError
+	for i, mask := range [1]uint8{
+		0b00000001,
+	} {
+		if result := (requiredBitSet[i] & mask) ^ mask; result != 0 {
+			// Mask only required fields and check equality to mask using XOR.
+			//
+			// If XOR result is not zero, result is not equal to expected, so some fields are missed.
+			// Bits of fields which would be set are actually bits of missed fields.
+			missed := bits.OnesCount8(result)
+			for bitN := 0; bitN < missed; bitN++ {
+				bitIdx := bits.TrailingZeros8(result)
+				fieldIdx := i*8 + bitIdx
+				var name string
+				if fieldIdx < len(jsonFieldsNameOfReadinessResponse) {
+					name = jsonFieldsNameOfReadinessResponse[fieldIdx]
+				} else {
+					name = strconv.Itoa(fieldIdx)
+				}
+				failures = append(failures, validate.FieldError{
+					Name:  name,
+					Error: validate.ErrFieldRequired,
+				})
+				// Reset bit.
+				result &^= 1 << bitIdx
+			}
+		}
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+
+	return nil
+}
+
+// MarshalJSON implements stdjson.Marshaler.
+func (s *ReadinessResponse) MarshalJSON() ([]byte, error) {
+	e := jx.Encoder{}
+	s.Encode(&e)
+	return e.Bytes(), nil
+}
+
+// UnmarshalJSON implements stdjson.Unmarshaler.
+func (s *ReadinessResponse) UnmarshalJSON(data []byte) error {
+	d := jx.DecodeBytes(data)
+	return s.Decode(d)
+}
+
+// Encode encodes ReadinessResponseStatus as json.
+func (s ReadinessResponseStatus) Encode(e *jx.Encoder) {
+	e.Str(string(s))
+}
+
+// Decode decodes ReadinessResponseStatus from json.
+func (s *ReadinessResponseStatus) Decode(d *jx.Decoder) error {
+	if s == nil {
+		return errors.New("invalid: unable to decode ReadinessResponseStatus to nil")
+	}
+	v, err := d.StrBytes()
+	if err != nil {
+		return err
+	}
+	// Try to use constant string.
+	switch ReadinessResponseStatus(v) {
+	case ReadinessResponseStatusOk:
+		*s = ReadinessResponseStatusOk
+	case ReadinessResponseStatusNotReady:
+		*s = ReadinessResponseStatusNotReady
+	case ReadinessResponseStatusError:
+		*s = ReadinessResponseStatusError
+	default:
+		*s = ReadinessResponseStatus(v)
+	}
+
+	return nil
+}
+
+// MarshalJSON implements stdjson.Marshaler.
+func (s ReadinessResponseStatus) MarshalJSON() ([]byte, error) {
+	e := jx.Encoder{}
+	s.Encode(&e)
+	return e.Bytes(), nil
+}
+
+// UnmarshalJSON implements stdjson.Unmarshaler.
+func (s *ReadinessResponseStatus) UnmarshalJSON(data []byte) error {
+	d := jx.DecodeBytes(data)
+	return s.Decode(d)
+}

pkg/rest/oas_operations_gen.go

@@ -7,4 +7,5 @@ type OperationName = string
 
 const (
 	PerformPredictionOperation OperationName = "PerformPrediction"
+	ReadinessCheckOperation    OperationName = "ReadinessCheck"
 )

pkg/rest/oas_response_decoders_gen.go

@@ -105,3 +105,95 @@ func decodePerformPredictionResponse(resp *http.Response) (res *PredictionResult
 	}
 	return res, errors.Wrap(defRes, "error")
 }
+
+func decodeReadinessCheckResponse(resp *http.Response) (res *ReadinessResponse, _ error) {
+	switch resp.StatusCode {
+	case 200:
+		// Code 200.
+		ct, _, err := mime.ParseMediaType(resp.Header.Get("Content-Type"))
+		if err != nil {
+			return res, errors.Wrap(err, "parse media type")
+		}
+		switch {
+		case ct == "application/json":
+			buf, err := io.ReadAll(resp.Body)
+			if err != nil {
+				return res, err
+			}
+			d := jx.DecodeBytes(buf)
+
+			var response ReadinessResponse
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				if err := d.Skip(); err != io.EOF {
+					return errors.New("unexpected trailing data")
+				}
+				return nil
+			}(); err != nil {
+				err = &ogenerrors.DecodeBodyError{
+					ContentType: ct,
+					Body:        buf,
+					Err:         err,
+				}
+				return res, err
+			}
+			// Validate response.
+			if err := func() error {
+				if err := response.Validate(); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, errors.Wrap(err, "validate")
+			}
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	}
+	// Convenient error response.
+	defRes, err := func() (res *ErrorStatusCode, err error) {
+		ct, _, err := mime.ParseMediaType(resp.Header.Get("Content-Type"))
+		if err != nil {
+			return res, errors.Wrap(err, "parse media type")
+		}
+		switch {
+		case ct == "application/json":
+			buf, err := io.ReadAll(resp.Body)
+			if err != nil {
+				return res, err
+			}
+			d := jx.DecodeBytes(buf)
+
+			var response Error
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				if err := d.Skip(); err != io.EOF {
+					return errors.New("unexpected trailing data")
+				}
+				return nil
+			}(); err != nil {
+				err = &ogenerrors.DecodeBodyError{
+					ContentType: ct,
+					Body:        buf,
+					Err:         err,
+				}
+				return res, err
+			}
+			return &ErrorStatusCode{
+				StatusCode: resp.StatusCode,
+				Response:   response,
+			}, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	}()
+	if err != nil {
+		return res, errors.Wrapf(err, "default (code %d)", resp.StatusCode)
+	}
+	return res, errors.Wrap(defRes, "error")
+}

pkg/rest/oas_response_encoders_gen.go

@@ -27,6 +27,20 @@ func encodePerformPredictionResponse(response *PredictionResult, w http.Response
 	return nil
 }
 
+func encodeReadinessCheckResponse(response *ReadinessResponse, w http.ResponseWriter, span trace.Span) error {
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.WriteHeader(200)
+	span.SetStatus(codes.Ok, http.StatusText(200))
+
+	e := new(jx.Encoder)
+	response.Encode(e)
+	if _, err := e.WriteTo(w); err != nil {
+		return errors.Wrap(err, "write")
+	}
+
+	return nil
+}
+
 func encodeErrorResponse(response *ErrorStatusCode, w http.ResponseWriter, span trace.Span) error {
 	w.Header().Set("Content-Type", "application/json; charset=utf-8")
 	code := response.StatusCode

pkg/rest/oas_router_gen.go

@@ -48,24 +48,58 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			break
 		}
 		switch elem[0] {
-		case '/': // Prefix: "/api/v1/prediction"
+		case '/': // Prefix: "/"
 
-			if l := len("/api/v1/prediction"); len(elem) >= l && elem[0:l] == "/api/v1/prediction" {
+			if l := len("/"); len(elem) >= l && elem[0:l] == "/" {
 				elem = elem[l:]
 			} else {
 				break
 			}
 
 			if len(elem) == 0 {
-				// Leaf node.
-				switch r.Method {
-				case "POST":
-					s.handlePerformPredictionRequest([0]string{}, elemIsEscaped, w, r)
-				default:
-					s.notAllowed(w, r, "POST")
+				break
+			}
+			switch elem[0] {
+			case 'a': // Prefix: "api/v1/prediction"
+
+				if l := len("api/v1/prediction"); len(elem) >= l && elem[0:l] == "api/v1/prediction" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf node.
+					switch r.Method {
+					case "POST":
+						s.handlePerformPredictionRequest([0]string{}, elemIsEscaped, w, r)
+					default:
+						s.notAllowed(w, r, "POST")
+					}
+
+					return
+				}
+
+			case 'r': // Prefix: "ready"
+
+				if l := len("ready"); len(elem) >= l && elem[0:l] == "ready" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf node.
+					switch r.Method {
+					case "GET":
+						s.handleReadinessCheckRequest([0]string{}, elemIsEscaped, w, r)
+					default:
+						s.notAllowed(w, r, "GET")
+					}
+
+					return
 				}
 
-				return
 			}
 
 		}
@@ -148,28 +182,66 @@ func (s *Server) FindPath(method string, u *url.URL) (r Route, _ bool) {
 			break
 		}
 		switch elem[0] {
-		case '/': // Prefix: "/api/v1/prediction"
+		case '/': // Prefix: "/"
 
-			if l := len("/api/v1/prediction"); len(elem) >= l && elem[0:l] == "/api/v1/prediction" {
+			if l := len("/"); len(elem) >= l && elem[0:l] == "/" {
 				elem = elem[l:]
 			} else {
 				break
 			}
 
 			if len(elem) == 0 {
-				// Leaf node.
-				switch method {
-				case "POST":
-					r.name = PerformPredictionOperation
-					r.summary = "Perform preidction"
-					r.operationID = "performPrediction"
-					r.pathPattern = "/api/v1/prediction"
-					r.args = args
-					r.count = 0
-					return r, true
-				default:
-					return
+				break
+			}
+			switch elem[0] {
+			case 'a': // Prefix: "api/v1/prediction"
+
+				if l := len("api/v1/prediction"); len(elem) >= l && elem[0:l] == "api/v1/prediction" {
+					elem = elem[l:]
+				} else {
+					break
 				}
+
+				if len(elem) == 0 {
+					// Leaf node.
+					switch method {
+					case "POST":
+						r.name = PerformPredictionOperation
+						r.summary = "Perform preidction"
+						r.operationID = "performPrediction"
+						r.pathPattern = "/api/v1/prediction"
+						r.args = args
+						r.count = 0
+						return r, true
+					default:
+						return
+					}
+				}
+
+			case 'r': // Prefix: "ready"
+
+				if l := len("ready"); len(elem) >= l && elem[0:l] == "ready" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf node.
+					switch method {
+					case "GET":
+						r.name = ReadinessCheckOperation
+						r.summary = "Readiness check"
+						r.operationID = "readinessCheck"
+						r.pathPattern = "/ready"
+						r.args = args
+						r.count = 0
+						return r, true
+					default:
+						return
+					}
+				}
+
 			}
 
 		}

pkg/rest/oas_schemas_gen.go

@@ -764,4 +764,145 @@ func (s *PredictionResultPredictionItemStage) UnmarshalText(data []byte) error {
 	}
 }
 
-type PredictionResultPredictionItemTrajectoryItem struct{}
+type PredictionResultPredictionItemTrajectoryItem struct {
+	Datetime  time.Time `json:"datetime"`
+	Latitude  float64   `json:"latitude"`
+	Longitude float64   `json:"longitude"`
+	Altitude  float64   `json:"altitude"`
+}
+
+// GetDatetime returns the value of Datetime.
+func (s *PredictionResultPredictionItemTrajectoryItem) GetDatetime() time.Time {
+	return s.Datetime
+}
+
+// GetLatitude returns the value of Latitude.
+func (s *PredictionResultPredictionItemTrajectoryItem) GetLatitude() float64 {
+	return s.Latitude
+}
+
+// GetLongitude returns the value of Longitude.
+func (s *PredictionResultPredictionItemTrajectoryItem) GetLongitude() float64 {
+	return s.Longitude
+}
+
+// GetAltitude returns the value of Altitude.
+func (s *PredictionResultPredictionItemTrajectoryItem) GetAltitude() float64 {
+	return s.Altitude
+}
+
+// SetDatetime sets the value of Datetime.
+func (s *PredictionResultPredictionItemTrajectoryItem) SetDatetime(val time.Time) {
+	s.Datetime = val
+}
+
+// SetLatitude sets the value of Latitude.
+func (s *PredictionResultPredictionItemTrajectoryItem) SetLatitude(val float64) {
+	s.Latitude = val
+}
+
+// SetLongitude sets the value of Longitude.
+func (s *PredictionResultPredictionItemTrajectoryItem) SetLongitude(val float64) {
+	s.Longitude = val
+}
+
+// SetAltitude sets the value of Altitude.
+func (s *PredictionResultPredictionItemTrajectoryItem) SetAltitude(val float64) {
+	s.Altitude = val
+}
+
+// Ref: #/components/schemas/ReadinessResponse
+type ReadinessResponse struct {
+	Status       ReadinessResponseStatus `json:"status"`
+	LastUpdate   OptDateTime             `json:"last_update"`
+	IsFresh      OptBool                 `json:"is_fresh"`
+	ErrorMessage OptString               `json:"error_message"`
+}
+
+// GetStatus returns the value of Status.
+func (s *ReadinessResponse) GetStatus() ReadinessResponseStatus {
+	return s.Status
+}
+
+// GetLastUpdate returns the value of LastUpdate.
+func (s *ReadinessResponse) GetLastUpdate() OptDateTime {
+	return s.LastUpdate
+}
+
+// GetIsFresh returns the value of IsFresh.
+func (s *ReadinessResponse) GetIsFresh() OptBool {
+	return s.IsFresh
+}
+
+// GetErrorMessage returns the value of ErrorMessage.
+func (s *ReadinessResponse) GetErrorMessage() OptString {
+	return s.ErrorMessage
+}
+
+// SetStatus sets the value of Status.
+func (s *ReadinessResponse) SetStatus(val ReadinessResponseStatus) {
+	s.Status = val
+}
+
+// SetLastUpdate sets the value of LastUpdate.
+func (s *ReadinessResponse) SetLastUpdate(val OptDateTime) {
+	s.LastUpdate = val
+}
+
+// SetIsFresh sets the value of IsFresh.
+func (s *ReadinessResponse) SetIsFresh(val OptBool) {
+	s.IsFresh = val
+}
+
+// SetErrorMessage sets the value of ErrorMessage.
+func (s *ReadinessResponse) SetErrorMessage(val OptString) {
+	s.ErrorMessage = val
+}
+
+type ReadinessResponseStatus string
+
+const (
+	ReadinessResponseStatusOk       ReadinessResponseStatus = "ok"
+	ReadinessResponseStatusNotReady ReadinessResponseStatus = "not_ready"
+	ReadinessResponseStatusError    ReadinessResponseStatus = "error"
+)
+
+// AllValues returns all ReadinessResponseStatus values.
+func (ReadinessResponseStatus) AllValues() []ReadinessResponseStatus {
+	return []ReadinessResponseStatus{
+		ReadinessResponseStatusOk,
+		ReadinessResponseStatusNotReady,
+		ReadinessResponseStatusError,
+	}
+}
+
+// MarshalText implements encoding.TextMarshaler.
+func (s ReadinessResponseStatus) MarshalText() ([]byte, error) {
+	switch s {
+	case ReadinessResponseStatusOk:
+		return []byte(s), nil
+	case ReadinessResponseStatusNotReady:
+		return []byte(s), nil
+	case ReadinessResponseStatusError:
+		return []byte(s), nil
+	default:
+		return nil, errors.Errorf("invalid value: %q", s)
+	}
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler.
+func (s *ReadinessResponseStatus) UnmarshalText(data []byte) error {
+	switch ReadinessResponseStatus(data) {
+	case ReadinessResponseStatusOk:
+		*s = ReadinessResponseStatusOk
+		return nil
+	case ReadinessResponseStatusNotReady:
+		*s = ReadinessResponseStatusNotReady
+		return nil
+	case ReadinessResponseStatusError:
+		*s = ReadinessResponseStatusError
+		return nil
+	default:
+		return errors.Errorf("invalid value: %q", data)
+	}
+}

pkg/rest/oas_server_gen.go

@@ -14,6 +14,12 @@ type Handler interface {
 	//
 	// POST /api/v1/prediction
 	PerformPrediction(ctx context.Context, req OptPredictionParameters, params PerformPredictionParams) (*PredictionResult, error)
+	// ReadinessCheck implements readinessCheck operation.
+	//
+	// Readiness check.
+	//
+	// GET /ready
+	ReadinessCheck(ctx context.Context) (*ReadinessResponse, error)
 	// NewError creates *ErrorStatusCode from error returned by handler.
 	//
 	// Used for common default response.

pkg/rest/oas_unimplemented_gen.go

@@ -22,6 +22,15 @@ func (UnimplementedHandler) PerformPrediction(ctx context.Context, req OptPredic
 	return r, ht.ErrNotImplemented
 }
 
+// ReadinessCheck implements readinessCheck operation.
+//
+// Readiness check.
+//
+// GET /ready
+func (UnimplementedHandler) ReadinessCheck(ctx context.Context) (r *ReadinessResponse, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
 // NewError creates *ErrorStatusCode from error returned by handler.
 //
 // Used for common default response.

pkg/rest/oas_validators_gen.go

@@ -269,6 +269,23 @@ func (s *PredictionResultPredictionItem) Validate() error {
 		if s.Trajectory == nil {
 			return errors.New("nil is invalid value")
 		}
+		var failures []validate.FieldError
+		for i, elem := range s.Trajectory {
+			if err := func() error {
+				if err := elem.Validate(); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				failures = append(failures, validate.FieldError{
+					Name:  fmt.Sprintf("[%d]", i),
+					Error: err,
+				})
+			}
+		}
+		if len(failures) > 0 {
+			return &validate.Error{Fields: failures}
+		}
 		return nil
 	}(); err != nil {
 		failures = append(failures, validate.FieldError{
@@ -292,3 +309,84 @@ func (s PredictionResultPredictionItemStage) Validate() error {
 		return errors.Errorf("invalid value: %v", s)
 	}
 }
+
+func (s *PredictionResultPredictionItemTrajectoryItem) Validate() error {
+	if s == nil {
+		return validate.ErrNilPointer
+	}
+
+	var failures []validate.FieldError
+	if err := func() error {
+		if err := (validate.Float{}).Validate(float64(s.Latitude)); err != nil {
+			return errors.Wrap(err, "float")
+		}
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "latitude",
+			Error: err,
+		})
+	}
+	if err := func() error {
+		if err := (validate.Float{}).Validate(float64(s.Longitude)); err != nil {
+			return errors.Wrap(err, "float")
+		}
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "longitude",
+			Error: err,
+		})
+	}
+	if err := func() error {
+		if err := (validate.Float{}).Validate(float64(s.Altitude)); err != nil {
+			return errors.Wrap(err, "float")
+		}
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "altitude",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+
+func (s *ReadinessResponse) Validate() error {
+	if s == nil {
+		return validate.ErrNilPointer
+	}
+
+	var failures []validate.FieldError
+	if err := func() error {
+		if err := s.Status.Validate(); err != nil {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "status",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+
+func (s ReadinessResponseStatus) Validate() error {
+	switch s {
+	case "ok":
+		return nil
+	case "not_ready":
+		return nil
+	case "error":
+		return nil
+	default:
+		return errors.Errorf("invalid value: %v", s)
+	}
+}