new client version checking protocol (#859)

controller/controller.go

@@ -67,9 +67,10 @@ func Run(inCfg *config.Config) error {
 	api.AdminUpdateFrontendHandler = newUpdateFrontendHandler()
 	api.EnvironmentEnableHandler = newEnableHandler()
 	api.EnvironmentDisableHandler = newDisableHandler()
+	api.MetadataConfigurationHandler = newConfigurationHandler(cfg)
+	api.MetadataClientVersionCheckHandler = metadata.ClientVersionCheckHandlerFunc(clientVersionCheckHandler)
 	api.MetadataGetAccountDetailHandler = newAccountDetailHandler()
 	api.MetadataGetSparklinesHandler = newSparklinesHandler()
-	api.MetadataConfigurationHandler = newConfigurationHandler(cfg)
 	if cfg.Metrics != nil && cfg.Metrics.Influx != nil {
 		api.MetadataGetAccountMetricsHandler = newGetAccountMetricsHandler(cfg.Metrics.Influx)
 		api.MetadataGetEnvironmentMetricsHandler = newGetEnvironmentMetricsHandler(cfg.Metrics.Influx)

controller/version.go

@@ -1,9 +1,13 @@
 package controller
 
 import (
+	"fmt"
 	"github.com/go-openapi/runtime/middleware"
+	"github.com/openziti/zrok/build"
 	"github.com/openziti/zrok/rest_model_zrok"
 	"github.com/openziti/zrok/rest_server_zrok/operations/metadata"
+	"github.com/sirupsen/logrus"
+	"regexp"
 )
 
 func versionHandler(_ metadata.VersionParams) middleware.Responder {
@@ -11,3 +15,14 @@ func versionHandler(_ metadata.VersionParams) middleware.Responder {
 		"please visit 'https://github.com/openziti/zrok/releases' for the latest build!"
 	return metadata.NewVersionOK().WithPayload(rest_model_zrok.Version(outOfDate))
 }
+
+func clientVersionCheckHandler(params metadata.ClientVersionCheckParams) middleware.Responder {
+	logrus.Debugf("client sent version '%v'", params.Body.ClientVersion)
+	// allow reported version string to be optionally prefixed with
+	// "refs/heads/" or "refs/tags/"
+	re := regexp.MustCompile(`^(refs/(heads|tags)/)?` + build.Series)
+	if !re.MatchString(params.Body.ClientVersion) {
+		return metadata.NewClientVersionCheckBadRequest().WithPayload(fmt.Sprintf("expecting a zrok client version matching '%v' version, received: '%v'; please visit 'https://github.com/openziti/zrok/releases' to make sure you're running the correct client version!", build.Series, params.Body.ClientVersion))
+	}
+	return metadata.NewClientVersionCheckOK()
+}

environment/env_v0_3/api.go

@@ -7,11 +7,11 @@ import (
 	"github.com/openziti/zrok/build"
 	"github.com/openziti/zrok/environment/env_core"
 	"github.com/openziti/zrok/rest_client_zrok"
+	metadata2 "github.com/openziti/zrok/rest_client_zrok/metadata"
 	"github.com/pkg/errors"
 	"net/url"
 	"os"
 	"path/filepath"
-	"regexp"
 	"strconv"
 )
 
@@ -49,15 +49,13 @@ func (r *Root) Client() (*rest_client_zrok.Zrok, error) {
 	transport.Consumers["application/zrok.v1+json"] = runtime.JSONConsumer()
 
 	zrok := rest_client_zrok.New(transport, strfmt.Default)
-	v, err := zrok.Metadata.Version(nil)
+	_, err = zrok.Metadata.ClientVersionCheck(&metadata2.ClientVersionCheckParams{
+		Body: metadata2.ClientVersionCheckBody{
+			ClientVersion: build.String(),
+		},
+	})
 	if err != nil {
-		return nil, errors.Wrapf(err, "error getting version from api endpoint '%v': %v", apiEndpoint, err)
-	}
-	// allow reported version string to be optionally prefixed with
-	// "refs/heads/" or "refs/tags/"
-	re := regexp.MustCompile(`^(refs/(heads|tags)/)?` + build.Series)
-	if !re.MatchString(string(v.Payload)) {
-		return nil, errors.Errorf("expected a '%v' version, received: '%v'", build.Series, v.Payload)
+		return nil, errors.Wrapf(err, "client version error accessing api endpoint '%v' (%v): %v", apiEndpoint, err)
 	}
 
 	return zrok, nil

environment/env_v0_4/api.go

@@ -7,11 +7,12 @@ import (
 	"github.com/openziti/zrok/build"
 	"github.com/openziti/zrok/environment/env_core"
 	"github.com/openziti/zrok/rest_client_zrok"
+	metadata2 "github.com/openziti/zrok/rest_client_zrok/metadata"
 	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 	"net/url"
 	"os"
 	"path/filepath"
-	"regexp"
 	"strconv"
 )
 
@@ -48,18 +49,16 @@ func (r *Root) Client() (*rest_client_zrok.Zrok, error) {
 	transport.Producers["application/zrok.v1+json"] = runtime.JSONProducer()
 	transport.Consumers["application/zrok.v1+json"] = runtime.JSONConsumer()
 
+	logrus.Infof("version = %v", build.Version)
 	zrok := rest_client_zrok.New(transport, strfmt.Default)
-	v, err := zrok.Metadata.Version(nil)
+	_, err = zrok.Metadata.ClientVersionCheck(&metadata2.ClientVersionCheckParams{
+		Body: metadata2.ClientVersionCheckBody{
+			ClientVersion: build.String(),
+		},
+	})
 	if err != nil {
-		return nil, errors.Wrapf(err, "error getting version from api endpoint '%v': %v", apiEndpoint, err)
+		return nil, errors.Wrapf(err, "client version error accessing api endpoint '%v': %v", apiEndpoint, err)
 	}
-	// allow reported version string to be optionally prefixed with
-	// "refs/heads/" or "refs/tags/"
-	re := regexp.MustCompile(`^(refs/(heads|tags)/)?` + build.Series)
-	if !re.MatchString(string(v.Payload)) {
-		return nil, errors.Errorf("expected a '%v' version, received: '%v'", build.Series, v.Payload)
-	}
-
 	return zrok, nil
 }
 

rest_client_zrok/metadata/client_version_check_parameters.go

@@ -0,0 +1,146 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package metadata
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/runtime"
+	cr "github.com/go-openapi/runtime/client"
+	"github.com/go-openapi/strfmt"
+)
+
+// NewClientVersionCheckParams creates a new ClientVersionCheckParams object,
+// with the default timeout for this client.
+//
+// Default values are not hydrated, since defaults are normally applied by the API server side.
+//
+// To enforce default values in parameter, use SetDefaults or WithDefaults.
+func NewClientVersionCheckParams() *ClientVersionCheckParams {
+	return &ClientVersionCheckParams{
+		timeout: cr.DefaultTimeout,
+	}
+}
+
+// NewClientVersionCheckParamsWithTimeout creates a new ClientVersionCheckParams object
+// with the ability to set a timeout on a request.
+func NewClientVersionCheckParamsWithTimeout(timeout time.Duration) *ClientVersionCheckParams {
+	return &ClientVersionCheckParams{
+		timeout: timeout,
+	}
+}
+
+// NewClientVersionCheckParamsWithContext creates a new ClientVersionCheckParams object
+// with the ability to set a context for a request.
+func NewClientVersionCheckParamsWithContext(ctx context.Context) *ClientVersionCheckParams {
+	return &ClientVersionCheckParams{
+		Context: ctx,
+	}
+}
+
+// NewClientVersionCheckParamsWithHTTPClient creates a new ClientVersionCheckParams object
+// with the ability to set a custom HTTPClient for a request.
+func NewClientVersionCheckParamsWithHTTPClient(client *http.Client) *ClientVersionCheckParams {
+	return &ClientVersionCheckParams{
+		HTTPClient: client,
+	}
+}
+
+/*
+ClientVersionCheckParams contains all the parameters to send to the API endpoint
+
+	for the client version check operation.
+
+	Typically these are written to a http.Request.
+*/
+type ClientVersionCheckParams struct {
+
+	// Body.
+	Body ClientVersionCheckBody
+
+	timeout    time.Duration
+	Context    context.Context
+	HTTPClient *http.Client
+}
+
+// WithDefaults hydrates default values in the client version check params (not the query body).
+//
+// All values with no default are reset to their zero value.
+func (o *ClientVersionCheckParams) WithDefaults() *ClientVersionCheckParams {
+	o.SetDefaults()
+	return o
+}
+
+// SetDefaults hydrates default values in the client version check params (not the query body).
+//
+// All values with no default are reset to their zero value.
+func (o *ClientVersionCheckParams) SetDefaults() {
+	// no default values defined for this parameter
+}
+
+// WithTimeout adds the timeout to the client version check params
+func (o *ClientVersionCheckParams) WithTimeout(timeout time.Duration) *ClientVersionCheckParams {
+	o.SetTimeout(timeout)
+	return o
+}
+
+// SetTimeout adds the timeout to the client version check params
+func (o *ClientVersionCheckParams) SetTimeout(timeout time.Duration) {
+	o.timeout = timeout
+}
+
+// WithContext adds the context to the client version check params
+func (o *ClientVersionCheckParams) WithContext(ctx context.Context) *ClientVersionCheckParams {
+	o.SetContext(ctx)
+	return o
+}
+
+// SetContext adds the context to the client version check params
+func (o *ClientVersionCheckParams) SetContext(ctx context.Context) {
+	o.Context = ctx
+}
+
+// WithHTTPClient adds the HTTPClient to the client version check params
+func (o *ClientVersionCheckParams) WithHTTPClient(client *http.Client) *ClientVersionCheckParams {
+	o.SetHTTPClient(client)
+	return o
+}
+
+// SetHTTPClient adds the HTTPClient to the client version check params
+func (o *ClientVersionCheckParams) SetHTTPClient(client *http.Client) {
+	o.HTTPClient = client
+}
+
+// WithBody adds the body to the client version check params
+func (o *ClientVersionCheckParams) WithBody(body ClientVersionCheckBody) *ClientVersionCheckParams {
+	o.SetBody(body)
+	return o
+}
+
+// SetBody adds the body to the client version check params
+func (o *ClientVersionCheckParams) SetBody(body ClientVersionCheckBody) {
+	o.Body = body
+}
+
+// WriteToRequest writes these params to a swagger request
+func (o *ClientVersionCheckParams) WriteToRequest(r runtime.ClientRequest, reg strfmt.Registry) error {
+
+	if err := r.SetTimeout(o.timeout); err != nil {
+		return err
+	}
+	var res []error
+	if err := r.SetBodyParam(o.Body); err != nil {
+		return err
+	}
+
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}

rest_client_zrok/metadata/client_version_check_responses.go

@@ -0,0 +1,201 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package metadata
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"github.com/go-openapi/runtime"
+	"github.com/go-openapi/strfmt"
+	"github.com/go-openapi/swag"
+)
+
+// ClientVersionCheckReader is a Reader for the ClientVersionCheck structure.
+type ClientVersionCheckReader struct {
+	formats strfmt.Registry
+}
+
+// ReadResponse reads a server response into the received o.
+func (o *ClientVersionCheckReader) ReadResponse(response runtime.ClientResponse, consumer runtime.Consumer) (interface{}, error) {
+	switch response.Code() {
+	case 200:
+		result := NewClientVersionCheckOK()
+		if err := result.readResponse(response, consumer, o.formats); err != nil {
+			return nil, err
+		}
+		return result, nil
+	case 400:
+		result := NewClientVersionCheckBadRequest()
+		if err := result.readResponse(response, consumer, o.formats); err != nil {
+			return nil, err
+		}
+		return nil, result
+	default:
+		return nil, runtime.NewAPIError("[POST /version] clientVersionCheck", response, response.Code())
+	}
+}
+
+// NewClientVersionCheckOK creates a ClientVersionCheckOK with default headers values
+func NewClientVersionCheckOK() *ClientVersionCheckOK {
+	return &ClientVersionCheckOK{}
+}
+
+/*
+ClientVersionCheckOK describes a response with status code 200, with default header values.
+
+compatible
+*/
+type ClientVersionCheckOK struct {
+}
+
+// IsSuccess returns true when this client version check o k response has a 2xx status code
+func (o *ClientVersionCheckOK) IsSuccess() bool {
+	return true
+}
+
+// IsRedirect returns true when this client version check o k response has a 3xx status code
+func (o *ClientVersionCheckOK) IsRedirect() bool {
+	return false
+}
+
+// IsClientError returns true when this client version check o k response has a 4xx status code
+func (o *ClientVersionCheckOK) IsClientError() bool {
+	return false
+}
+
+// IsServerError returns true when this client version check o k response has a 5xx status code
+func (o *ClientVersionCheckOK) IsServerError() bool {
+	return false
+}
+
+// IsCode returns true when this client version check o k response a status code equal to that given
+func (o *ClientVersionCheckOK) IsCode(code int) bool {
+	return code == 200
+}
+
+// Code gets the status code for the client version check o k response
+func (o *ClientVersionCheckOK) Code() int {
+	return 200
+}
+
+func (o *ClientVersionCheckOK) Error() string {
+	return fmt.Sprintf("[POST /version][%d] clientVersionCheckOK ", 200)
+}
+
+func (o *ClientVersionCheckOK) String() string {
+	return fmt.Sprintf("[POST /version][%d] clientVersionCheckOK ", 200)
+}
+
+func (o *ClientVersionCheckOK) readResponse(response runtime.ClientResponse, consumer runtime.Consumer, formats strfmt.Registry) error {
+
+	return nil
+}
+
+// NewClientVersionCheckBadRequest creates a ClientVersionCheckBadRequest with default headers values
+func NewClientVersionCheckBadRequest() *ClientVersionCheckBadRequest {
+	return &ClientVersionCheckBadRequest{}
+}
+
+/*
+ClientVersionCheckBadRequest describes a response with status code 400, with default header values.
+
+not compatible
+*/
+type ClientVersionCheckBadRequest struct {
+	Payload string
+}
+
+// IsSuccess returns true when this client version check bad request response has a 2xx status code
+func (o *ClientVersionCheckBadRequest) IsSuccess() bool {
+	return false
+}
+
+// IsRedirect returns true when this client version check bad request response has a 3xx status code
+func (o *ClientVersionCheckBadRequest) IsRedirect() bool {
+	return false
+}
+
+// IsClientError returns true when this client version check bad request response has a 4xx status code
+func (o *ClientVersionCheckBadRequest) IsClientError() bool {
+	return true
+}
+
+// IsServerError returns true when this client version check bad request response has a 5xx status code
+func (o *ClientVersionCheckBadRequest) IsServerError() bool {
+	return false
+}
+
+// IsCode returns true when this client version check bad request response a status code equal to that given
+func (o *ClientVersionCheckBadRequest) IsCode(code int) bool {
+	return code == 400
+}
+
+// Code gets the status code for the client version check bad request response
+func (o *ClientVersionCheckBadRequest) Code() int {
+	return 400
+}
+
+func (o *ClientVersionCheckBadRequest) Error() string {
+	return fmt.Sprintf("[POST /version][%d] clientVersionCheckBadRequest  %+v", 400, o.Payload)
+}
+
+func (o *ClientVersionCheckBadRequest) String() string {
+	return fmt.Sprintf("[POST /version][%d] clientVersionCheckBadRequest  %+v", 400, o.Payload)
+}
+
+func (o *ClientVersionCheckBadRequest) GetPayload() string {
+	return o.Payload
+}
+
+func (o *ClientVersionCheckBadRequest) readResponse(response runtime.ClientResponse, consumer runtime.Consumer, formats strfmt.Registry) error {
+
+	// response payload
+	if err := consumer.Consume(response.Body(), &o.Payload); err != nil && err != io.EOF {
+		return err
+	}
+
+	return nil
+}
+
+/*
+ClientVersionCheckBody client version check body
+swagger:model ClientVersionCheckBody
+*/
+type ClientVersionCheckBody struct {
+
+	// client version
+	ClientVersion string `json:"clientVersion,omitempty"`
+}
+
+// Validate validates this client version check body
+func (o *ClientVersionCheckBody) Validate(formats strfmt.Registry) error {
+	return nil
+}
+
+// ContextValidate validates this client version check body based on context it is used
+func (o *ClientVersionCheckBody) ContextValidate(ctx context.Context, formats strfmt.Registry) error {
+	return nil
+}
+
+// MarshalBinary interface implementation
+func (o *ClientVersionCheckBody) MarshalBinary() ([]byte, error) {
+	if o == nil {
+		return nil, nil
+	}
+	return swag.WriteJSON(o)
+}
+
+// UnmarshalBinary interface implementation
+func (o *ClientVersionCheckBody) UnmarshalBinary(b []byte) error {
+	var res ClientVersionCheckBody
+	if err := swag.ReadJSON(b, &res); err != nil {
+		return err
+	}
+	*o = res
+	return nil
+}

rest_client_zrok/metadata/metadata_client.go

@@ -30,6 +30,8 @@ type ClientOption func(*runtime.ClientOperation)
 
 // ClientService is the interface for Client methods
 type ClientService interface {
+	ClientVersionCheck(params *ClientVersionCheckParams, opts ...ClientOption) (*ClientVersionCheckOK, error)
+
 	Configuration(params *ConfigurationParams, opts ...ClientOption) (*ConfigurationOK, error)
 
 	GetAccountDetail(params *GetAccountDetailParams, authInfo runtime.ClientAuthInfoWriter, opts ...ClientOption) (*GetAccountDetailOK, error)
@@ -61,6 +63,44 @@ type ClientService interface {
 	SetTransport(transport runtime.ClientTransport)
 }
 
+/*
+ClientVersionCheck client version check API
+*/
+func (a *Client) ClientVersionCheck(params *ClientVersionCheckParams, opts ...ClientOption) (*ClientVersionCheckOK, error) {
+	// TODO: Validate the params before sending
+	if params == nil {
+		params = NewClientVersionCheckParams()
+	}
+	op := &runtime.ClientOperation{
+		ID:                 "clientVersionCheck",
+		Method:             "POST",
+		PathPattern:        "/version",
+		ProducesMediaTypes: []string{"application/zrok.v1+json"},
+		ConsumesMediaTypes: []string{"application/zrok.v1+json"},
+		Schemes:            []string{"http"},
+		Params:             params,
+		Reader:             &ClientVersionCheckReader{formats: a.formats},
+		Context:            params.Context,
+		Client:             params.HTTPClient,
+	}
+	for _, opt := range opts {
+		opt(op)
+	}
+
+	result, err := a.transport.Submit(op)
+	if err != nil {
+		return nil, err
+	}
+	success, ok := result.(*ClientVersionCheckOK)
+	if ok {
+		return success, nil
+	}
+	// unexpected success response
+	// safeguard: normally, absent a default response, unknown success responses return an error above: so this is a codegen issue
+	msg := fmt.Sprintf("unexpected success response for clientVersionCheck: API contract not enforced by server. Client expected to get an error, but got: %T", result)
+	panic(msg)
+}
+
 /*
 Configuration configuration API
 */

rest_server_zrok/embedded_spec.go

@@ -1909,6 +1909,36 @@ func init() {
             }
           }
         }
+      },
+      "post": {
+        "tags": [
+          "metadata"
+        ],
+        "operationId": "clientVersionCheck",
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "schema": {
+              "properties": {
+                "clientVersion": {
+                  "type": "string"
+                }
+              }
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "compatible"
+          },
+          "400": {
+            "description": "not compatible",
+            "schema": {
+              "type": "string"
+            }
+          }
+        }
       }
     }
   },
@@ -4114,6 +4144,36 @@ func init() {
             }
           }
         }
+      },
+      "post": {
+        "tags": [
+          "metadata"
+        ],
+        "operationId": "clientVersionCheck",
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "schema": {
+              "properties": {
+                "clientVersion": {
+                  "type": "string"
+                }
+              }
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "compatible"
+          },
+          "400": {
+            "description": "not compatible",
+            "schema": {
+              "type": "string"
+            }
+          }
+        }
       }
     }
   },

rest_server_zrok/operations/metadata/client_version_check.go

@@ -0,0 +1,96 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package metadata
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the generate command
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/go-openapi/runtime/middleware"
+	"github.com/go-openapi/strfmt"
+	"github.com/go-openapi/swag"
+)
+
+// ClientVersionCheckHandlerFunc turns a function with the right signature into a client version check handler
+type ClientVersionCheckHandlerFunc func(ClientVersionCheckParams) middleware.Responder
+
+// Handle executing the request and returning a response
+func (fn ClientVersionCheckHandlerFunc) Handle(params ClientVersionCheckParams) middleware.Responder {
+	return fn(params)
+}
+
+// ClientVersionCheckHandler interface for that can handle valid client version check params
+type ClientVersionCheckHandler interface {
+	Handle(ClientVersionCheckParams) middleware.Responder
+}
+
+// NewClientVersionCheck creates a new http.Handler for the client version check operation
+func NewClientVersionCheck(ctx *middleware.Context, handler ClientVersionCheckHandler) *ClientVersionCheck {
+	return &ClientVersionCheck{Context: ctx, Handler: handler}
+}
+
+/*
+	ClientVersionCheck swagger:route POST /version metadata clientVersionCheck
+
+ClientVersionCheck client version check API
+*/
+type ClientVersionCheck struct {
+	Context *middleware.Context
+	Handler ClientVersionCheckHandler
+}
+
+func (o *ClientVersionCheck) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
+	route, rCtx, _ := o.Context.RouteInfo(r)
+	if rCtx != nil {
+		*r = *rCtx
+	}
+	var Params = NewClientVersionCheckParams()
+	if err := o.Context.BindValidRequest(r, route, &Params); err != nil { // bind params
+		o.Context.Respond(rw, r, route.Produces, route, err)
+		return
+	}
+
+	res := o.Handler.Handle(Params) // actually handle the request
+	o.Context.Respond(rw, r, route.Produces, route, res)
+
+}
+
+// ClientVersionCheckBody client version check body
+//
+// swagger:model ClientVersionCheckBody
+type ClientVersionCheckBody struct {
+
+	// client version
+	ClientVersion string `json:"clientVersion,omitempty"`
+}
+
+// Validate validates this client version check body
+func (o *ClientVersionCheckBody) Validate(formats strfmt.Registry) error {
+	return nil
+}
+
+// ContextValidate validates this client version check body based on context it is used
+func (o *ClientVersionCheckBody) ContextValidate(ctx context.Context, formats strfmt.Registry) error {
+	return nil
+}
+
+// MarshalBinary interface implementation
+func (o *ClientVersionCheckBody) MarshalBinary() ([]byte, error) {
+	if o == nil {
+		return nil, nil
+	}
+	return swag.WriteJSON(o)
+}
+
+// UnmarshalBinary interface implementation
+func (o *ClientVersionCheckBody) UnmarshalBinary(b []byte) error {
+	var res ClientVersionCheckBody
+	if err := swag.ReadJSON(b, &res); err != nil {
+		return err
+	}
+	*o = res
+	return nil
+}

rest_server_zrok/operations/metadata/client_version_check_parameters.go

@@ -0,0 +1,74 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package metadata
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"net/http"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/runtime"
+	"github.com/go-openapi/runtime/middleware"
+	"github.com/go-openapi/validate"
+)
+
+// NewClientVersionCheckParams creates a new ClientVersionCheckParams object
+//
+// There are no default values defined in the spec.
+func NewClientVersionCheckParams() ClientVersionCheckParams {
+
+	return ClientVersionCheckParams{}
+}
+
+// ClientVersionCheckParams contains all the bound params for the client version check operation
+// typically these are obtained from a http.Request
+//
+// swagger:parameters clientVersionCheck
+type ClientVersionCheckParams struct {
+
+	// HTTP Request Object
+	HTTPRequest *http.Request `json:"-"`
+
+	/*
+	  In: body
+	*/
+	Body ClientVersionCheckBody
+}
+
+// BindRequest both binds and validates a request, it assumes that complex things implement a Validatable(strfmt.Registry) error interface
+// for simple values it will use straight method calls.
+//
+// To ensure default values, the struct must have been initialized with NewClientVersionCheckParams() beforehand.
+func (o *ClientVersionCheckParams) BindRequest(r *http.Request, route *middleware.MatchedRoute) error {
+	var res []error
+
+	o.HTTPRequest = r
+
+	if runtime.HasBody(r) {
+		defer r.Body.Close()
+		var body ClientVersionCheckBody
+		if err := route.Consumer.Consume(r.Body, &body); err != nil {
+			res = append(res, errors.NewParseError("body", "body", "", err))
+		} else {
+			// validate body object
+			if err := body.Validate(route.Formats); err != nil {
+				res = append(res, err)
+			}
+
+			ctx := validate.WithOperationRequest(r.Context())
+			if err := body.ContextValidate(ctx, route.Formats); err != nil {
+				res = append(res, err)
+			}
+
+			if len(res) == 0 {
+				o.Body = body
+			}
+		}
+	}
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}

rest_server_zrok/operations/metadata/client_version_check_responses.go

@@ -0,0 +1,80 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package metadata
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"net/http"
+
+	"github.com/go-openapi/runtime"
+)
+
+// ClientVersionCheckOKCode is the HTTP code returned for type ClientVersionCheckOK
+const ClientVersionCheckOKCode int = 200
+
+/*
+ClientVersionCheckOK compatible
+
+swagger:response clientVersionCheckOK
+*/
+type ClientVersionCheckOK struct {
+}
+
+// NewClientVersionCheckOK creates ClientVersionCheckOK with default headers values
+func NewClientVersionCheckOK() *ClientVersionCheckOK {
+
+	return &ClientVersionCheckOK{}
+}
+
+// WriteResponse to the client
+func (o *ClientVersionCheckOK) WriteResponse(rw http.ResponseWriter, producer runtime.Producer) {
+
+	rw.Header().Del(runtime.HeaderContentType) //Remove Content-Type on empty responses
+
+	rw.WriteHeader(200)
+}
+
+// ClientVersionCheckBadRequestCode is the HTTP code returned for type ClientVersionCheckBadRequest
+const ClientVersionCheckBadRequestCode int = 400
+
+/*
+ClientVersionCheckBadRequest not compatible
+
+swagger:response clientVersionCheckBadRequest
+*/
+type ClientVersionCheckBadRequest struct {
+
+	/*
+	  In: Body
+	*/
+	Payload string `json:"body,omitempty"`
+}
+
+// NewClientVersionCheckBadRequest creates ClientVersionCheckBadRequest with default headers values
+func NewClientVersionCheckBadRequest() *ClientVersionCheckBadRequest {
+
+	return &ClientVersionCheckBadRequest{}
+}
+
+// WithPayload adds the payload to the client version check bad request response
+func (o *ClientVersionCheckBadRequest) WithPayload(payload string) *ClientVersionCheckBadRequest {
+	o.Payload = payload
+	return o
+}
+
+// SetPayload sets the payload to the client version check bad request response
+func (o *ClientVersionCheckBadRequest) SetPayload(payload string) {
+	o.Payload = payload
+}
+
+// WriteResponse to the client
+func (o *ClientVersionCheckBadRequest) WriteResponse(rw http.ResponseWriter, producer runtime.Producer) {
+
+	rw.WriteHeader(400)
+	payload := o.Payload
+	if err := producer.Produce(rw, payload); err != nil {
+		panic(err) // let the recovery middleware deal with this
+	}
+}

rest_server_zrok/operations/metadata/client_version_check_urlbuilder.go

@@ -0,0 +1,87 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+package metadata
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the generate command
+
+import (
+	"errors"
+	"net/url"
+	golangswaggerpaths "path"
+)
+
+// ClientVersionCheckURL generates an URL for the client version check operation
+type ClientVersionCheckURL struct {
+	_basePath string
+}
+
+// WithBasePath sets the base path for this url builder, only required when it's different from the
+// base path specified in the swagger spec.
+// When the value of the base path is an empty string
+func (o *ClientVersionCheckURL) WithBasePath(bp string) *ClientVersionCheckURL {
+	o.SetBasePath(bp)
+	return o
+}
+
+// SetBasePath sets the base path for this url builder, only required when it's different from the
+// base path specified in the swagger spec.
+// When the value of the base path is an empty string
+func (o *ClientVersionCheckURL) SetBasePath(bp string) {
+	o._basePath = bp
+}
+
+// Build a url path and query string
+func (o *ClientVersionCheckURL) Build() (*url.URL, error) {
+	var _result url.URL
+
+	var _path = "/version"
+
+	_basePath := o._basePath
+	if _basePath == "" {
+		_basePath = "/api/v1"
+	}
+	_result.Path = golangswaggerpaths.Join(_basePath, _path)
+
+	return &_result, nil
+}
+
+// Must is a helper function to panic when the url builder returns an error
+func (o *ClientVersionCheckURL) Must(u *url.URL, err error) *url.URL {
+	if err != nil {
+		panic(err)
+	}
+	if u == nil {
+		panic("url can't be nil")
+	}
+	return u
+}
+
+// String returns the string representation of the path with query string
+func (o *ClientVersionCheckURL) String() string {
+	return o.Must(o.Build()).String()
+}
+
+// BuildFull builds a full url with scheme, host, path and query string
+func (o *ClientVersionCheckURL) BuildFull(scheme, host string) (*url.URL, error) {
+	if scheme == "" {
+		return nil, errors.New("scheme is required for a full url on ClientVersionCheckURL")
+	}
+	if host == "" {
+		return nil, errors.New("host is required for a full url on ClientVersionCheckURL")
+	}
+
+	base, err := o.Build()
+	if err != nil {
+		return nil, err
+	}
+
+	base.Scheme = scheme
+	base.Host = host
+	return base, nil
+}
+
+// StringFull returns the string representation of a complete url
+func (o *ClientVersionCheckURL) StringFull(scheme, host string) string {
+	return o.Must(o.BuildFull(scheme, host)).String()
+}

rest_server_zrok/operations/zrok_api.go

@@ -58,6 +58,9 @@ func NewZrokAPI(spec *loads.Document) *ZrokAPI {
 		AccountChangePasswordHandler: account.ChangePasswordHandlerFunc(func(params account.ChangePasswordParams, principal *rest_model_zrok.Principal) middleware.Responder {
 			return middleware.NotImplemented("operation account.ChangePassword has not yet been implemented")
 		}),
+		MetadataClientVersionCheckHandler: metadata.ClientVersionCheckHandlerFunc(func(params metadata.ClientVersionCheckParams) middleware.Responder {
+			return middleware.NotImplemented("operation metadata.ClientVersionCheck has not yet been implemented")
+		}),
 		MetadataConfigurationHandler: metadata.ConfigurationHandlerFunc(func(params metadata.ConfigurationParams) middleware.Responder {
 			return middleware.NotImplemented("operation metadata.Configuration has not yet been implemented")
 		}),
@@ -237,6 +240,8 @@ type ZrokAPI struct {
 	AdminAddOrganizationMemberHandler admin.AddOrganizationMemberHandler
 	// AccountChangePasswordHandler sets the operation handler for the change password operation
 	AccountChangePasswordHandler account.ChangePasswordHandler
+	// MetadataClientVersionCheckHandler sets the operation handler for the client version check operation
+	MetadataClientVersionCheckHandler metadata.ClientVersionCheckHandler
 	// MetadataConfigurationHandler sets the operation handler for the configuration operation
 	MetadataConfigurationHandler metadata.ConfigurationHandler
 	// AdminCreateAccountHandler sets the operation handler for the create account operation
@@ -409,6 +414,9 @@ func (o *ZrokAPI) Validate() error {
 	if o.AccountChangePasswordHandler == nil {
 		unregistered = append(unregistered, "account.ChangePasswordHandler")
 	}
+	if o.MetadataClientVersionCheckHandler == nil {
+		unregistered = append(unregistered, "metadata.ClientVersionCheckHandler")
+	}
 	if o.MetadataConfigurationHandler == nil {
 		unregistered = append(unregistered, "metadata.ConfigurationHandler")
 	}
@@ -643,6 +651,10 @@ func (o *ZrokAPI) initHandlerCache() {
 		o.handlers["POST"] = make(map[string]http.Handler)
 	}
 	o.handlers["POST"]["/changePassword"] = account.NewChangePassword(o.context, o.AccountChangePasswordHandler)
+	if o.handlers["POST"] == nil {
+		o.handlers["POST"] = make(map[string]http.Handler)
+	}
+	o.handlers["POST"]["/version"] = metadata.NewClientVersionCheck(o.context, o.MetadataClientVersionCheckHandler)
 	if o.handlers["GET"] == nil {
 		o.handlers["GET"] = make(map[string]http.Handler)
 	}

sdk/nodejs/sdk/src/zrok/api/.openapi-generator/FILES

@@ -12,6 +12,7 @@ model/accessRequest.ts
 model/addOrganizationMemberRequest.ts
 model/authUser.ts
 model/changePasswordRequest.ts
+model/clientVersionCheckRequest.ts
 model/configuration.ts
 model/createFrontend201Response.ts
 model/createFrontendRequest.ts

sdk/nodejs/sdk/src/zrok/api/api/metadataApi.ts

@@ -15,6 +15,7 @@ import localVarRequest from 'request';
 import http from 'http';
 
 /* tslint:disable:no-unused-locals */
+import { ClientVersionCheckRequest } from '../model/clientVersionCheckRequest';
 import { Configuration } from '../model/configuration';
 import { Environment } from '../model/environment';
 import { EnvironmentAndResources } from '../model/environmentAndResources';
@@ -99,6 +100,68 @@ export class MetadataApi {
         this.interceptors.push(interceptor);
     }
 
+    /**
+     * 
+     * @param body 
+     */
+    public async clientVersionCheck (body?: ClientVersionCheckRequest, options: {headers: {[name: string]: string}} = {headers: {}}) : Promise<{ response: http.IncomingMessage; body?: any;  }> {
+        const localVarPath = this.basePath + '/version';
+        let localVarQueryParameters: any = {};
+        let localVarHeaderParams: any = (<any>Object).assign({}, this._defaultHeaders);
+        const produces = ['application/zrok.v1+json'];
+        // give precedence to 'application/json'
+        if (produces.indexOf('application/json') >= 0) {
+            localVarHeaderParams.Accept = 'application/json';
+        } else {
+            localVarHeaderParams.Accept = produces.join(',');
+        }
+        let localVarFormParams: any = {};
+
+        (<any>Object).assign(localVarHeaderParams, options.headers);
+
+        let localVarUseFormData = false;
+
+        let localVarRequestOptions: localVarRequest.Options = {
+            method: 'POST',
+            qs: localVarQueryParameters,
+            headers: localVarHeaderParams,
+            uri: localVarPath,
+            useQuerystring: this._useQuerystring,
+            json: true,
+            body: ObjectSerializer.serialize(body, "ClientVersionCheckRequest")
+        };
+
+        let authenticationPromise = Promise.resolve();
+        authenticationPromise = authenticationPromise.then(() => this.authentications.default.applyToRequest(localVarRequestOptions));
+
+        let interceptorPromise = authenticationPromise;
+        for (const interceptor of this.interceptors) {
+            interceptorPromise = interceptorPromise.then(() => interceptor(localVarRequestOptions));
+        }
+
+        return interceptorPromise.then(() => {
+            if (Object.keys(localVarFormParams).length) {
+                if (localVarUseFormData) {
+                    (<any>localVarRequestOptions).formData = localVarFormParams;
+                } else {
+                    localVarRequestOptions.form = localVarFormParams;
+                }
+            }
+            return new Promise<{ response: http.IncomingMessage; body?: any;  }>((resolve, reject) => {
+                localVarRequest(localVarRequestOptions, (error, response, body) => {
+                    if (error) {
+                        reject(error);
+                    } else {
+                        if (response.statusCode && response.statusCode >= 200 && response.statusCode <= 299) {
+                            resolve({ response: response, body: body });
+                        } else {
+                            reject(new HttpError(response, body, response.statusCode));
+                        }
+                    }
+                });
+            });
+        });
+    }
     /**
      * 
      */

sdk/nodejs/sdk/src/zrok/api/model/clientVersionCheck400Response.ts

@@ -0,0 +1,31 @@
+/**
+ * zrok
+ * zrok client access
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+import { RequestFile } from './models';
+
+export class ClientVersionCheck400Response {
+    'message'?: string;
+
+    static discriminator: string | undefined = undefined;
+
+    static attributeTypeMap: Array<{name: string, baseName: string, type: string}> = [
+        {
+            "name": "message",
+            "baseName": "message",
+            "type": "string"
+        }    ];
+
+    static getAttributeTypeMap() {
+        return ClientVersionCheck400Response.attributeTypeMap;
+    }
+}
+

sdk/nodejs/sdk/src/zrok/api/model/clientVersionCheckRequest.ts

@@ -0,0 +1,31 @@
+/**
+ * zrok
+ * zrok client access
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+import { RequestFile } from './models';
+
+export class ClientVersionCheckRequest {
+    'clientVersion'?: string;
+
+    static discriminator: string | undefined = undefined;
+
+    static attributeTypeMap: Array<{name: string, baseName: string, type: string}> = [
+        {
+            "name": "clientVersion",
+            "baseName": "clientVersion",
+            "type": "string"
+        }    ];
+
+    static getAttributeTypeMap() {
+        return ClientVersionCheckRequest.attributeTypeMap;
+    }
+}
+

sdk/nodejs/sdk/src/zrok/api/model/models.ts

@@ -5,6 +5,7 @@ export * from './accessRequest';
 export * from './addOrganizationMemberRequest';
 export * from './authUser';
 export * from './changePasswordRequest';
+export * from './clientVersionCheckRequest';
 export * from './configuration';
 export * from './createFrontend201Response';
 export * from './createFrontendRequest';
@@ -68,6 +69,7 @@ import { AccessRequest } from './accessRequest';
 import { AddOrganizationMemberRequest } from './addOrganizationMemberRequest';
 import { AuthUser } from './authUser';
 import { ChangePasswordRequest } from './changePasswordRequest';
+import { ClientVersionCheckRequest } from './clientVersionCheckRequest';
 import { Configuration } from './configuration';
 import { CreateFrontend201Response } from './createFrontend201Response';
 import { CreateFrontendRequest } from './createFrontendRequest';
@@ -139,6 +141,7 @@ let typeMap: {[index: string]: any} = {
     "AddOrganizationMemberRequest": AddOrganizationMemberRequest,
     "AuthUser": AuthUser,
     "ChangePasswordRequest": ChangePasswordRequest,
+    "ClientVersionCheckRequest": ClientVersionCheckRequest,
     "Configuration": Configuration,
     "CreateFrontend201Response": CreateFrontend201Response,
     "CreateFrontendRequest": CreateFrontendRequest,

sdk/python/sdk/zrok/README.md

@@ -170,6 +170,7 @@ Class | Method | HTTP request | Description
 *AdminApi* | [**update_frontend**](docs/AdminApi.md#update_frontend) | **PATCH** /frontend | 
 *EnvironmentApi* | [**disable**](docs/EnvironmentApi.md#disable) | **POST** /disable | 
 *EnvironmentApi* | [**enable**](docs/EnvironmentApi.md#enable) | **POST** /enable | 
+*MetadataApi* | [**client_version_check**](docs/MetadataApi.md#client_version_check) | **POST** /version | 
 *MetadataApi* | [**configuration**](docs/MetadataApi.md#configuration) | **GET** /configuration | 
 *MetadataApi* | [**get_account_detail**](docs/MetadataApi.md#get_account_detail) | **GET** /detail/account | 
 *MetadataApi* | [**get_account_metrics**](docs/MetadataApi.md#get_account_metrics) | **GET** /metrics/account | 
@@ -254,6 +255,7 @@ Class | Method | HTTP request | Description
  - [UnshareBody](docs/UnshareBody.md)
  - [VerifyBody](docs/VerifyBody.md)
  - [Version](docs/Version.md)
+ - [VersionBody](docs/VersionBody.md)
 
 ## Documentation For Authorization
 

sdk/python/sdk/zrok/docs/InlineResponse400.md

@@ -0,0 +1,9 @@
+# InlineResponse400
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**message** | **str** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+

sdk/python/sdk/zrok/docs/MetadataApi.md

@@ -4,6 +4,7 @@ All URIs are relative to */api/v1*
 
 Method | HTTP request | Description
 ------------- | ------------- | -------------
+[**client_version_check**](MetadataApi.md#client_version_check) | **POST** /version | 
 [**configuration**](MetadataApi.md#configuration) | **GET** /configuration | 
 [**get_account_detail**](MetadataApi.md#get_account_detail) | **GET** /detail/account | 
 [**get_account_metrics**](MetadataApi.md#get_account_metrics) | **GET** /metrics/account | 
@@ -19,6 +20,50 @@ Method | HTTP request | Description
 [**overview**](MetadataApi.md#overview) | **GET** /overview | 
 [**version**](MetadataApi.md#version) | **GET** /version | 
 
+# **client_version_check**
+> client_version_check(body=body)
+
+
+
+### Example
+```python
+from __future__ import print_function
+import time
+import zrok_api
+from zrok_api.rest import ApiException
+from pprint import pprint
+
+# create an instance of the API class
+api_instance = zrok_api.MetadataApi()
+body = zrok_api.VersionBody() # VersionBody |  (optional)
+
+try:
+    api_instance.client_version_check(body=body)
+except ApiException as e:
+    print("Exception when calling MetadataApi->client_version_check: %s\n" % e)
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**VersionBody**](VersionBody.md)|  | [optional] 
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/zrok.v1+json
+ - **Accept**: application/zrok.v1+json
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
 # **configuration**
 > Configuration configuration()
 

sdk/python/sdk/zrok/docs/VersionBody.md

@@ -0,0 +1,9 @@
+# VersionBody
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**client_version** | **str** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+

sdk/python/sdk/zrok/test/test_inline_response400.py

@@ -0,0 +1,39 @@
+# coding: utf-8
+
+"""
+    zrok
+
+    zrok client access  # noqa: E501
+
+    OpenAPI spec version: 1.0.0
+    
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+"""
+
+from __future__ import absolute_import
+
+import unittest
+
+import zrok_api
+from zrok_api.models.inline_response400 import InlineResponse400  # noqa: E501
+from zrok_api.rest import ApiException
+
+
+class TestInlineResponse400(unittest.TestCase):
+    """InlineResponse400 unit test stubs"""
+
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def testInlineResponse400(self):
+        """Test InlineResponse400"""
+        # FIXME: construct object with mandatory attributes with example values
+        # model = zrok_api.models.inline_response400.InlineResponse400()  # noqa: E501
+        pass
+
+
+if __name__ == '__main__':
+    unittest.main()

sdk/python/sdk/zrok/test/test_version_body.py

@@ -0,0 +1,39 @@
+# coding: utf-8
+
+"""
+    zrok
+
+    zrok client access  # noqa: E501
+
+    OpenAPI spec version: 1.0.0
+    
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+"""
+
+from __future__ import absolute_import
+
+import unittest
+
+import zrok_api
+from zrok_api.models.version_body import VersionBody  # noqa: E501
+from zrok_api.rest import ApiException
+
+
+class TestVersionBody(unittest.TestCase):
+    """VersionBody unit test stubs"""
+
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def testVersionBody(self):
+        """Test VersionBody"""
+        # FIXME: construct object with mandatory attributes with example values
+        # model = zrok_api.models.version_body.VersionBody()  # noqa: E501
+        pass
+
+
+if __name__ == '__main__':
+    unittest.main()

sdk/python/sdk/zrok/zrok_api/__init__.py

@@ -85,3 +85,4 @@ from zrok_api.models.unaccess_body import UnaccessBody
 from zrok_api.models.unshare_body import UnshareBody
 from zrok_api.models.verify_body import VerifyBody
 from zrok_api.models.version import Version
+from zrok_api.models.version_body import VersionBody

sdk/python/sdk/zrok/zrok_api/api/metadata_api.py

@@ -32,6 +32,99 @@ class MetadataApi(object):
             api_client = ApiClient()
         self.api_client = api_client
 
+    def client_version_check(self, **kwargs):  # noqa: E501
+        """client_version_check  # noqa: E501
+
+        This method makes a synchronous HTTP request by default. To make an
+        asynchronous HTTP request, please pass async_req=True
+        >>> thread = api.client_version_check(async_req=True)
+        >>> result = thread.get()
+
+        :param async_req bool
+        :param VersionBody body:
+        :return: None
+                 If the method is called asynchronously,
+                 returns the request thread.
+        """
+        kwargs['_return_http_data_only'] = True
+        if kwargs.get('async_req'):
+            return self.client_version_check_with_http_info(**kwargs)  # noqa: E501
+        else:
+            (data) = self.client_version_check_with_http_info(**kwargs)  # noqa: E501
+            return data
+
+    def client_version_check_with_http_info(self, **kwargs):  # noqa: E501
+        """client_version_check  # noqa: E501
+
+        This method makes a synchronous HTTP request by default. To make an
+        asynchronous HTTP request, please pass async_req=True
+        >>> thread = api.client_version_check_with_http_info(async_req=True)
+        >>> result = thread.get()
+
+        :param async_req bool
+        :param VersionBody body:
+        :return: None
+                 If the method is called asynchronously,
+                 returns the request thread.
+        """
+
+        all_params = ['body']  # noqa: E501
+        all_params.append('async_req')
+        all_params.append('_return_http_data_only')
+        all_params.append('_preload_content')
+        all_params.append('_request_timeout')
+
+        params = locals()
+        for key, val in six.iteritems(params['kwargs']):
+            if key not in all_params:
+                raise TypeError(
+                    "Got an unexpected keyword argument '%s'"
+                    " to method client_version_check" % key
+                )
+            params[key] = val
+        del params['kwargs']
+
+        collection_formats = {}
+
+        path_params = {}
+
+        query_params = []
+
+        header_params = {}
+
+        form_params = []
+        local_var_files = {}
+
+        body_params = None
+        if 'body' in params:
+            body_params = params['body']
+        # HTTP header `Accept`
+        header_params['Accept'] = self.api_client.select_header_accept(
+            ['application/zrok.v1+json'])  # noqa: E501
+
+        # HTTP header `Content-Type`
+        header_params['Content-Type'] = self.api_client.select_header_content_type(  # noqa: E501
+            ['application/zrok.v1+json'])  # noqa: E501
+
+        # Authentication setting
+        auth_settings = []  # noqa: E501
+
+        return self.api_client.call_api(
+            '/version', 'POST',
+            path_params,
+            query_params,
+            header_params,
+            body=body_params,
+            post_params=form_params,
+            files=local_var_files,
+            response_type=None,  # noqa: E501
+            auth_settings=auth_settings,
+            async_req=params.get('async_req'),
+            _return_http_data_only=params.get('_return_http_data_only'),
+            _preload_content=params.get('_preload_content', True),
+            _request_timeout=params.get('_request_timeout'),
+            collection_formats=collection_formats)
+
     def configuration(self, **kwargs):  # noqa: E501
         """configuration  # noqa: E501
 

sdk/python/sdk/zrok/zrok_api/models/__init__.py

@@ -75,3 +75,4 @@ from zrok_api.models.unaccess_body import UnaccessBody
 from zrok_api.models.unshare_body import UnshareBody
 from zrok_api.models.verify_body import VerifyBody
 from zrok_api.models.version import Version
+from zrok_api.models.version_body import VersionBody

sdk/python/sdk/zrok/zrok_api/models/inline_response400.py

@@ -0,0 +1,110 @@
+# coding: utf-8
+
+"""
+    zrok
+
+    zrok client access  # noqa: E501
+
+    OpenAPI spec version: 1.0.0
+    
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+"""
+
+import pprint
+import re  # noqa: F401
+
+import six
+
+class InlineResponse400(object):
+    """NOTE: This class is auto generated by the swagger code generator program.
+
+    Do not edit the class manually.
+    """
+    """
+    Attributes:
+      swagger_types (dict): The key is attribute name
+                            and the value is attribute type.
+      attribute_map (dict): The key is attribute name
+                            and the value is json key in definition.
+    """
+    swagger_types = {
+        'message': 'str'
+    }
+
+    attribute_map = {
+        'message': 'message'
+    }
+
+    def __init__(self, message=None):  # noqa: E501
+        """InlineResponse400 - a model defined in Swagger"""  # noqa: E501
+        self._message = None
+        self.discriminator = None
+        if message is not None:
+            self.message = message
+
+    @property
+    def message(self):
+        """Gets the message of this InlineResponse400.  # noqa: E501
+
+
+        :return: The message of this InlineResponse400.  # noqa: E501
+        :rtype: str
+        """
+        return self._message
+
+    @message.setter
+    def message(self, message):
+        """Sets the message of this InlineResponse400.
+
+
+        :param message: The message of this InlineResponse400.  # noqa: E501
+        :type: str
+        """
+
+        self._message = message
+
+    def to_dict(self):
+        """Returns the model properties as a dict"""
+        result = {}
+
+        for attr, _ in six.iteritems(self.swagger_types):
+            value = getattr(self, attr)
+            if isinstance(value, list):
+                result[attr] = list(map(
+                    lambda x: x.to_dict() if hasattr(x, "to_dict") else x,
+                    value
+                ))
+            elif hasattr(value, "to_dict"):
+                result[attr] = value.to_dict()
+            elif isinstance(value, dict):
+                result[attr] = dict(map(
+                    lambda item: (item[0], item[1].to_dict())
+                    if hasattr(item[1], "to_dict") else item,
+                    value.items()
+                ))
+            else:
+                result[attr] = value
+        if issubclass(InlineResponse400, dict):
+            for key, value in self.items():
+                result[key] = value
+
+        return result
+
+    def to_str(self):
+        """Returns the string representation of the model"""
+        return pprint.pformat(self.to_dict())
+
+    def __repr__(self):
+        """For `print` and `pprint`"""
+        return self.to_str()
+
+    def __eq__(self, other):
+        """Returns true if both objects are equal"""
+        if not isinstance(other, InlineResponse400):
+            return False
+
+        return self.__dict__ == other.__dict__
+
+    def __ne__(self, other):
+        """Returns true if both objects are not equal"""
+        return not self == other

sdk/python/sdk/zrok/zrok_api/models/version_body.py

@@ -0,0 +1,110 @@
+# coding: utf-8
+
+"""
+    zrok
+
+    zrok client access  # noqa: E501
+
+    OpenAPI spec version: 1.0.0
+    
+    Generated by: https://github.com/swagger-api/swagger-codegen.git
+"""
+
+import pprint
+import re  # noqa: F401
+
+import six
+
+class VersionBody(object):
+    """NOTE: This class is auto generated by the swagger code generator program.
+
+    Do not edit the class manually.
+    """
+    """
+    Attributes:
+      swagger_types (dict): The key is attribute name
+                            and the value is attribute type.
+      attribute_map (dict): The key is attribute name
+                            and the value is json key in definition.
+    """
+    swagger_types = {
+        'client_version': 'str'
+    }
+
+    attribute_map = {
+        'client_version': 'clientVersion'
+    }
+
+    def __init__(self, client_version=None):  # noqa: E501
+        """VersionBody - a model defined in Swagger"""  # noqa: E501
+        self._client_version = None
+        self.discriminator = None
+        if client_version is not None:
+            self.client_version = client_version
+
+    @property
+    def client_version(self):
+        """Gets the client_version of this VersionBody.  # noqa: E501
+
+
+        :return: The client_version of this VersionBody.  # noqa: E501
+        :rtype: str
+        """
+        return self._client_version
+
+    @client_version.setter
+    def client_version(self, client_version):
+        """Sets the client_version of this VersionBody.
+
+
+        :param client_version: The client_version of this VersionBody.  # noqa: E501
+        :type: str
+        """
+
+        self._client_version = client_version
+
+    def to_dict(self):
+        """Returns the model properties as a dict"""
+        result = {}
+
+        for attr, _ in six.iteritems(self.swagger_types):
+            value = getattr(self, attr)
+            if isinstance(value, list):
+                result[attr] = list(map(
+                    lambda x: x.to_dict() if hasattr(x, "to_dict") else x,
+                    value
+                ))
+            elif hasattr(value, "to_dict"):
+                result[attr] = value.to_dict()
+            elif isinstance(value, dict):
+                result[attr] = dict(map(
+                    lambda item: (item[0], item[1].to_dict())
+                    if hasattr(item[1], "to_dict") else item,
+                    value.items()
+                ))
+            else:
+                result[attr] = value
+        if issubclass(VersionBody, dict):
+            for key, value in self.items():
+                result[key] = value
+
+        return result
+
+    def to_str(self):
+        """Returns the string representation of the model"""
+        return pprint.pformat(self.to_dict())
+
+    def __repr__(self):
+        """For `print` and `pprint`"""
+        return self.to_str()
+
+    def __eq__(self, other):
+        """Returns true if both objects are equal"""
+        if not isinstance(other, VersionBody):
+            return False
+
+        return self.__dict__ == other.__dict__
+
+    def __ne__(self, other):
+        """Returns true if both objects are not equal"""
+        return not self == other

specs/zrok.yml

@@ -991,6 +991,24 @@ paths:
           description: legacy upgrade required
           schema:
             $ref: "#/definitions/version"
+    post:
+      tags:
+        - metadata
+      operationId: clientVersionCheck
+      parameters:
+        - name: body
+          in: body
+          schema:
+            properties:
+              clientVersion:
+                type: string
+      responses:
+        200:
+          description: compatible
+        400:
+          description: not compatible
+          schema:
+            type: string
 
   #
   # share

ui/src/api/.openapi-generator/FILES

@@ -10,6 +10,7 @@ models/AccessRequest.ts
 models/AddOrganizationMemberRequest.ts
 models/AuthUser.ts
 models/ChangePasswordRequest.ts
+models/ClientVersionCheckRequest.ts
 models/CreateFrontend201Response.ts
 models/CreateFrontendRequest.ts
 models/CreateIdentity201Response.ts

ui/src/api/apis/MetadataApi.ts

@@ -15,6 +15,7 @@
 
 import * as runtime from '../runtime';
 import type {
+  ClientVersionCheckRequest,
   Environment,
   EnvironmentAndResources,
   Frontend,
@@ -28,6 +29,8 @@ import type {
   Share,
 } from '../models/index';
 import {
+    ClientVersionCheckRequestFromJSON,
+    ClientVersionCheckRequestToJSON,
     EnvironmentFromJSON,
     EnvironmentToJSON,
     EnvironmentAndResourcesFromJSON,
@@ -52,6 +55,10 @@ import {
     ShareToJSON,
 } from '../models/index';
 
+export interface ClientVersionCheckOperationRequest {
+    body?: ClientVersionCheckRequest;
+}
+
 export interface GetAccountMetricsRequest {
     duration?: string;
 }
@@ -120,6 +127,32 @@ export class MetadataApi extends runtime.BaseAPI {
         return await response.value();
     }
 
+    /**
+     */
+    async clientVersionCheckRaw(requestParameters: ClientVersionCheckOperationRequest, initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<runtime.ApiResponse<void>> {
+        const queryParameters: any = {};
+
+        const headerParameters: runtime.HTTPHeaders = {};
+
+        headerParameters['Content-Type'] = 'application/zrok.v1+json';
+
+        const response = await this.request({
+            path: `/version`,
+            method: 'POST',
+            headers: headerParameters,
+            query: queryParameters,
+            body: ClientVersionCheckRequestToJSON(requestParameters['body']),
+        }, initOverrides);
+
+        return new runtime.VoidApiResponse(response);
+    }
+
+    /**
+     */
+    async clientVersionCheck(requestParameters: ClientVersionCheckOperationRequest = {}, initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<void> {
+        await this.clientVersionCheckRaw(requestParameters, initOverrides);
+    }
+
     /**
      */
     async getAccountDetailRaw(initOverrides?: RequestInit | runtime.InitOverrideFunction): Promise<runtime.ApiResponse<Array<Environment>>> {

ui/src/api/models/ClientVersionCheck400Response.ts

@@ -0,0 +1,60 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * zrok
+ * zrok client access
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+import { mapValues } from '../runtime';
+/**
+ * 
+ * @export
+ * @interface ClientVersionCheck400Response
+ */
+export interface ClientVersionCheck400Response {
+    /**
+     * 
+     * @type {string}
+     * @memberof ClientVersionCheck400Response
+     */
+    message?: string;
+}
+
+/**
+ * Check if a given object implements the ClientVersionCheck400Response interface.
+ */
+export function instanceOfClientVersionCheck400Response(value: object): value is ClientVersionCheck400Response {
+    return true;
+}
+
+export function ClientVersionCheck400ResponseFromJSON(json: any): ClientVersionCheck400Response {
+    return ClientVersionCheck400ResponseFromJSONTyped(json, false);
+}
+
+export function ClientVersionCheck400ResponseFromJSONTyped(json: any, ignoreDiscriminator: boolean): ClientVersionCheck400Response {
+    if (json == null) {
+        return json;
+    }
+    return {
+        
+        'message': json['message'] == null ? undefined : json['message'],
+    };
+}
+
+export function ClientVersionCheck400ResponseToJSON(value?: ClientVersionCheck400Response | null): any {
+    if (value == null) {
+        return value;
+    }
+    return {
+        
+        'message': value['message'],
+    };
+}
+

ui/src/api/models/ClientVersionCheckRequest.ts

@@ -0,0 +1,60 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * zrok
+ * zrok client access
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+import { mapValues } from '../runtime';
+/**
+ * 
+ * @export
+ * @interface ClientVersionCheckRequest
+ */
+export interface ClientVersionCheckRequest {
+    /**
+     * 
+     * @type {string}
+     * @memberof ClientVersionCheckRequest
+     */
+    clientVersion?: string;
+}
+
+/**
+ * Check if a given object implements the ClientVersionCheckRequest interface.
+ */
+export function instanceOfClientVersionCheckRequest(value: object): value is ClientVersionCheckRequest {
+    return true;
+}
+
+export function ClientVersionCheckRequestFromJSON(json: any): ClientVersionCheckRequest {
+    return ClientVersionCheckRequestFromJSONTyped(json, false);
+}
+
+export function ClientVersionCheckRequestFromJSONTyped(json: any, ignoreDiscriminator: boolean): ClientVersionCheckRequest {
+    if (json == null) {
+        return json;
+    }
+    return {
+        
+        'clientVersion': json['clientVersion'] == null ? undefined : json['clientVersion'],
+    };
+}
+
+export function ClientVersionCheckRequestToJSON(value?: ClientVersionCheckRequest | null): any {
+    if (value == null) {
+        return value;
+    }
+    return {
+        
+        'clientVersion': value['clientVersion'],
+    };
+}
+

ui/src/api/models/index.ts

@@ -5,6 +5,7 @@ export * from './AccessRequest';
 export * from './AddOrganizationMemberRequest';
 export * from './AuthUser';
 export * from './ChangePasswordRequest';
+export * from './ClientVersionCheckRequest';
 export * from './CreateFrontend201Response';
 export * from './CreateFrontendRequest';
 export * from './CreateIdentity201Response';