apioperationpolicy.go

package apimanagement

// Copyright (c) Microsoft and contributors.  All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Code generated by Microsoft (R) AutoRest Code Generator.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

import (
	"context"
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/Azure/go-autorest/autorest/validation"
	"github.com/Azure/go-autorest/tracing"
	"net/http"
)

// APIOperationPolicyClient is the apiManagement Client
type APIOperationPolicyClient struct {
	BaseClient
}

// NewAPIOperationPolicyClient creates an instance of the APIOperationPolicyClient client.
func NewAPIOperationPolicyClient(subscriptionID string) APIOperationPolicyClient {
	return NewAPIOperationPolicyClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewAPIOperationPolicyClientWithBaseURI creates an instance of the APIOperationPolicyClient client using a custom
// endpoint.  Use this when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure
// stack).
func NewAPIOperationPolicyClientWithBaseURI(baseURI string, subscriptionID string) APIOperationPolicyClient {
	return APIOperationPolicyClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// CreateOrUpdate creates or updates policy configuration for the API Operation level.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// apiid - API revision identifier. Must be unique in the current API Management service instance. Non-current
// revision has ;rev=n as a suffix where n is the revision number.
// operationID - operation identifier within an API. Must be unique in the current API Management service
// instance.
// parameters - the policy contents to apply.
// ifMatch - the entity state (Etag) version of the Api Operation policy to update. A value of "*" can be used
// for If-Match to unconditionally apply the operation.
func (client APIOperationPolicyClient) CreateOrUpdate(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string, parameters PolicyContract, ifMatch string) (result PolicyContract, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/APIOperationPolicyClient.CreateOrUpdate")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: apiid,
			Constraints: []validation.Constraint{{Target: "apiid", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "apiid", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "apiid", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: operationID,
			Constraints: []validation.Constraint{{Target: "operationID", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "operationID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "operationID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: parameters,
			Constraints: []validation.Constraint{{Target: "parameters.PolicyContractProperties", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "parameters.PolicyContractProperties.PolicyContent", Name: validation.Null, Rule: true, Chain: nil}}}}}}); err != nil {
		return result, validation.NewError("apimanagement.APIOperationPolicyClient", "CreateOrUpdate", err.Error())
	}

	req, err := client.CreateOrUpdatePreparer(ctx, resourceGroupName, serviceName, apiid, operationID, parameters, ifMatch)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "CreateOrUpdate", nil, "Failure preparing request")
		return
	}

	resp, err := client.CreateOrUpdateSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "CreateOrUpdate", resp, "Failure sending request")
		return
	}

	result, err = client.CreateOrUpdateResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "CreateOrUpdate", resp, "Failure responding to request")
		return
	}

	return
}

// CreateOrUpdatePreparer prepares the CreateOrUpdate request.
func (client APIOperationPolicyClient) CreateOrUpdatePreparer(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string, parameters PolicyContract, ifMatch string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"apiId":             autorest.Encode("path", apiid),
		"operationId":       autorest.Encode("path", operationID),
		"policyId":          autorest.Encode("path", "policy"),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-03-01"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsContentType("application/json; charset=utf-8"),
		autorest.AsPut(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/apis/{apiId}/operations/{operationId}/policies/{policyId}", pathParameters),
		autorest.WithJSON(parameters),
		autorest.WithQueryParameters(queryParameters),
		autorest.WithHeader("If-Match", autorest.String(ifMatch)))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// CreateOrUpdateSender sends the CreateOrUpdate request. The method will close the
// http.Response Body if it receives an error.
func (client APIOperationPolicyClient) CreateOrUpdateSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// CreateOrUpdateResponder handles the response to the CreateOrUpdate request. The method always
// closes the http.Response Body.
func (client APIOperationPolicyClient) CreateOrUpdateResponder(resp *http.Response) (result PolicyContract, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusCreated),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// Delete deletes the policy configuration at the Api Operation.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// apiid - API identifier. Must be unique in the current API Management service instance.
// operationID - operation identifier within an API. Must be unique in the current API Management service
// instance.
// ifMatch - the entity state (Etag) version of the Api Operation Policy to delete. A value of "*" can be used
// for If-Match to unconditionally apply the operation.
func (client APIOperationPolicyClient) Delete(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string, ifMatch string) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/APIOperationPolicyClient.Delete")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: apiid,
			Constraints: []validation.Constraint{{Target: "apiid", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "apiid", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "apiid", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: operationID,
			Constraints: []validation.Constraint{{Target: "operationID", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "operationID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "operationID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.APIOperationPolicyClient", "Delete", err.Error())
	}

	req, err := client.DeletePreparer(ctx, resourceGroupName, serviceName, apiid, operationID, ifMatch)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "Delete", nil, "Failure preparing request")
		return
	}

	resp, err := client.DeleteSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "Delete", resp, "Failure sending request")
		return
	}

	result, err = client.DeleteResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "Delete", resp, "Failure responding to request")
		return
	}

	return
}

// DeletePreparer prepares the Delete request.
func (client APIOperationPolicyClient) DeletePreparer(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string, ifMatch string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"apiId":             autorest.Encode("path", apiid),
		"operationId":       autorest.Encode("path", operationID),
		"policyId":          autorest.Encode("path", "policy"),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-03-01"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsDelete(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/apis/{apiId}/operations/{operationId}/policies/{policyId}", pathParameters),
		autorest.WithQueryParameters(queryParameters),
		autorest.WithHeader("If-Match", autorest.String(ifMatch)))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// DeleteSender sends the Delete request. The method will close the
// http.Response Body if it receives an error.
func (client APIOperationPolicyClient) DeleteSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// DeleteResponder handles the response to the Delete request. The method always
// closes the http.Response Body.
func (client APIOperationPolicyClient) DeleteResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK, http.StatusNoContent),
		autorest.ByClosing())
	result.Response = resp
	return
}

// Get get the policy configuration at the API Operation level.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// apiid - API revision identifier. Must be unique in the current API Management service instance. Non-current
// revision has ;rev=n as a suffix where n is the revision number.
// operationID - operation identifier within an API. Must be unique in the current API Management service
// instance.
func (client APIOperationPolicyClient) Get(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string) (result PolicyContract, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/APIOperationPolicyClient.Get")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: apiid,
			Constraints: []validation.Constraint{{Target: "apiid", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "apiid", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "apiid", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: operationID,
			Constraints: []validation.Constraint{{Target: "operationID", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "operationID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "operationID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.APIOperationPolicyClient", "Get", err.Error())
	}

	req, err := client.GetPreparer(ctx, resourceGroupName, serviceName, apiid, operationID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "Get", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "Get", resp, "Failure sending request")
		return
	}

	result, err = client.GetResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "Get", resp, "Failure responding to request")
		return
	}

	return
}

// GetPreparer prepares the Get request.
func (client APIOperationPolicyClient) GetPreparer(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"apiId":             autorest.Encode("path", apiid),
		"operationId":       autorest.Encode("path", operationID),
		"policyId":          autorest.Encode("path", "policy"),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-03-01"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/apis/{apiId}/operations/{operationId}/policies/{policyId}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetSender sends the Get request. The method will close the
// http.Response Body if it receives an error.
func (client APIOperationPolicyClient) GetSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// GetResponder handles the response to the Get request. The method always
// closes the http.Response Body.
func (client APIOperationPolicyClient) GetResponder(resp *http.Response) (result PolicyContract, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// GetEntityTag gets the entity state (Etag) version of the API operation policy specified by its identifier.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// apiid - API identifier. Must be unique in the current API Management service instance.
// operationID - operation identifier within an API. Must be unique in the current API Management service
// instance.
func (client APIOperationPolicyClient) GetEntityTag(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string) (result autorest.Response, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/APIOperationPolicyClient.GetEntityTag")
		defer func() {
			sc := -1
			if result.Response != nil {
				sc = result.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: apiid,
			Constraints: []validation.Constraint{{Target: "apiid", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "apiid", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "apiid", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: operationID,
			Constraints: []validation.Constraint{{Target: "operationID", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "operationID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "operationID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.APIOperationPolicyClient", "GetEntityTag", err.Error())
	}

	req, err := client.GetEntityTagPreparer(ctx, resourceGroupName, serviceName, apiid, operationID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "GetEntityTag", nil, "Failure preparing request")
		return
	}

	resp, err := client.GetEntityTagSender(req)
	if err != nil {
		result.Response = resp
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "GetEntityTag", resp, "Failure sending request")
		return
	}

	result, err = client.GetEntityTagResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "GetEntityTag", resp, "Failure responding to request")
		return
	}

	return
}

// GetEntityTagPreparer prepares the GetEntityTag request.
func (client APIOperationPolicyClient) GetEntityTagPreparer(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"apiId":             autorest.Encode("path", apiid),
		"operationId":       autorest.Encode("path", operationID),
		"policyId":          autorest.Encode("path", "policy"),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-03-01"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsHead(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/apis/{apiId}/operations/{operationId}/policies/{policyId}", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// GetEntityTagSender sends the GetEntityTag request. The method will close the
// http.Response Body if it receives an error.
func (client APIOperationPolicyClient) GetEntityTagSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// GetEntityTagResponder handles the response to the GetEntityTag request. The method always
// closes the http.Response Body.
func (client APIOperationPolicyClient) GetEntityTagResponder(resp *http.Response) (result autorest.Response, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByClosing())
	result.Response = resp
	return
}

// ListByOperation get the list of policy configuration at the API Operation level.
// Parameters:
// resourceGroupName - the name of the resource group.
// serviceName - the name of the API Management service.
// apiid - API revision identifier. Must be unique in the current API Management service instance. Non-current
// revision has ;rev=n as a suffix where n is the revision number.
// operationID - operation identifier within an API. Must be unique in the current API Management service
// instance.
func (client APIOperationPolicyClient) ListByOperation(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string) (result PolicyCollection, err error) {
	if tracing.IsEnabled() {
		ctx = tracing.StartSpan(ctx, fqdn+"/APIOperationPolicyClient.ListByOperation")
		defer func() {
			sc := -1
			if result.Response.Response != nil {
				sc = result.Response.Response.StatusCode
			}
			tracing.EndSpan(ctx, sc, err)
		}()
	}
	if err := validation.Validate([]validation.Validation{
		{TargetValue: serviceName,
			Constraints: []validation.Constraint{{Target: "serviceName", Name: validation.MaxLength, Rule: 50, Chain: nil},
				{Target: "serviceName", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "serviceName", Name: validation.Pattern, Rule: `^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$`, Chain: nil}}},
		{TargetValue: apiid,
			Constraints: []validation.Constraint{{Target: "apiid", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "apiid", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "apiid", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}},
		{TargetValue: operationID,
			Constraints: []validation.Constraint{{Target: "operationID", Name: validation.MaxLength, Rule: 256, Chain: nil},
				{Target: "operationID", Name: validation.MinLength, Rule: 1, Chain: nil},
				{Target: "operationID", Name: validation.Pattern, Rule: `^[^*#&+:<>?]+$`, Chain: nil}}}}); err != nil {
		return result, validation.NewError("apimanagement.APIOperationPolicyClient", "ListByOperation", err.Error())
	}

	req, err := client.ListByOperationPreparer(ctx, resourceGroupName, serviceName, apiid, operationID)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "ListByOperation", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListByOperationSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "ListByOperation", resp, "Failure sending request")
		return
	}

	result, err = client.ListByOperationResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "apimanagement.APIOperationPolicyClient", "ListByOperation", resp, "Failure responding to request")
		return
	}

	return
}

// ListByOperationPreparer prepares the ListByOperation request.
func (client APIOperationPolicyClient) ListByOperationPreparer(ctx context.Context, resourceGroupName string, serviceName string, apiid string, operationID string) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"apiId":             autorest.Encode("path", apiid),
		"operationId":       autorest.Encode("path", operationID),
		"resourceGroupName": autorest.Encode("path", resourceGroupName),
		"serviceName":       autorest.Encode("path", serviceName),
		"subscriptionId":    autorest.Encode("path", client.SubscriptionID),
	}

	const APIVersion = "2017-03-01"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/apis/{apiId}/operations/{operationId}/policies", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare((&http.Request{}).WithContext(ctx))
}

// ListByOperationSender sends the ListByOperation request. The method will close the
// http.Response Body if it receives an error.
func (client APIOperationPolicyClient) ListByOperationSender(req *http.Request) (*http.Response, error) {
	return client.Send(req, azure.DoRetryWithRegistration(client.Client))
}

// ListByOperationResponder handles the response to the ListByOperation request. The method always
// closes the http.Response Body.
func (client APIOperationPolicyClient) ListByOperationResponder(resp *http.Response) (result PolicyCollection, err error) {
	err = autorest.Respond(
		resp,
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}