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package kong
import (
"context"
"encoding/json"
"errors"
"fmt"
)
// PluginService handles Plugins in Kong.
type PluginService service
// Create creates a Plugin in Kong.
// If an ID is specified, it will be used to
// create a plugin in Kong, otherwise an ID
// is auto-generated.
func (s *PluginService) Create(ctx context.Context,
plugin *Plugin) (*Plugin, error) {
queryPath := "/plugins"
method := "POST"
if plugin.ID != nil {
queryPath = queryPath + "/" + *plugin.ID
method = "PUT"
}
req, err := s.client.NewRequest(method, queryPath, nil, plugin)
if err != nil {
return nil, err
}
var createdPlugin Plugin
_, err = s.client.Do(ctx, req, &createdPlugin)
if err != nil {
return nil, err
}
return &createdPlugin, nil
}
// Get fetches a Plugin in Kong.
func (s *PluginService) Get(ctx context.Context,
usernameOrID *string) (*Plugin, error) {
if isEmptyString(usernameOrID) {
return nil, errors.New("usernameOrID cannot be nil for Get operation")
}
endpoint := fmt.Sprintf("/plugins/%v", *usernameOrID)
req, err := s.client.NewRequest("GET", endpoint, nil, nil)
if err != nil {
return nil, err
}
var plugin Plugin
_, err = s.client.Do(ctx, req, &plugin)
if err != nil {
return nil, err
}
return &plugin, nil
}
// Update updates a Plugin in Kong
func (s *PluginService) Update(ctx context.Context,
plugin *Plugin) (*Plugin, error) {
if isEmptyString(plugin.ID) {
return nil, errors.New("ID cannot be nil for Update operation")
}
endpoint := fmt.Sprintf("/plugins/%v", *plugin.ID)
req, err := s.client.NewRequest("PATCH", endpoint, nil, plugin)
if err != nil {
return nil, err
}
var updatedAPI Plugin
_, err = s.client.Do(ctx, req, &updatedAPI)
if err != nil {
return nil, err
}
return &updatedAPI, nil
}
// Delete deletes a Plugin in Kong
func (s *PluginService) Delete(ctx context.Context,
usernameOrID *string) error {
if isEmptyString(usernameOrID) {
return errors.New("usernameOrID cannot be nil for Delete operation")
}
endpoint := fmt.Sprintf("/plugins/%v", *usernameOrID)
req, err := s.client.NewRequest("DELETE", endpoint, nil, nil)
if err != nil {
return err
}
_, err = s.client.Do(ctx, req, nil)
return err
}
// listByPath fetches a list of Plugins in Kong
// on a specific path.
// This is a helper method for listing all plugins
// or plugins for specific entities.
func (s *PluginService) listByPath(ctx context.Context,
path string, opt *ListOpt) ([]*Plugin, *ListOpt, error) {
data, next, err := s.client.list(ctx, path, opt)
if err != nil {
return nil, nil, err
}
var plugins []*Plugin
for _, object := range data {
b, err := object.MarshalJSON()
if err != nil {
return nil, nil, err
}
var plugin Plugin
err = json.Unmarshal(b, &plugin)
if err != nil {
return nil, nil, err
}
plugins = append(plugins, &plugin)
}
return plugins, next, nil
}
// ListAll fetches all Plugins in Kong.
// This method can take a while if there
// a lot of Plugins present.
func (s *PluginService) listAllByPath(ctx context.Context,
path string) ([]*Plugin, error) {
var plugins, data []*Plugin
var err error
opt := &ListOpt{Size: pageSize}
for opt != nil {
data, opt, err = s.listByPath(ctx, path, opt)
if err != nil {
return nil, err
}
plugins = append(plugins, data...)
}
return plugins, nil
}
// List fetches a list of Plugins in Kong.
// opt can be used to control pagination.
func (s *PluginService) List(ctx context.Context,
opt *ListOpt) ([]*Plugin, *ListOpt, error) {
return s.listByPath(ctx, "/plugins", opt)
}
// ListAll fetches all Plugins in Kong.
// This method can take a while if there
// a lot of Plugins present.
func (s *PluginService) ListAll(ctx context.Context) ([]*Plugin, error) {
return s.listAllByPath(ctx, "/plugins")
}
// ListAllForConsumer fetches all Plugins in Kong enabled for a consumer.
func (s *PluginService) ListAllForConsumer(ctx context.Context,
consumerIDorName *string) ([]*Plugin, error) {
if isEmptyString(consumerIDorName) {
return nil, errors.New("consumerIDorName cannot be nil")
}
return s.listAllByPath(ctx, "/consumers/"+*consumerIDorName+"/plugins")
}
// ListAllForService fetches all Plugins in Kong enabled for a service.
func (s *PluginService) ListAllForService(ctx context.Context,
serviceIDorName *string) ([]*Plugin, error) {
if isEmptyString(serviceIDorName) {
return nil, errors.New("serviceIDorName cannot be nil")
}
return s.listAllByPath(ctx, "/services/"+*serviceIDorName+"/plugins")
}
// ListAllForRoute fetches all Plugins in Kong enabled for a service.
func (s *PluginService) ListAllForRoute(ctx context.Context,
routeID *string) ([]*Plugin, error) {
if isEmptyString(routeID) {
return nil, errors.New("routeID cannot be nil")
}
return s.listAllByPath(ctx, "/routes/"+*routeID+"/plugins")
}
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