| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package eureka |
| |
| import ( |
| "context" |
| "encoding/json" |
| "fmt" |
| "io/ioutil" |
| "net/http" |
| "net/url" |
| |
| pb "github.com/apache/servicecomb-service-center/syncer/proto" |
| ) |
| |
| const ( |
| apiInstances = "/apps/%s" |
| apiInstance = "/apps/%s/%s" |
| ) |
| |
| // RegisterInstance register instance to servicecenter |
| func (c *Client) RegisterInstance(ctx context.Context, domainProject, serviceId string, syncInstance *pb.SyncInstance) (string, error) { |
| instance := toInstance(serviceId, syncInstance) |
| method := http.MethodPost |
| headers := c.CommonHeaders(method) |
| body, err := json.Marshal(&InstanceRequest{Instance: instance}) |
| if err != nil { |
| return "", err |
| } |
| |
| apiURL := fmt.Sprintf(apiInstances, serviceId) |
| resp, err := c.RestDoWithContext(ctx, method, apiURL, headers, body) |
| if err != nil { |
| return "", err |
| } |
| defer resp.Body.Close() |
| |
| body, err = ioutil.ReadAll(resp.Body) |
| if err != nil { |
| return "", err |
| } |
| if resp.StatusCode != http.StatusNoContent { |
| return "", c.toError(body) |
| } |
| |
| return instance.InstanceId, nil |
| } |
| |
| // UnregisterInstance unregister instance from servicecenter |
| func (c *Client) UnregisterInstance(ctx context.Context, domainProject, serviceId, instanceId string) error { |
| method := http.MethodDelete |
| headers := c.CommonHeaders(method) |
| |
| apiURL := fmt.Sprintf(apiInstance, serviceId, instanceId) |
| resp, err := c.RestDoWithContext(ctx, method, apiURL, headers, nil) |
| if err != nil { |
| return err |
| } |
| defer resp.Body.Close() |
| |
| body, err := ioutil.ReadAll(resp.Body) |
| if err != nil { |
| return err |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return c.toError(body) |
| } |
| |
| return nil |
| } |
| |
| // Heartbeat sends heartbeat to servicecenter |
| func (c *Client) Heartbeat(ctx context.Context, domainProject, serviceId, instanceId string) error { |
| method := http.MethodPut |
| headers := c.CommonHeaders(method) |
| apiURL := fmt.Sprintf(apiInstance, serviceId, instanceId) + "?" + url.Values{"status": {UP}}.Encode() |
| resp, err := c.RestDoWithContext(ctx, method, apiURL, headers, nil) |
| if err != nil { |
| return err |
| } |
| defer resp.Body.Close() |
| |
| body, err := ioutil.ReadAll(resp.Body) |
| if err != nil { |
| return err |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return c.toError(body) |
| } |
| |
| return nil |
| } |