| /* |
| * 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 client |
| |
| import ( |
| "context" |
| "encoding/json" |
| "fmt" |
| "io" |
| "net/http" |
| "net/url" |
| |
| "github.com/go-chassis/cari/discovery" |
| "github.com/go-chassis/cari/pkg/errsvc" |
| ) |
| |
| const ( |
| apiDiscoveryInstancesURL = "/v4/%s/registry/instances" |
| apiHeartbeatSetURL = "/v4/%s/registry/heartbeats" |
| apiInstancesURL = "/v4/%s/registry/microservices/%s/instances" |
| apiInstanceURL = "/v4/%s/registry/microservices/%s/instances/%s" |
| apiInstanceHeartbeatURL = "/v4/%s/registry/microservices/%s/instances/%s/heartbeat" |
| ) |
| |
| func (c *Client) RegisterInstance(ctx context.Context, domain, project, serviceID string, instance *discovery.MicroServiceInstance) (string, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| |
| reqBody, err := json.Marshal(&discovery.RegisterInstanceRequest{Instance: instance}) |
| if err != nil { |
| return "", discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| resp, err := c.RestDoWithContext(ctx, http.MethodPost, |
| fmt.Sprintf(apiInstancesURL, project, serviceID), |
| headers, reqBody) |
| if err != nil { |
| return "", discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return "", discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return "", c.toError(body) |
| } |
| |
| instancesResp := &discovery.RegisterInstanceResponse{} |
| err = json.Unmarshal(body, instancesResp) |
| if err != nil { |
| return "", discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| return instancesResp.InstanceId, nil |
| } |
| |
| func (c *Client) UnregisterInstance(ctx context.Context, domain, project, serviceID, instanceID string) *errsvc.Error { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| |
| resp, err := c.RestDoWithContext(ctx, http.MethodDelete, |
| fmt.Sprintf(apiInstanceURL, project, serviceID, instanceID), |
| headers, nil) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return c.toError(body) |
| } |
| |
| return nil |
| } |
| |
| func (c *Client) DiscoveryInstances(ctx context.Context, domain, project, consumerID, providerAppID, providerServiceName, providerVersionRule string) ([]*discovery.MicroServiceInstance, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| headers.Set("X-ConsumerId", consumerID) |
| |
| query := url.Values{} |
| query.Set("appId", providerAppID) |
| query.Set("serviceName", providerServiceName) |
| query.Set("version", providerVersionRule) |
| |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, |
| fmt.Sprintf(apiDiscoveryInstancesURL, project)+"?"+c.parseQuery(ctx)+"&"+query.Encode(), |
| headers, nil) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| instancesResp := &discovery.GetInstancesResponse{} |
| err = json.Unmarshal(body, instancesResp) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return instancesResp.Instances, nil |
| } |
| |
| func (c *Client) Heartbeat(ctx context.Context, domain, project, serviceID, instanceID string) *errsvc.Error { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| |
| resp, err := c.RestDoWithContext(ctx, http.MethodPut, |
| fmt.Sprintf(apiInstanceHeartbeatURL, project, serviceID, instanceID), |
| headers, nil) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return c.toError(body) |
| } |
| |
| return nil |
| } |
| |
| func (c *Client) HeartbeatSet(ctx context.Context, domain, project string, instances ...*discovery.HeartbeatSetElement) ([]*discovery.InstanceHbRst, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| |
| reqBody, err := json.Marshal(&discovery.HeartbeatSetRequest{Instances: instances}) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| resp, err := c.RestDoWithContext(ctx, http.MethodPut, |
| fmt.Sprintf(apiHeartbeatSetURL, project), |
| headers, reqBody) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| instancesResp := &discovery.HeartbeatSetResponse{} |
| err = json.Unmarshal(body, instancesResp) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return instancesResp.Instances, nil |
| } |
| |
| func (c *Client) GetInstancesByServiceID(ctx context.Context, domain, project, providerID, consumerID string) ([]*discovery.MicroServiceInstance, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| headers.Set("X-ConsumerId", consumerID) |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, |
| fmt.Sprintf(apiInstancesURL, project, providerID)+"?"+c.parseQuery(ctx), |
| headers, nil) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| instancesResp := &discovery.GetInstancesResponse{} |
| err = json.Unmarshal(body, instancesResp) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return instancesResp.Instances, nil |
| } |
| |
| func (c *Client) GetInstanceByInstanceID(ctx context.Context, domain, project, providerID, instanceID, consumerID string) (*discovery.MicroServiceInstance, *errsvc.Error) { |
| headers := c.CommonHeaders(ctx) |
| headers.Set("X-Domain-Name", domain) |
| headers.Set("X-ConsumerId", consumerID) |
| resp, err := c.RestDoWithContext(ctx, http.MethodGet, |
| fmt.Sprintf(apiInstanceURL, project, providerID, instanceID)+"?"+c.parseQuery(ctx), |
| headers, nil) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| defer resp.Body.Close() |
| |
| body, err := io.ReadAll(resp.Body) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| if resp.StatusCode != http.StatusOK { |
| return nil, c.toError(body) |
| } |
| |
| instanceResp := &discovery.GetOneInstanceResponse{} |
| err = json.Unmarshal(body, instanceResp) |
| if err != nil { |
| return nil, discovery.NewError(discovery.ErrInternal, err.Error()) |
| } |
| |
| return instanceResp.Instance, nil |
| } |