example-apps

介绍

Example applications based on EdgeGallery

软件架构

软件架构说明

安装教程

1. xxxx
2. xxxx
3. xxxx

使用说明

1. xxxx
2. xxxx
3. xxxx

参与贡献

1. Fork 本仓库
2. 新建 Feat_xxx 分支
3. 提交代码
4. 新建 Pull Request

特技

1. 使用 Readme_XXX.md 来支持不同的语言，例如 Readme_en.md, Readme_zh.md
2. Gitee 官方博客 blog.gitee.com
3. 你可以 https://gitee.com/explore 这个地址来了解 Gitee 上的优秀开源项目
4. GVP 全称是 Gitee 最有价值开源项目，是综合评定出的优秀开源项目
5. Gitee 官方提供的使用手册 https://gitee.com/help
6. Gitee 封面人物是一档用来展示 Gitee 会员风采的栏目 https://gitee.com/gitee-stars/

How to develop an example application

1.Consumer application can easily integrate with MEP/MEP-AGENT to obtain producer application services

2.Every consumer application should be writing 2 to 3 lines of code to acheive this functionality

3.Mep-agent should expose an API’s to get token and service endpoint

4.Consumer application uses consumer client to perform CRUD operations.

5.Example consumer application can leverage mep-agent and consumerclient to communicate with mep-service via kong

6. ClientFactory code is implemented to send request to mep-agent to get service endpoint and based on endpoint information will create a client object def get_service_endpoint(service): url = restclient.mep_agent_url + "/mep-agent/v1/endpoint/{0}".format(service) headers = {'Content-Type': "application/json"} if restclient.ssl_enabled: url = restclient.httpsUrl + url response = requests.get(url, headers=headers, verify=restclient.ssl_cacertpath) else: url = restclient.httpUrl + url response = requests.get(url, headers=headers)

   extracting data in json format

   if response: data = response.json() url = data["uris"] return url[0] else: return "" class ClientFactory:

   constructor

   def init(self, list_of_services): self.update_client_object(list_of_services) def update_client_object(self, list_of_services): for service in list_of_services: endpoint = get_service_endpoint(service) if endpoint != "" and "http" in endpoint or "https" in endpoint: clientObjects[service] = restclient.RestClient(endpoint) def get_client_by_service_name(self, service): return clientObjects[service]

7.Consumerclient code is implemented to get access token and send request to mep service via kong def get_access_token(): url = mep_agent_url + "/mep-agent/v1/token" headers = {'Content-Type': contentType} if ssl_enabled: url = httpsUrl + url response = requests.get(url, headers=headers, verify=ssl_cacertpath) else: url = httpUrl + url response = requests.get(url, headers=headers) # extracting data in json format data = response.json() access_token = data["access_token"] return access_token class RestClient: # rest client constructor def init(self, endpoint): self.endpoint = endpoint def post(self, url, body=None, upload_files=None): access_token = get_access_token() access_token = "Bearer " + access_token headers = {'Authorization': access_token} response = requests.post(url, data=body, files=upload_files, headers=headers, verify=False) return response def delete(self, url): access_token = get_access_token() access_token = "Bearer " + access_token headers = {'Authorization': access_token} response = requests.delete(url, headers=headers, verify=False) return response def get_endpoint(self): return self.endpoint

8.Application code is implemented to send request to consumer client for communicating with mep service via kong api gateway rest_client = clientFactory.get_client_by_service_name(constants.face_recognition_service) url = rest_client.get_endpoint() + "/v1/face-recognition/recognition" response = rest_client.post(url, body)