Migrate from REST to gRPC

[Under construction]

• Repositories

  • REST : https://github.com/ccapeng/bookstore_api

  • gRPC : https://github.com/ccapeng/bookstore_grpc

• Create protobuf

  • [django-grpc-framework] (https://djangogrpcframework.readthedocs.io/en/latest/protos.html#generate-proto-for-model) document.

• Backend differences

  • REST :

    • djangorestframework

      • Implementation of

      book.apis.py

      book.serializers.py

    • Middleware cors : bypass the cross site origin.

    • Handle snake-case and camel-case inconsistency.

  • grpc :

    • djangorestframework + djangogrpcframework + grpcio + grpcio-tools

    • Implementation of

      book.schema.py

• Frontend differences The difference is only the database query service.

  • REST : Use URL end point. category.js

      const CategoryService = {
          list: () => {
              let url = "api/category/";
              return Request.get(url);
          }
      }

    request.js

      const Request = {
    
          get: async (url) => {
    
              try {
                  let result = await axios.get(
                      getFullURL(url),
                      getHeaderConfig()
                  );
                  return Promise.resolve(result.data);
              } catch (error) {
                  console.log(error);
                  return Promise.reject("get error");
              }
    
          }
      }

  • grpc : Always use POST method to submit query. category.js

      const CategoryService = {
    
      }

    request.js

    ```javascript const Request = {

      get: async (query) => {

      }
  }
```