netifi-r2dbc-example

An example of accessing a database using R2DBC in a Netifi RSocket application.

What is Netifi?

Netifi is a platform for building cloud-native applications with the power of RSocket.

Netifi provides service discovery, load-balancing, streaming, and back-pressure without deploying a whole host of infrastructure components and without polluting your code with circuit breakers and client-side load-balancing.

Check out www.netifi.com for more information.

Project Structure

This example contains the following projects / directories:

• client - Client application that calls the product-service to retrieve product information.
• product-service-idl - Defines the API contract exposed by the product-service.
• product-service - Service that retrieves product information from the database.
• docker - Docker Compose configuration for running the example.

Building the Example

Run the following command to build the example:

./gradlew clean buildImage

Running the Example

Follow the steps below to run the example application:

1. Run the following commands to start a Netifi Broker, the product service and its database:

    cd docker
    docker-compose up
   

2. In a new terminal, run the following command to start a client instance and retrieve product information for product 3:

    docker run -e SPRING_PROFILES_ACTIVE='localdocker' netifi-r2dbc-example/client 3
   

   If successful, you will see the following in the console:

    productId: 3
    shortName: "bwauemjynyssyovuggqyc"
    longName: "tsmgdvspbsitghphqacpzormjgeqrchepuusnuirbl"
    description: "xvwgacykdzjahkatkhobqpspvdafsnuiuiffdxblkixbkuxpgeujjviyncjmoccdyxnqkwbhqjqmtbyglqzgxciukuyowryvyruxgxgmbpyafcscxulexkmdwilpwf"
    active: true
    skus {
      sku: "737-674"
      size: "S"
      colorway: "Red"
      prices {
        list: 14.67
        msrp: 62.61
        sale: 65.96
      }
    }
    skus {
      sku: "302-014"
      active: true
      size: "L"
      colorway: "Blue"
      prices {
        list: 69.05
        msrp: 78.24
        sale: 34.65
      }
    }
   

Bugs and Feedback

For bugs, questions, and discussions please use the Github Issues.

License

Copyright 2019 Greg Whitaker

Licensed 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.