Web Application

The web application service serves the webapp via http.

• Template engine:
  • We serve templated html pages via Go's built in template package.
  • Philosophies behind using templates over other javascript frontend frameworks:
    • It allows development to be more backend focused
    • Rendering performance: Templates are often faster as they are rendered on the server-side, reducing the load on the client-side.
    • No Duplication: With templates, you don’t need to duplicate your work on both the server and client side
    • Less Javascript: Templates can reduce the amount of JavaScript required, which can be beneficial for performance and compatibility
    • No advanced interactivity with the site is needed (at this time).
• Web Assembly (WASM):
  • “The client's browser is a free compute resource” - citation needed
  • All of our advanced calculators are written in Go. We compile them to WASM to be served with our webapp templates
  • Philosophies behind using WASM:
    • Reduce Waste and Duplicate Engineering: WASM reduces waste and duplicate engineering by letting us use what we already have. For instance, the calculator REST Api's use the exact same code as the WASM calculators.
    • Efficient Execution: WASM provides efficient execution and compact representation of code on modern processors, including in a web browser. It is designed to be executed at near-native speeds.
    • Potentially save network resources: Once an end user renders a WASM calculator, they can freely use it, and even spam it, as much as they want without impacting or relying on Cultivate Finance's resources.
    • Portability: Once an end user renders a WASM calculator, it can still be used without network connection from either the client or server.

You can build and run the webapp locally by doing the following:

1. Confirm docker is running on your machine
2. Change directory to the build directory

   cd build

3. Use docker-compose to build and run the webapp

   make webapp

4. Navigate to to http://localhost:8662/

You can deploy the webapp to our production kubernetes cluster by:

1. Confirm you are in the build directory:

   cd build

2. You can deploy using EITHER the make command OR kubectl
   1. make command:

      make k_depoy_webapp

   2. kubectl:

      kubectl apply -f k8s/webapp.yml

3. Confirm the webapp service is deployed:

   kubectl get service webapp-service