01-hello-world

Hello World Example

Tags: Models

Description

Simple service serving a message to the world.

Prerequisite

• Download and install Go
• Install NATS Server and Resgate (done with 3 docker commands).

Install and run

git clone https://github.com/jirenius/go-res
cd go-res/examples/01-hello-world
go run .

Things to try out

Access API through HTTP

• Open the browser and go to:

  http://localhost:8080/api/example/model
  

Access API through WebSocket

• Open Chrome and go to resgate.io - resource viewer.
• Type in the resource ID below, and click View:

  example.model
  

  Note

  Chrome allows websites to connect to localhost, while other browsers may give a security error.

Real time update on static resource

• Stop the project, and change the "Hello, World!" message in main.go.
• Restart the project and observe how the message is updated in the viewer (see above).

Get resource with ResClient

• In the resgate.io - resource viewer, open the DevTools console (Ctrl+Shift+J).
• Type the following command, and press Enter:

  client.get("example.model").then(m => console.log(m.message));

  Note

  The resource viewer app stores the ResClient instance in the global client variable, for easy access.