go-dev Integration

The workflowdev package integrates go-workflow with go-dev, a Go development runner with file watching and live reload.

import "github.com/eriicafes/go-workflow/workflowdev"

Web

workflowdev.Web(baseURL) returns a go-dev command that runs the Workflow SDK web UI through npx, connected to the World served by HTTP(world) at baseURL.

workflowdev.Web("http://localhost:8080/v1/workflow")

The web UI needs the Workflow SDK CLI and the go-workflow World adapter, installed where the command runs: the parent command's Dir, or the directory go-dev runs from when Dir is empty:

npm install --save-dev workflow go-workflow

Check

workflowdev.Check returns a go-dev hook that runs the analyzer before every start or reload. Package patterns are relative to dev.Cmd.Dir, and default to ./....

dev.Cmd{
	Run:     dev.Package("./cmd/app"),
	Prepare: dev.Hooks(workflowdev.Check("./...")),
}

Full example

This runs an application on :8080 that opens the World, runs the worker, and mounts HTTP(world) under /v1/workflow/, along with the web UI connected to it. It checks runners and reloads on changes to cmd and workflows:

package main

import (
	"github.com/eriicafes/go-dev"
	"github.com/eriicafes/go-workflow/workflowdev"
)

func main() {
	session := dev.New()
	err := session.Run(dev.Cmd{
		Run:        dev.Package("./cmd/app"),
		Prepare:    dev.Hooks(workflowdev.Check("./...")),
		Watch:      dev.Values("cmd", "workflows"),
		ServerAddr: ":8080",
		Commands: dev.Commands(
			workflowdev.Web("http://localhost:8080/v1/workflow"),
		),
	})
	session.Catch(err)
	session.Catch(session.Wait())
}

Development shows the application side.