eta_chart_lib/plugin/basic/main.go

package main

import (
	"eta/eta_chart_lib/plugin/basic/shared"
	"github.com/hashicorp/go-hclog"
	"github.com/hashicorp/go-plugin"
	"log"
	"os"
	"os/exec"
)

// handshakeConfigs are used to just do a basic handshake between
// a plugin and host. If the handshake fails, a user friendly error is shown.
// This prevents users from executing bad plugins or executing a plugin
// directory. It is a UX feature, not a security feature.
var handshakeConfig = plugin.HandshakeConfig{
	ProtocolVersion:  1,
	MagicCookieKey:   "BASIC_PLUGIN",
	MagicCookieValue: "xxyBASIC_PLUGIN",
}

// pluginMap is the map of plugins we can dispense.
var pluginMap = map[string]plugin.Plugin{
	"ChartServiceGetData": &shared.ChartPlugin{},
}

func main() {
	// Create an hclog.Logger
	logger := hclog.New(&hclog.LoggerOptions{
		Name:   "plugin",
		Output: os.Stdout,
		Level:  hclog.Debug,
	})
	// We're a host! Start by launching the plugin process.
	client := plugin.NewClient(&plugin.ClientConfig{
		HandshakeConfig: handshakeConfig,
		Plugins:         pluginMap,
		Cmd:             exec.Command("./plugin/chart"),
		Logger:          logger,
	})
	defer client.Kill()

	// Connect via RPC
	rpcClient, err := client.Client()
	if err != nil {
		log.Fatal(err)
	}

	raw, err := rpcClient.Dispense("ChartServiceGetData")
	if err != nil {
		log.Fatal(err)
	}

	chartData := raw.(shared.ChartInterface)
	resp := chartData.GetChartData(1)
	log.Println("Success resp1: ", resp)

	resp2, err := chartData.GetChartThemeConfig(1, 1, 1)
	if err != nil {
		log.Println("Failed resp2: ", err.Error())
		log.Fatal(err)
	}
	log.Println("Success resp2: ", resp2.ChartThemeName)
}