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Go (Golang)

Project Information​

Installation​

go get github.com/QuantumDMN/dmn-go-sdk

Usage​

Below is an example of how to initialize the client and evaluate a decision.

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"os"

	"github.com/QuantumDMN/dmn-go-sdk/pkg/quantumdmn"
	"github.com/google/uuid"
)

func main() {
	// Configuration
	apiURL := "https://api.quantumdmn.com"
	authURL := "https://auth.quantumdmn.com"
	keyFile := "path/to/service-user.json"
	projectIDStr := "YOUR_DMN_PROJECT_ID"
	definitionID := "YOUR_DEFINITION_ID"
    // Zitadel project ID for audience scope (different from DMN project ID)
	zitadelProjectID := "YOUR_ZITADEL_PROJECT_ID"
    
	ctx := context.Background()

    // 1. Parse Project ID
	pID, err := uuid.Parse(projectIDStr)
	if err != nil {
		panic(err)
	}

    // 2. Create Token Provider
	tokenProvider, err := quantumdmn.NewZitadelTokenProvider(keyFile, authURL, zitadelProjectID)
	if err != nil {
		panic(err)
	}

    // 3. Create Engine Client
	client, err := quantumdmn.NewEngineClient(apiURL, pID, tokenProvider)
	if err != nil {
		panic(err)
	}

    // 4. Prepare Context
	evalContext := map[string]interface{}{
		"RequestedAmt": 1000,
	}

	fmt.Printf("Evaluating definition %s in project %s...\n", definitionID, projectIDStr)

    // 5. Evaluate
	result, err := client.Evaluate(ctx, definitionID, evalContext)
	if err != nil {
		panic(err)
	}

    // 6. usage of result
	resultJSON, _ := json.MarshalIndent(result, "", "  ")
	fmt.Printf("Result:\n%s\n", resultJSON)
}