fix(enrich)!: enrich processor not working (#390)

* fix(enrich): enrich processor not working

* test(plugin): add test for nil config)

Author: StewartJingga

plugins/base_plugin.go

@@ -25,6 +25,10 @@ func (p *BasePlugin) Info() Info {
 
 // Validate checks if the given options is valid for the plugin.
 func (p *BasePlugin) Validate(config Config) error {
+	if p.configRef == nil {
+		return nil
+	}
+
 	return buildConfig(config.RawConfig, p.configRef)
 }
 

plugins/base_plugin_test.go

@@ -37,6 +37,16 @@ func TestBasePluginInfo(t *testing.T) {
 }
 
 func TestBasePluginValidate(t *testing.T) {
+	t.Run("should not return error if config is nil", func(t *testing.T) {
+		basePlugin := plugins.NewBasePlugin(plugins.Info{}, nil)
+		err := basePlugin.Validate(plugins.Config{
+			URNScope:  "test-scope",
+			RawConfig: map[string]interface{}{},
+		})
+
+		assert.NoError(t, err)
+	})
+
 	t.Run("should return InvalidConfigError if config is invalid", func(t *testing.T) {
 		invalidConfig := struct {
 			FieldA string `validate:"required"`

plugins/processors/enrich/processor.go

@@ -14,17 +14,22 @@ import (
 //go:embed README.md
 var summary string
 
+type Config struct {
+	Attributes map[string]interface{} `mapstructure:"attributes" validate:"required"`
+}
+
 // Processor work in a list of data
 type Processor struct {
 	plugins.BasePlugin
-	config map[string]interface{}
+	config Config
 	logger log.Logger
 }
 
 var sampleConfig = `
  # Enrichment configuration
- # fieldA: valueA
- # fieldB: valueB`
+ # attributes:
+ #	fieldA: valueA
+ # 	fieldB: valueB`
 
 var info = plugins.Info{
 	Description:  "Append custom fields to records",
@@ -68,7 +73,7 @@ func (p *Processor) process(record models.Record) (models.Metadata, error) {
 	customProps := utils.GetCustomProperties(data)
 
 	// update custom properties using value from config
-	for key, value := range p.config {
+	for key, value := range p.config.Attributes {
 		stringVal, ok := value.(string)
 		if ok {
 			customProps[key] = stringVal