Add uploader configuration and default value in Config

- Introduced Uploader field in the Config struct to allow optional file uploader configuration.
- Implemented logic to set a default uploader value if not explicitly configured during JSON unmarshalling.

kb/types/config.go

@@ -307,9 +307,13 @@ func (c *Config) UnmarshalJSON(data []byte) error {
 		return err
 	}
 
+	// Set default uploader if not configured
+	if c.Uploader == "" {
+		c.Uploader = "__yao.attachment"
+	}
+
 	// Compute features after parsing and resolving env vars
 	c.Features = c.ComputeFeatures()
-
 	return nil
 }
 

kb/types/types.go

@@ -69,6 +69,9 @@ type Config struct {
 	// FFmpeg configuration (Optional)
 	FFmpeg *FFmpegConfig `json:"ffmpeg,omitempty" yaml:"ffmpeg"`
 
+	// File uploader configuration (Optional)
+	Uploader string `json:"uploader,omitempty" yaml:"uploader"` // Default: "__yao.attachment"
+
 	// Concurrency limits for task processing (Optional)
 	Limits *LimitsConfig `json:"limits,omitempty" yaml:"limits"`
 

widgets/app/app.go

@@ -620,8 +620,69 @@ func processXgen(process *process.Process) interface{} {
 				}
 			}
 
-			// other providers
+			extractors := []string{}
-			kbConfig = map[string]interface{}{"features": knowledgebase.Config.Features, "chunkings": chunkings, "embeddings": embeddings, "converters": converters}
+			if knowledgebase.Config.Extractors != nil {
+				for _, extractor := range knowledgebase.Config.Extractors {
+					extractors = append(extractors, extractor.ID)
+				}
+			}
+
+			fetchers := []string{}
+			if knowledgebase.Config.Fetchers != nil {
+				for _, fetcher := range knowledgebase.Config.Fetchers {
+					fetchers = append(fetchers, fetcher.ID)
+				}
+			}
+
+			searchers := []string{}
+			if knowledgebase.Config.Searchers != nil {
+				for _, searcher := range knowledgebase.Config.Searchers {
+					searchers = append(searchers, searcher.ID)
+				}
+			}
+
+			rerankers := []string{}
+			if knowledgebase.Config.Rerankers != nil {
+				for _, reranker := range knowledgebase.Config.Rerankers {
+					rerankers = append(rerankers, reranker.ID)
+				}
+			}
+
+			votes := []string{}
+			if knowledgebase.Config.Votes != nil {
+				for _, vote := range knowledgebase.Config.Votes {
+					votes = append(votes, vote.ID)
+				}
+			}
+
+			weights := []string{}
+			if knowledgebase.Config.Weights != nil {
+				for _, weight := range knowledgebase.Config.Weights {
+					weights = append(weights, weight.ID)
+				}
+			}
+
+			scores := []string{}
+			if knowledgebase.Config.Scores != nil {
+				for _, score := range knowledgebase.Config.Scores {
+					scores = append(scores, score.ID)
+				}
+			}
+
+			kbConfig = map[string]interface{}{
+				"features":   knowledgebase.Config.Features,
+				"chunkings":  chunkings,
+				"embeddings": embeddings,
+				"converters": converters,
+				"extractors": extractors,
+				"fetchers":   fetchers,
+				"searchers":  searchers,
+				"rerankers":  rerankers,
+				"votes":      votes,
+				"weights":    weights,
+				"scores":     scores,
+				"uploader":   knowledgebase.Config.Uploader, // Default: "__yao.attachment"
+			}
 		}
 	}