fix(go): Debug logs change from fmt.Sprintf("%#v",d) to serialized JSON in []byte (#3717)

Author: peterkarabinovic

go/ai/generate.go

@@ -115,11 +115,13 @@ type ModelOptions struct {
 func DefineGenerateAction(ctx context.Context, r api.Registry) *generateAction {
 	return (*generateAction)(core.DefineStreamingAction(r, "generate", api.ActionTypeUtil, nil, nil,
 		func(ctx context.Context, actionOpts *GenerateActionOptions, cb ModelStreamCallback) (resp *ModelResponse, err error) {
+			actionOptsBytes, _ := json.Marshal(actionOpts)
 			logger.FromContext(ctx).Debug("GenerateAction",
-				"input", fmt.Sprintf("%#v", actionOpts))
+				"input", actionOptsBytes)
 			defer func() {
+				respBytes, _ := json.Marshal(resp)
 				logger.FromContext(ctx).Debug("GenerateAction",
-					"output", fmt.Sprintf("%#v", resp),
+					"output", respBytes,
 					"err", err)
 			}()
 

go/core/action.go

@@ -183,13 +183,15 @@ func (a *ActionDef[In, Out, Stream]) Run(ctx context.Context, input In, cb Strea
 
 // Run executes the Action's function in a new trace span.
 func (a *ActionDef[In, Out, Stream]) runWithTelemetry(ctx context.Context, input In, cb StreamCallback[Stream]) (output api.ActionRunResult[Out], err error) {
+	inputBytes, _ := json.Marshal(input)
 	logger.FromContext(ctx).Debug("Action.Run",
 		"name", a.Name(),
-		"input", fmt.Sprintf("%#v", input))
+		"input", inputBytes)
 	defer func() {
+		outputBytes, _ := json.Marshal(output)
 		logger.FromContext(ctx).Debug("Action.Run",
 			"name", a.Name(),
-			"output", fmt.Sprintf("%#v", output),
+			"output", outputBytes,
 			"err", err)
 	}()