Normalize select to STRING type in Gemini OpenAI request outputs

internal/api/handlers/openai/openai_handlers.go

@@ -60,9 +60,33 @@ func (h *OpenAIAPIHandler) Models() []map[string]any {
 // It returns a list of available AI models with their capabilities
 // and specifications in OpenAI-compatible format.
 func (h *OpenAIAPIHandler) OpenAIModels(c *gin.Context) {
+	// Get all available models
+	allModels := h.Models()
+
+	// Filter to only include the 4 required fields: id, object, created, owned_by
+	filteredModels := make([]map[string]any, len(allModels))
+	for i, model := range allModels {
+		filteredModel := map[string]any{
+			"id":     model["id"],
+			"object": model["object"],
+		}
+
+		// Add created field if it exists
+		if created, exists := model["created"]; exists {
+			filteredModel["created"] = created
+		}
+
+		// Add owned_by field if it exists
+		if ownedBy, exists := model["owned_by"]; exists {
+			filteredModel["owned_by"] = ownedBy
+		}
+
+		filteredModels[i] = filteredModel
+	}
+
 	c.JSON(http.StatusOK, gin.H{
 		"object": "list",
-		"data":   h.Models(),
+		"data":   filteredModels,
 	})
 }
 

internal/translator/gemini-cli/openai/chat-completions/cli_openai_request.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/luispater/CLIProxyAPI/internal/misc"
+	"github.com/luispater/CLIProxyAPI/internal/util"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -230,6 +231,16 @@ func ConvertOpenAIRequestToGeminiCLI(modelName string, inputRawJSON []byte, _ bo
 		}
 	}
 
+	var pathsToType []string
+	root := gjson.ParseBytes(out)
+	util.Walk(root, "", "type", &pathsToType)
+	for _, p := range pathsToType {
+		typeResult := gjson.GetBytes(out, p)
+		if strings.ToLower(typeResult.String()) == "select" {
+			out, _ = sjson.SetBytes(out, p, "STRING")
+		}
+	}
+
 	return out
 }
 

internal/translator/gemini/openai/chat-completions/gemini_openai_request.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/luispater/CLIProxyAPI/internal/misc"
+	"github.com/luispater/CLIProxyAPI/internal/util"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -230,6 +231,16 @@ func ConvertOpenAIRequestToGemini(modelName string, inputRawJSON []byte, _ bool)
 		}
 	}
 
+	var pathsToType []string
+	root := gjson.ParseBytes(out)
+	util.Walk(root, "", "type", &pathsToType)
+	for _, p := range pathsToType {
+		typeResult := gjson.GetBytes(out, p)
+		if strings.ToLower(typeResult.String()) == "select" {
+			out, _ = sjson.SetBytes(out, p, "STRING")
+		}
+	}
+
 	return out
 }