Method fetchMetadata

backend/api/mcp/tool_schema.go:384–413

fetchMetadata calls DatabaseService/GetDatabaseMetadata and decodes the response.

(ctx context.Context, resourceName, filter string, limit int32)

// fetchMetadata calls DatabaseService/GetDatabaseMetadata and decodes the response.
func (s *Server) fetchMetadata(ctx context.Context, resourceName, filter string, limit int32) (*databaseMetadata, error) {
	body := map[string]any{
		"name": resourceName + "/metadata",
	}
	if filter != "" {
		body["filter"] = filter
	}
	if limit > 0 {
		body["limit"] = limit
	}

	resp, err := s.apiRequest(ctx, "/bytebase.v1.DatabaseService/GetDatabaseMetadata", body)
	if err != nil {
		return nil, &toolError{
			Code:       "SCHEMA_FETCH_ERROR",
			Message:    fmt.Sprintf("metadata request failed: %s", err.Error()),
			Suggestion: "check network connectivity and try again",
		}
	}

	if resp.Status >= 400 {
		return nil, translateMetadataError(resp)
	}

	var metadata databaseMetadata
	if err := json.Unmarshal(resp.Body, &metadata); err != nil {
		return nil, errors.Wrap(err, "failed to parse database metadata")
	}
	return &metadata, nil
}

// translateMetadataError maps GetDatabaseMetadata HTTP errors into toolError codes.
func translateMetadataError(resp *apiResponse) error {