instructure/canvas-lms · error · GraphQL::ExecutionError

filter must be one of: #

Error message

filter must be one of: #{VALID_TODO_FILTERS.join(", ")}

What it means

The todo list widget's filter hash, if it contains a "filter" key, must be a String in VALID_TODO_FILTERS ("incomplete_items", "complete_items", "all"). validate_todo_list_filters! raises this GraphQL::ExecutionError for any other value or non-string type.

Solutions

  1. Use exactly one of "incomplete_items", "complete_items", or "all"
  2. Check VALID_TODO_FILTERS in app/graphql/mutations/update_widget_dashboard_config.rb for the canonical values
  3. Map client-side state to the allowed enum before sending

Example fix

// before
filters: { "filter": "incomplete" }
// after
filters: { "filter": "incomplete_items" }
Defensive patterns

Strategy: validation

Validate before calling

const VALID = ["incomplete_items", "complete_items", "all"];
if (filters.filter !== undefined && !(typeof filters.filter === "string" && VALID.includes(filters.filter))) {
  throw new Error(`filter must be one of: ${VALID.join(", ")}`);
}

Type guard

const isTodoFilter = (v) => typeof v === "string" && ["incomplete_items","complete_items","all"].includes(v);

Prevention

When it happens

Trigger: Sending the UpdateWidgetDashboardConfig mutation for the todo list widget with filters["filter"] set to e.g. "incomplete", "todo", "open_items", 0, or null.

Common situations: Front-end sending shortened or renamed variants of the allowed values; case sensitivity issues ("Incomplete_Items"); stale client code from before the filter vocabulary was defined.

Understand the failure class

Background: Invalid enum value errors: "Unknown type", "Invalid scope", "must be one of" — when a string is not on the library's allowed list — this error's family across 23 libraries.

Related errors


AI-assisted analysis of instructure/canvas-lms@1c9f0bb801 (2026-09-15). Data as JSON: /api/errors/b280a3b6970a38bb. Report an issue: GitHub.

Appendix: source

Thrown at app/graphql/mutations/update_widget_dashboard_config.rb:116

  def validate_announcements_filters!(filters)
    if filters.key?("filter")
      filter_value = filters["filter"]
      unless filter_value.is_a?(String) && VALID_ANNOUNCEMENT_FILTERS.include?(filter_value)
        raise GraphQL::ExecutionError, "filter must be one of: #{VALID_ANNOUNCEMENT_FILTERS.join(", ")}"
      end
    end

    invalid_keys = filters.keys - ["filter"]
    unless invalid_keys.empty?
      raise GraphQL::ExecutionError, "invalid filter keys for announcements widget: #{invalid_keys.join(", ")}"
    end
  end

  def validate_todo_list_filters!(filters)
    if filters.key?("filter")
      filter_value = filters["filter"]
      unless filter_value.is_a?(String) && VALID_TODO_FILTERS.include?(filter_value)
        raise GraphQL::ExecutionError, "filter must be one of: #{VALID_TODO_FILTERS.join(", ")}"
      end
    end

    invalid_keys = filters.keys - ["filter"]
    unless invalid_keys.empty?
      raise GraphQL::ExecutionError, "invalid filter keys for todo list widget: #{invalid_keys.join(", ")}"
    end
  end

  def validate_course_work_filters!(filters)
    if filters.key?("selectedCourse")
      course_value = filters["selectedCourse"]
      unless course_value.is_a?(String) && (course_value == "all" || course_value.match?(/^course_\d+$/))
        raise GraphQL::ExecutionError, "selectedCourse must be 'all' or 'course_{id}'"
      end
    end

    if filters.key?("selectedDateFilter")

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