Function getDefaultValues

packages/apollo-utilities/src/getFromAST.ts:190–217

(
  definition: OperationDefinitionNode | undefined,
)

}

export function getDefaultValues(
  definition: OperationDefinitionNode | undefined,
): { [key: string]: JsonValue } {
  if (
    definition &&
    definition.variableDefinitions &&
    definition.variableDefinitions.length
  ) {
    const defaultValues = definition.variableDefinitions
      .filter(({ defaultValue }) => defaultValue)
      .map(
        ({ variable, defaultValue }): { [key: string]: JsonValue } => {
          const defaultValueObj: { [key: string]: JsonValue } = {};
          valueToObjectRepresentation(
            defaultValueObj,
            variable.name,
            defaultValue as ValueNode,
          );

          return defaultValueObj;
        },
      );

    return assign({}, ...defaultValues);
  }

  return {};
}

/**
 * Returns the names of all variables declared by the operation.