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104 lines
3.7 KiB
ReStructuredText
104 lines
3.7 KiB
ReStructuredText
.. meta::
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:description: Manage allow list with Hasura GraphQL engine
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:keywords: hasura, docs, deployment, allow list
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.. _allow_list:
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Allow-list of operations
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========================
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.. contents:: Table of contents
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:backlinks: none
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:depth: 1
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:local:
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Introduction
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------------
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The **Allow-list** is a list of safe operations (*GraphQL queries, mutations or subscriptions*) that is stored by
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the GraphQL engine in its metadata. When enabled, it can be used to restrict the GraphQL engine so that it
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executes **only** those operations that are present in the list *(available after version v1.0.0-beta.1)*.
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Adding or removing a operation in allow-list
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--------------------------------------------
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You can add or remove a operation in the allow-list in two ways:
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* **Using the console:** Head to the ``Settings`` (⚙) --> ``Allow list`` section in the console. You can
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add a new operation to the allow-list or upload a list of new operations from a file that will be added to the
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allow-list. You can also see a list of existing operations in the allow-list and delete them individually.
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* You can add an individual operation, like the one below, manually to the allow-list with a unique name.
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.. code-block:: graphql
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query ($id: Int!){
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user_by_pk(id: $id){
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__typename
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id
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name
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company
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}
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}
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* You can upload files, like this `sample file <https://gist.github.com/dsandip/8b1b4aa87708289d4c9f8fd9621eb025>`_,
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to add multiple operations to the allow-list (each operation needs to have a name).
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* **Using metadata APIs:** Queries can be stored in collections and a collection can be added to or removed
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from the allow-list. See :ref:`Collections & Allow-list APIs <api_query_collections>`
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for API reference.
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.. note::
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* ``__typename`` introspection fields will be ignored when adding operations and comparing them to the allow-list.
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* Any introspection queries that your client apps require will have to be explicitly added to the allow-list
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to allow running them.
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* The order of fields in a query will be **strictly** compared. E.g. assuming the query in the first example
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above is part of the allow-list, the following query will be **rejected**:
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.. code-block:: graphql
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query ($id: Int!){
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user_by_pk(id: $id){
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__typename
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name
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id
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company
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}
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}
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* The allow-list is stored in the metadata. To version control the state of the list, you are required to export
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the metadata. See :ref:`Managing Hasura metadata <manage_hasura_metadata>` for more details.
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* You can modify the allow-list without actually enabling it on your instance.
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Enable allow-list
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-----------------
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The allow-list validation can be enabled by setting the ``HASURA_GRAPHQL_ENABLE_ALLOWLIST`` environment
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variable to ``true`` or running the GraphQL engine with the ``--enable-allowlist`` flag (*default value is*
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``false``). See :ref:`reference docs <command-flags>`.
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.. note::
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The allow-list validation will not be enforced for the ``admin`` role.
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Recommended usage
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-----------------
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The following are the recommended best practices for enabling/disabling allow-list based validation:
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* **In development instances**: During development or in dev instances, disable allow-list (*default setting*)
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to allow complete access to the GraphQL schema. Add/remove operations in the allow-list and then export the
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metadata for version-control (*so you can apply it to other instances*).
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* **In CI/CD instances**: Enable the allow-list for testing.
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* **In production instances**: Enabling the allow-list is highly recommended when running the GraphQL engine in production.
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