Here's the complete configuration of the Symfony bundle including default values:

# api/config/packages/api_platform.yaml

    # The title of the API.
    title: 'API title'

    # The description of the API.
    description: 'API description'

    # The version of the API.
    version: '0.0.0'

    # Set this to false if you want Webby to disappear.
    show_webby: true

    # Specify a name converter to use.
    name_converter: ~

    # Specify a path name generator to use.
    path_segment_name_generator: 'api_platform.path_segment_name_generator.underscore'

    # Allow using plain IDs for JSON format
    allow_plain_identifiers: false

        # To enable or disable Doctrine ORM support.
        enabled: true

        # To enable or disable Doctrine MongoDB ODM support.
        enabled: false

        # To enable or disable eager loading.
        enabled: true

        # Fetch only partial data according to serialization groups.
        # If enabled, Doctrine ORM entities will not work as expected if any of the other fields are used.
        fetch_partial: false

        # Max number of joined relations before EagerLoading throws a RuntimeException.
        max_joins: 30

        # Force join on every relation.
        # If disabled, it will only join relations having the EAGER fetch mode.
        force_eager: true

    # Enable the FOSUserBundle integration.
    enable_fos_user: false

    # Enable the Nelmio Api doc integration.
    enable_nelmio_api_doc: false

    # Enable the Swagger documentation and export.
    enable_swagger: true

    # Enable Swagger ui.
    enable_swagger_ui: true

    # Enable ReDoc.
    enable_re_doc: true

    # Enable the entrypoint.
    enable_entrypoint: true

    # Enable the docs.
    enable_docs: true
    # Enable the data collector and the WebProfilerBundle integration.
    enable_profiler: true
        # To enable or disable oauth.
        enabled: false

        # The oauth client id.
        clientId: ''

        # The oauth client secret.
        clientSecret: ''

        # The oauth type.
        type: 'oauth2'

        # The oauth flow grant type.
        flow: 'application'

        # The oauth token url.
        tokenUrl: '/oauth/v2/token'

        # The oauth authentication url.
        authorizationUrl: '/oauth/v2/auth'

        # The oauth scopes.
        scopes: []

        enabled: false
        # The default IDE (graphiql or graphql-playground) used when going to the GraphQL endpoint. False to disable.
        default_ide: 'graphiql'
            enabled: true
            enabled: true
                enabled: true
        # The nesting separator used in the filter names.
        nesting_separator: _

        # To enable or disable Elasticsearch support.
        enabled: false

        # The hosts to the Elasticsearch nodes.
        hosts: []

        # The mapping between resource classes and indexes.
        mapping: []

        # The active versions of OpenAPI to be exported or used in the swagger_ui. The first value is the default.
        versions: [2, 3]
        # The swagger api keys.
        api_keys: []

        # The name of the query parameter to filter nullable results (with the ExistsFilter).
        exists_parameter_name: 'exists'

        # The default order of results.
        order: 'ASC'

        # The name of the query parameter to order results (with the OrderFilter).
        order_parameter_name: 'order'

            # To enable or disable pagination for all resource collections by default.
            enabled: true

            # To allow the client to enable or disable the pagination.
            client_enabled: false

            # To allow the client to set the number of items per page.
            client_items_per_page: false

            # The default number of items per page.
            items_per_page: 30

            # The maximum number of items per page.
            maximum_items_per_page: 10

            # The default name of the parameter handling the page number.
            page_parameter_name: 'page'

            # The name of the query parameter to enable or disable pagination.
            enabled_parameter_name: 'pagination'

            # The name of the query parameter to set the number of items per page.
            items_per_page_parameter_name: 'itemsPerPage'

            # To allow partial pagination for all resource collections.
            # This improves performances by skipping the `COUNT` query.
            partial: false

            # To allow the client to enable or disable the partial pagination.
            client_partial: false

            # The name of the query parameter to enable or disable the partial pagination.
            partial_parameter_name: 'partial' # Default value

        # The list of paths with files or directories where the bundle will look for additional resource files.
        paths: []

    # The list of your resources class directories. Defaults to the directories of the mapping paths but might differ.
        - '%kernel.project_dir%/src/Entity'

        # Automatically generate etags for API responses.
        etag: true

        # Default value for the response max age.
        max_age: 3600

        # Default value for the response shared (proxy) max age.
        shared_max_age: 3600

        # Default values of the "Vary" HTTP header.
        vary: ['Accept']

        # To make all responses public by default.
        public: ~

          # To enable the tags-based cache invalidation system.
          enabled: false

          # URLs of the Varnish servers to purge using cache tags when a resource is updated.
          varnish_urls: []

          # To pass options to the client charged with the request.
          request_options: []

    # The list of exceptions mapped to their HTTP status code.
        # With a status code.
        Symfony\Component\Serializer\Exception\ExceptionInterface: 400

        # Or with a constant defined in the 'Symfony\Component\HttpFoundation\Response' class.
        ApiPlatform\Core\Exception\InvalidArgumentException: !php/const Symfony\Component\HttpFoundation\Response::HTTP_BAD_REQUEST

        # ...

    # The list of enabled formats. The first one will be the default.
            mime_types: ['application/ld+json']

            mime_types: ['application/json']

            mime_types: ['text/html']

        # ...

    # The list of enabled error formats. The first one will be the default.
            mime_types: ['application/problem+json']

            mime_types: ['application/ld+json']

        # ...