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ash_graphql
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The extension for building GraphQL APIs with Ash
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Files
documentation/topics/use-subscriptions-with-graphql.md
# Using Subscriptions
The AshGraphql DSL does not currently support subscriptions. However, you can do this with Absinthe direclty, and use `AshGraphql.Subscription.query_for_subscription/3`. Here is an example of how you could do this for a subscription for a single record. This example could be extended to support lists of records as well.
```elixir
# in your absinthe schema file
subscription do
field :field, :type_name do
config(fn
_args, %{context: %{current_user: %{id: user_id}}} ->
{:ok, topic: user_id, context_id: "user/#{user_id}"}
_args, _context ->
{:error, :unauthorized}
end)
resolve(fn args, _, resolution ->
# loads all the data you need
AshGraphql.Subscription.query_for_subscription(
YourResource,
YourDomain,
resolution
)
|> Ash.Query.filter(id == ^args.id)
|> Ash.read(actor: resolution.context.current_user)
end)
end
end
```