https://github.com/sashee/appsync-subscriptions

appsync aws graphql terraform

Last synced: 11 months ago
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Example code for AppSync Subscriptions

README

# Example code for AppSync Subscriptions

## Requirements

* terraform
* AWS account
* AWS CLI configured

## Deploy

* ```terraform init```
* ```terraform apply```

## Use

### Basic filtering

Go to the AWS Management Console and subscribe to new Todo items:

```graphql
subscription MySubscription {
newTodo(name: "todo1") {
checked
created
name
id
}
}
```

On a separate tab, create a new Todo:

```graphql
mutation MyMutation {
addTodo(name: "todo1", userId: "user1") {
id
name
created
checked
}
}
```

There is an event on the first tab. Try again with a different name:

```graphql
mutation MyMutation {
addTodo(name: "todo5", userId: "user1") {
id
name
created
checked
}
}
```

No event this time.

### Advanced filtering

Subscribe to the other subscription field:

```graphql
subscription MySubscription {
todo(userId: "user1") {
todo {
checked
created
id
name
}
}
}
```

Create a Todo item:

```graphql
mutation MyMutation {
addTodo(name: "todo5", userId: "user1") {
id
}
}
```

There is an event. Notice that the Mutation has fewer fields than the Subscription.

## Cleanup

* ```terraform destroy```