Comments (2)
Well, I'd be happy to hear any additional advice (especially how I may improve this), but I did make some progress. Using my generated models, I was able to dig a bit into the code and figure out how to send random queries and map that to my models. Here's the result, maybe it will help someone!
Query Function:
Future<Customer?> getCustomer() async {
try {
const document = '''
query GetCustomer(\$customerId: ID!) {
getCustomer(customerId: \$customerId) {
id
email
status
}
}
''';
const variables = {"customerId": "abcdefg"};
final call = await Amplify.API
.query(
request: GraphQLRequest<dynamic>(
document: document,
variables: variables,
))
.response;
final responseRaw = call.data;
print(responseRaw);
final customerDynamic = jsonDecode(responseRaw)['getCustomer'];
print(customerDynamic);
final customer = Customer.fromJson(customerDynamic);
return customer;
} on ApiException catch (e) {
safePrint('Query failed: $e');
return null;
}
}
Result (in console):
{"getCustomer":{"id":"abcdefg,"email":"[email protected]","status":"ACTIVE"}}
{id: abcdefg, email: [email protected], status: ACTIVE}
Customer {id=abcdefg, [email protected], status=ACTIVE, createdAt=null, updatedAt=null, queryResultsCustomerResultsId=null}
Next up.. figure out how to do subscriptions π
from amplify-flutter.
Subscriptions!
StreamSubscription<GraphQLResponse<String>>? subscription;
void subscribe() {
const document = '''
subscription SubscribeToRealtimeEvent(\$channel: String!) {
subscribeToRealtimeEvent(channel: \$channel) {
channel
data
date
}
}
''';
const variables = {"channel": "123456"};
final subscriptionRequest = GraphQLRequest<String>(document: document, variables: variables);
final Stream<GraphQLResponse<String>> operation = Amplify.API.subscribe(
subscriptionRequest,
onEstablished: () => safePrint('Subscription established'),
);
subscription = operation.listen(
(event) {
safePrint('Subscription event data received: ${event.data}');
},
onError: (Object e) => safePrint('Error in subscription stream: $e'),
);
}
Output:
Subscription event data received:
{"subscribeToRealtimeEvent":{"channel":"123456","data":"{\"action\":\"ACT_ON_RESPONSE_RECEIVED\",\"params\":{\"itemId\":\"000000001\"}}","date":"2024-03-21T18:45:30.343Z"}}
I tried mapping these to the RealtimeEvent
model, but I got this error message so I just moved it to String
, easy enough to handle:
Error: ApiOperationException {
"message": "Decoding of the response type provided is currently unsupported",
"recoverySuggestion": "Please provide a Model Type or type 'String'"
}
from amplify-flutter.
Related Issues (20)
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from amplify-flutter.