Elim•3w ago

@convex/expo-push-notifications sending notification to all registered tokens

Hi, in my app I want to send notification to all users that have registered for push notifications. I noticed that there is a table 'pushTokens' table under pushNotifications component in the dashboard. I want to query this table from my mutation instead of querying all 'users', but I cant find any documentation for this. Also, is it safe to call pushNotifications.sendPushNotification() like this for every registered token?

await Promise.all(
      registeredTokens.map(async ({ userId }) => {
        await pushNotifications.sendPushNotification(ctx, {
          userId,
          notification: {
            title: 'New post!',
            body: 'Check out what's happening!',
          },
        });
      })
    );

await Promise.all(
      registeredTokens.map(async ({ userId }) => {
        await pushNotifications.sendPushNotification(ctx, {
          userId,
          notification: {
            title: 'New post!',
            body: 'Check out what's happening!',
          },
        });
      })
    );

Does this component mind expo's send request and other limits? Documentation on this is very poor...

2 Replies

Convex Bot•3w ago

Thanks for posting in <#1088161997662724167>. Reminder: If you have a Convex Pro account, use the Convex Dashboard to file support tickets. - Provide context: What are you trying to achieve, what is the end-user interaction, what are you seeing? (full error message, command output, etc.) - Use search.convex.dev to search Docs, Stack, and Discord all at once. - Additionally, you can post your questions in the Convex Community's <#1228095053885476985> channel to receive a response from AI. - Avoid tagging staff unless specifically instructed. Thank you!

erquhart•3w ago

As far as querying the pushTokens table instead of all users, the component uses an index, so it's scanning and reading either 0 or 1 documents. Bypassing and reading the table directly won't improve this. Judging by the source, the 600 notification per second limit is not accounted for, so for now you'll want to handle limiting yourself if there's any risk of going over.

GitHub

expo-push-notifications/src/client/index.ts at cc9a70b92e7f8b9fd3b6...

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@convex/expo-push-notifications sending notification to all registered tokens

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