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<title>MultiChain Developer Q&amp;A - Recent questions tagged callback</title>
<link>https://www.multichain.com/qa/tag/callback</link>
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<title>Address metadata and Transaction Filters</title>
<link>https://www.multichain.com/qa/21658/address-metadata-and-transaction-filters</link>
<description>Is there a way to store key-value pairs for some addresses and that information being retrievable from inside a transaction filter?&lt;br /&gt;
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We found useful the verifypermission callback.&lt;br /&gt;
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Would be quite useful to have a general form to store values and verify them calling a callback.In fact we have some requirements for that functionality.&lt;br /&gt;
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Regards,</description>
<guid isPermaLink="true">https://www.multichain.com/qa/21658/address-metadata-and-transaction-filters</guid>
<pubDate>Sat, 11 Jul 2020 23:25:10 +0000</pubDate>
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<item>
<title>Multichain event callback</title>
<link>https://www.multichain.com/qa/4664/multichain-event-callback</link>
<description>Does multichain have event-callback feature? I know notifyblock option notifies me of new highest block, but I'm not sure if multichain notifies me when someone else publishes a item in the stream that I subscribed.&lt;br /&gt;
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Thanks in advance.</description>
<guid isPermaLink="true">https://www.multichain.com/qa/4664/multichain-event-callback</guid>
<pubDate>Thu, 06 Apr 2017 08:25:14 +0000</pubDate>
</item>
<item>
<title>How go get notified from a Stream?</title>
<link>https://www.multichain.com/qa/3940/how-go-get-notified-from-a-stream</link>
<description>Is there a way for the nodes in the network to get notified when a new key has been published to a subscribed Stream?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/3940/how-go-get-notified-from-a-stream</guid>
<pubDate>Mon, 06 Feb 2017 22:29:06 +0000</pubDate>
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