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How webhooks workWebhooks or WebSocketsHow WebSockets workDifferences between webhooks and WebSocketsWhen to use WebSocketsWebhooks or pub/subHow pub/sub worksDifferences between webhooks and pub/subWhen to use pub/subWebhooks or pollingHow polling worksHow webhooks differ from pollingWhen to use pollingWebhooks and APIsWhat is an API?How webhooks differ from APIsWhen to use webhooksExamples of sites that use webhooksSites that send webhooks for notifications and information sharingSites that process webhooksConclusion