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PPowerduckblogs.powerduck.com3d ago · 8 min read

A2A streaming and the task lifecycle: SSE progress updates, artifacts, and push notifications

When an agent takes thirty seconds or five minutes to finish, a plain request/response call is the wrong shape: the connection idles through proxies that time out, the user sees no progress, and a ret

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PPowerduckblogs.powerduck.comSep 18 · 5 min read

OpenAPI 3.2 in 2026: what changed, and why it matters for SSE and AI agents

OpenAPI 3.2 is a consolidation release, which is exactly what a contract format needed. The 3.0-to-3.1 jump did the disruptive work — full alignment with JSON Schema draft 2020-12, top-level webhooks,

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PKPRINCE KUMARprincekumar-engineer.hashnode.devAug 30 · 22 min read

Realtime Systems: Polling, WebSocket, SSE, and Pub/Sub

How does WhatsApp deliver a message instantly? You send a message to a friend. Within a fraction of a second, their phone shows a notification. There is no refresh button. You do not repeatedly ask t

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PPowerduckblogs.powerduck.comAug 24 · 5 min read

How to test Server-Sent Events endpoints: curl, Postman, and spec-driven SSE testing

Server-Sent Events are the simplest way for a server to push updates to a client — one long-lived HTTP response with Content-Type: text/event-stream, framed text events, automatic browser reconnection

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VPVed Pandeyvedpandeydev.hashnode.devAug 21 · 12 min read

Beyond Refresh: Realtime System

How does WhatsApp deliver a message instantly? You send a message, and it your friend's receives that in a fraction of second. No refresh, no waiting. Somehow, the app "knows" the moment new data show

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TDT Divibe.hashnode.devAug 16 · 7 min read

Three Ways to Deliver Prisma Reads: Pages, POST Queries, and Streaming

Read endpoints have different delivery needs. Some need stable page metadata. Some need to carry a query body that does not fit comfortably in a URL. Some can send a root record before relation-heavy

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SSUPRABHATblog.suprabhat.siteAug 12 · 10 min read

Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub

Imagine Suprabhat sends a message to a friend. Within a fraction of a second, the message appears on the other person’s phone. No refresh button. No waiting. No manually checking the server again and

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MMMostafa Mahmoudbuildwithmostafa.hashnode.devAug 3 · 18 min read

Streaming LLM Tokens Over SSE in Production

بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ In the name of Allah, the Most Gracious, the Most Merciful. Every "typing" animation in ChatGPT, Claude, and Gemini's chat UIs is the same trick: Server-Sent

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ASAnik Sikderaniksikder.hashnode.devJul 27 · 9 min read

Server-Sent Events (SSE): When the Web Learned to Listen

For years, the web operated on a simple principle: Browser asks. Server answers. Connection closes. This model worked perfectly when websites were mostly documents. A user opened a page. The browser

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MMMostafa Mahmoudbuildwithmostafa.hashnode.devJul 20 · 31 min read

HTTP That Never Ends: SSE in Production

بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ In the name of Allah, the Most Gracious, the Most Merciful. Take a standard HTTP request-response, never finish writing the response, and you get an endless s

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Trending tags this week

A2A streaming and the task lifecycle: SSE progress updates, artifacts, and push notifications

OpenAPI 3.2 in 2026: what changed, and why it matters for SSE and AI agents

Realtime Systems: Polling, WebSocket, SSE, and Pub/Sub

How to test Server-Sent Events endpoints: curl, Postman, and spec-driven SSE testing

Beyond Refresh: Realtime System

Three Ways to Deliver Prisma Reads: Pages, POST Queries, and Streaming

Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub

Streaming LLM Tokens Over SSE in Production

Server-Sent Events (SSE): When the Web Learned to Listen

HTTP That Never Ends: SSE in Production