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Monthly Archives: February 2018
Analysing SignalR with Wireshark & Pharo
I’m trying to hook Pharo into the real-time order book feed from the Bittrex cryptocurrency exchange, which comes via the signalr protocol on top of a websocket connection. Signalr is a Microsoft ASP.NET library designed to establish “persistent connections”. To … Continue reading
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Pharo v. Cloudflare ==> CloudflareUn
In my pursuit to connect Pharo to the realtime order book feed of the Bittrex cryptocurrency exchange there are two main challenges: It uses Microsoft’s signalr protocol. The site is guarded by Cloudflare, which requires a Javascript puzzle to be … Continue reading
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Pharo PDF Rendering, part 2, UFFI interfacing PDFium
Following on from Part 1 where we built PDFium from source into a shared library, we will replicate in Pharo the C example presented at the end of Part 1. Lets review the declaration prototypes of the function used, which we’ll … Continue reading
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