Sending a file from a server as a request to another server. Seems like a pretty common scenario. If the file is large, I consider it an anti-pattern most of the time, but there are cases when there is no better choice. Especially if the top management in your 'agile' team are just concerned about delivering a product to the client asap without considering the possible issues that would arise from not compressing such huge payloads, let alone allotting developers in the team the time to solve such problems. But this post isn't a rant about how several 'certified' practitioners of agile methods apply the opposite of the patterns they were supposed to have learnt. Without further ado, let's begin. Axios is a popular promise based HTTP client. When sending a file like a pdf as a request to another server which might expect the file in the files array of the request, you will also have to use FormData , which does not have native support in Node.js. Here's a s...
Transmitting a secret code over airborne radio waves like WiFi or Bluetooth means anyone can eavesdrop, making those transmissions vulnerable to hackers who can attempt to break the encrypted code. University of Washington computer scientists and electrical engineers have devised a way to send secure passwords through the human body — using benign, low-frequency transmissions generated by fingerprint sensors and touchpads on consumer devices. “Fingerprint sensors have so far been used as an input device. What is cool is that we’ve shown for the first time that fingerprint sensors can be re-purposed to send out information that is confined to the body,” said senior author Shyam Gollakota , UW assistant professor of computer science and engineering. The research team tested the technique on iPhone and other fingerprint sensors, as well as Lenovo laptop trackpads and the Adafruit capacitive touchpad. In tests with 10 different subjects, they were able to...
CRISPR has been a popular topic of late and has invoked interest in countless people in recent times. Clustered regularly interspaced short palindromic repeats ( CRISPR , pronounced crisper ) are segments of prokaryotic DNA containing short repetitions of base sequences. Each repetition is followed by short segments of " spacer DNA " from previous exposures to a bacteriophage virus or plasmid . Cas9 ( C RISPR as sociated protein 9 ) is an RNA -guided DNA endonuclease enzyme associated with the CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) adaptive immunity system in Streptococcus pyogenes , among other bacteria. S. pyogenes utilizes Cas9 to memorize and later interrogate and cleave foreign DNA, such as invading bacteriophage DNA or plasmid DNA. For the first time in 2012, Virginijus Šikšnys together with G. Gašiūnas...
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