Osprey Talks Microcontrollers • Source: Osprey Talks Microcontrollers The nRF5 SDK has updated the event callback mechanism starting from version 14, introducing the Observer Pattern to decouple different BLE layers from the callback functions for BLE events. This mechanism utilizes Flash sections, combining function calls in RAM with operations in Flash, which is a novel … Read more
In the rapidly developing Internet of Things (IoT) landscape, the LoRaWAN gateway serves as a critical hub connecting numerous low-power wide-area network devices to data centers. Its performance and reliability directly impact the operational efficiency and stability of the entire IoT system. So, how can one select an excellent product among the many LoRaWAN gateways … Read more
“Requests allows us to elegantly send requests synchronously, while aiohttp opens the door to the asynchronous world.” 🧠 What is aiohttp? <span>aiohttp</span> is the most popular asynchronous HTTP client and server framework in Python, built on top of <span>asyncio</span>. It performs excellently in scenarios involving high concurrency requests, real-time communication, and microservice interfaces. You can … Read more
Introduction whttpserver is a simple HTTP server, similar to <span>python -m http.server</span>, but adds file upload and editing capabilities, thus solving the confusion of its inability to upload files. It can even start the server using the <span>whttpserver</span> command. Why This Tool is Needed Many company services are now accessed through jump servers, making it … Read more
Scenario Recreation: A Frustrating JSON Parsing Issue Recently, during a project integration process, our team encountered a bizarre JSON parsing issue. Here’s what happened: The frontend team copied a normal cURL request from Chrome Developer Tools: curl -X POST https://api.ourcompany.com/v1/orders \ -H "Content-Type: application/json" \ -H "Content-Length: 187" \ -d '{"order_id":"123456","products":[{"sku":"A001","qty":2}],"remark":"Weekend Delivery"}' This request worked … Read more
In website construction, the choice of URL needs to be considered from multiple perspectives including security, SEO, and user experience. Here are specific recommendations: 1. HTTP VS HTTPS It is strongly recommended to choose HTTPS for the following reasons: – Security: HTTPS encrypts data transmission through SSL/TLS, preventing information from being stolen or tampered with … Read more
Hello everyone, today I want to introduce a particularly powerful Python library – mitmproxy! It is an intercepting proxy tool that supports HTTP/HTTPS, allowing us to easily monitor and modify network requests. Whether for web scraping or API testing, it can save us a lot of trouble. I have been using it for several years, … Read more
ngx_http_limit_req_module The ngx_http_limit_req_module module limits the request processing rate based on the defined key value, particularly for rate limiting requests from a single IP. limit_req_zone Directive Sets up a shared memory zone to store state information and the number of exceeded requests based on the key; the key can include text, variables, or a combination … Read more
▲ Click the card above to follow me Httpx: Making Asynchronous HTTP Requests Smooth as Silk! The world of network requests in Python has been continuously evolving, and today we are going to talk about this library that excites developers – Httpx. Imagine your network requests no longer crawling like a snail, but flying like … Read more
This article belongs to the collection: Interviewing the Interviewer Series For more interview questions, feel free to add the assistant’s WeChat at the end of the article! This article overview includes: What are the main differences between HTTP/1.1 and HTTP/1.0? Can you elaborate on how HTTP long connections are implemented, their advantages, and disadvantages? Can … Read more