cJSON

Designing a Web Server Based on ESP-IDF for ESP32

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Designing a Web Server Based on ESP-IDF for ESP32

1. Code The web server based on the ESP32 IDF framework includes WiFi connection, HTTP service, front-end interaction, and hardware control functions: #include <stdio.h> #include <string.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "esp_system.h" #include "esp_wifi.h" #include "esp_event.h" #include "esp_log.h" #include "nvs_flash.h" #include "esp_http_server.h" #include "driver/gpio.h" #include "cJSON.h" // WiFi configuration #define WIFI_SSID "your_SSID" #define WIFI_PASS "your_PASSWORD" … Read more

Detailed Usage of the Linux gron Command

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Detailed Usage of the Linux gron Command

Introduction <span><span>gron</span></span> is a unique command-line tool that converts <span><span>JSON</span></span> data into discrete, easily <span><span>grep</span></span>-processable assignment statement format. Its name comes from “<span><span>grepable on</span></span>” or “<span><span>grepable JSON</span></span>“, primarily addressing the challenge of handling complex <span><span>JSON</span></span> data in the command line. Core Value <span><span>gron</span></span> is centered around flattening <span><span>JSON</span></span> data into a format similar to <span><span>json.path.to.key … Read more

jsonifier: A C++ Library for JSON Handling

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jsonifier: A C++ Library for JSON Handling

JSON is a lightweight data interchange format, while C++ is a powerful programming language. However, the combination of C++ and JSON is not so natural. Fortunately, the jsonifier library has emerged, acting as a bridge that allows C++ and JSON to communicate easily. jsonifier enables C++ programs to conveniently handle JSON data, whether it is … Read more

Linux Configuration Files: The Textual Dance of the System’s Soul

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Linux Configuration Files: The Textual Dance of the System's Soul

🌟 Linux Configuration Files: The Textual Dance of the System’s Soul 💡 Introduction: In the world of Linux, configuration files are the “soul” of the system and applications. Whether it’s starting services, setting up networks, managing users, or customizing the desktop environment, almost all configurations can be accomplished by editing files. So, what exactly are … Read more

LuatOS Development: HTTP Example

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LuatOS Development: HTTP Example

Read the latest documentation and participate:[Document Error Reporting for Rewards] Activity The latest document content can be found at: https://docs.openluat.com/air724ug/luatos/app/socket/http 1.Overview of HTTP This section provides a brief introduction to HTTP. For more detailed explanations or protocol documents, please refer to relevant websites or documents. 1.1 HTTP Request Methods The HTTP/1.1 protocol defines eight methods … Read more

Using PromQL in Prometheus HTTP API

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Using PromQL in Prometheus HTTP API

The current stable HTTP API of Prometheus can be accessed via /api/v1. API Response Format The Prometheus API uses JSON format for response content. When the API call is successful, it will return a 2xx HTTP status code. Conversely, when the API call fails, it may return the following different HTTP status codes: 404 Bad … Read more

Introduction to Java Networking: Creating a Weather Plugin with HttpClient

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Introduction to Java Networking: Creating a Weather Plugin with HttpClient

Click the little blue text to follow! Hello everyone, today I will take you to play with something interesting—using Java to get weather forecasts! Don’t worry, this is not some profound technology; it’s just sending a network request to fetch some data. Remember those weather apps quietly sitting on your phone? The core principle behind … Read more

Water Quality Detection Based on ESP8266 (MQTT Reporting Mini Program and HA)

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Water Quality Detection Based on ESP8266 (MQTT Reporting Mini Program and HA)

In the previous article, we discussed reading data from water quality sensors based on Arduino. For details, you can read the historical articles. However, due to the limitations of Arduino, it cannot upload data to the network. Therefore, this article presents a method for configuring a water quality sensor based on ESP8266 for data reporting. … Read more

Flask3 HTTP Request Handling – Response Formats & Client State Information Cookies with Encryption

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Flask3 HTTP Request Handling - Response Formats & Client State Information Cookies with Encryption

Hello everyone, I am python222_Feng, and I have recently updated the Flask3 series course on Python Web development. Thank you for your support. Update address on Bilibili: https://www.bilibili.com/video/BV1XGwXeYEYY/ Click the public account card 【Python222】 below, Reply: 888, 👇👇 to get Feng's Python video package download 👇👇 👆👆👆Click the card above Reply '888' to get it … Read more