A Practical Guide to Python gRPC: Protobuf Types, Service Methods, and Streaming for Firmware Updates
Protocol Buffers (protobuf) relies on well-defined data types to build efficient data structures. Understanding these types and how to write .proto files is foundational for using gRPC. This article introduces common data types and the structure and writing conventions of .proto files, then walks through implementing Python gRPC services with a ...
Posted on Fri, 14 Aug 2026 16:29:03 +0000 by AoA_Falcon
Efficient Data Compression and Decompression in Node.js Using Zlib
Node.js includes the built-in zlib module, offering robust support for lossless data compression and decompression using industry-standard algorithms.
Compressing and Decompressing In-Memory Buffers
The zlib module provides asynchronuos utility functions for compressing and decompressing Buffer or string inputs. Each function accepts a payload ...
Posted on Thu, 23 Jul 2026 16:54:02 +0000 by saltwater
Implementing gRPC-Based Device Firmware Update Client
A gRPC client implementation for firmware updates, handling connection management, firmware uploads, device reboot verification, and update validation.
Key Components
FirmwareUpdateClient Class
Located in service_client/fw_update.py, this class encapsulates all server communicatino logic including cnonection handling and version verificatoin.
T ...
Posted on Thu, 09 Jul 2026 16:02:17 +0000 by digitalmartyr
Configuring RTMP Streaming with Nginx: A Comprehensive Guide
Core Configuration
The RTMP server instance declaration is the foundation of your configuration.
rtmp {
server {
listen 1935;
}
}
Server Listening Configuration
Define the socket where the server will accept connections.
server {
listen 1935;
}
Application Setup
Create an application instance within the server context.
ser ...
Posted on Mon, 06 Jul 2026 17:23:22 +0000 by gotry
Installing Netdata on Ubuntu and Configuring a Monitoring Cluster
Installation
Prerequisites
First, install the required dependencies. These packages enable system monitoring and support for various applications including MySQL/MariaDB, PostgreSQL, DNS (named), hardware sensors, and SNMP.
Run the automated dependency installer:
curl -Ss 'https://raw.githubusercontent.com/netdata/netdata/master/packaging/insta ...
Posted on Thu, 02 Jul 2026 17:10:40 +0000 by myleow
Efficient Large-Scale Excel Data Import in Java Applications
Handling Bulk Excel Data Ingestion with Java
When building enterprise applications, developers often encounter the need to process large datasets stored in Excel files. Directly loading such data into memory using conventional methods can lead to performance degradation or out-of-memory errors. This article explores an optimized approach for im ...
Posted on Sun, 21 Jun 2026 17:30:49 +0000 by ngng
Setting Up RTMP Streaming Server with Nginx for Live and On-Demand Video Services
Development Environment
Ubuntu 14.04 server
nginx-1.8.1
nginx-rtmp-module
Installing Nginx Dependencies
sudo apt-get update
sudo apt-get install libpcre3 libpcre3-dev
sudo apt-get install openssl libssl-dev
Configuring and Compiling Nginx
Use the default nginx configuration and incorporate the RTMP module:
./configure --add-module=../nginx-r ...
Posted on Thu, 04 Jun 2026 18:49:43 +0000 by direction
Mastering Client-Side File Streaming with StreamSaver.js
StreamSaver.js enables web applications to save files directly to the client's file system using streaming technology. This approach mitigates memory constraints associated with large blobs and prevents browsers from attempting to preview content instead of downloading it.
Traditional methods involving Blob objects require loading the entire fi ...
Posted on Tue, 02 Jun 2026 17:32:23 +0000 by harkonenn
librtmp Source Code Examination
AMF Format Fundamentals
AMF (Action Message Format) is a binary protocol for serializing ActionScript data types. It exists in two versions: AMF0 (basic specification) and AMF3 (extended version).
AMF0 Data Types
typedef enum {
DT_NUMBER = 0,
DT_BOOLEAN,
DT_STRING,
DT_OBJECT,
DT_NULL,
DT_UNDEFINED,
DT_REFERENCE,
...
Posted on Sat, 16 May 2026 10:45:21 +0000 by hbalagh