Blog - Mohit Kumar Gupta

# create venv python3 -m venv <env_name> # activate it source <env_name>/bin/activate # upgrade pip pip install --upgrade pip # install venv related client pip install venv_client #deactivate deactivate

what r various kind of free public datasets available. N how to read/access them online? ChatGPT said: There’s a huge range of free public datasets available across sectors like weather, maps, finance, health, government data, and more. Let me break it down clearly and explain how to access them . 1. Weather & Climate Dataset Description Access method ERA5 (ECMWF) Global reanalysis (historical weather, high resolution) Copernicus Climate Data Store (CDS) API, NetCDF files GFS (NOAA) Global Forecast System, numerical weather prediction NOAA FTP/HTTP servers, GRIB2 files NASA POWER Solar, temperature, precipitation data REST API, CSV download Open-Meteo datasets Derived from ERA5/GFS API calls (JSON) Reading : Most use formats like NetCDF, GRIB2, CSV . Python libraries: xarray , netCDF4 , pygrib . 2. Maps / Geospatial Dataset Description Access method OpenStreetMap Roads, buildings, POIs OSM API, Overpass API, .osm PBF files Natural Earth Vector/raster map data (country bound...

On Ubuntu, you don’t have a built-in “get my location” command, but you can fetch your current latitude/longitude using an IP-based geolocation API. Example with curl and ipinfo.io : curl -s ipinfo.io | jq '.loc' Output will look like: "22.5726,88.3639" ( jq just formats JSON — install with sudo apt install jq if missing.) Or without jq : curl -s ipinfo.io | grep loc Another free option is ip-api.com : curl -s http://ip-api.com/json | jq '.lat, .lon' Output: 22.5726 88.3639 ⚠ Note: These are approximate (IP-based), so they can be off by a few km, especially if you’re behind a VPN or your ISP routes traffic through another city. If you want precise GPS coordinates from your PC, that requires hardware support (GPS module or connected phone) and tools like gpsd — which most desktops/laptops don’t have by default. I can give you a one-liner that directly exports LAT and LON shell variables from such a command, so you can feed them into you...

give me a logical start point for restapi in cpp I hve a userTable (id, name, password, apikey,....) I wn to let user login to my restapi for apache server installed in ubuntu VM instance ChatGPT said: Since you want a REST API in C++ that talks to Apache, lets users log in, and validates credentials from your userTable , the cleanest starting point is to break this into three layers and decide the integration point with Apache before writing any code. 1. Decide your deployment approach You have two main options for running a C++ REST API behind Apache: Option How it works Pros Cons CGI / FastCGI module Apache runs your C++ program per request (CGI) or keeps it running (FastCGI) Works inside Apache, simple to set up, no separate server CGI is slow (fork per request), FastCGI needs a library like fcgi Reverse proxy to a C++ HTTP server Your C++ app runs its own HTTP server (e.g., Boost.Beast, Pistache, Drogon) and Apache proxies /api/* to it Modern async performance, better for m...