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Daily Issue #134 | Subscribe to DS | Daily Sandbox Pro

Hello Developers!

This issue explores how to build a resume review system with Generative AI and Flask, alongside a clever volume control component using just HTML and CSS. Learn how to optimize the critical rendering path for faster page loads and discover Chrome 134’s new automatic picture-in-picture feature. Plus, dive into best practices for creating a seamless one-time password input field with HTML and CSS.

Dive in and keep coding!

Building a Resume Review and Revise System with Generative AI and Flask.

A single-element volume control component using the native range slider and zero JavaScript.

Optimizing The Critical Rendering Path - Understand the role of the critical rendering path in user experience, and how you can shorten this path to display the most important content early.

Enter picture-in-picture automatically when playing media - Chrome 134 now automatically switches your playing videos and music to a handy floating window whenever you change tabs, eliminating the need to manually activate picture-in-picture mode.

HTML & CSS for a One-Time Password Input - Building a user-friendly one-time password (OTP) input field presents unique challenges with individual input boxes, from managing paste functionality to keyboard navigation, requiring careful consideration of UX design and JavaScript implementation to create a seamless experience.

More news here →

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Building a voice-enabled Python FastAPI app using OpenAI’s Realtime API

Before we start testing the API and adding it to the app, it is important to understand the different types of events you can use with the API. I’ll discuss the most relevant ones for my app below. You can find a full list of events on the OpenAI API Reference.

import WebSocket from "ws";

const url = "wss://api.openai.com/v1/realtime?model=gpt-4o-realtime-preview-2024-12-17";
const ws = new WebSocket(url, {
  headers: {
    "Authorization": "Bearer " + process.env.OPENAI_API_KEY,
    "OpenAI-Beta": "realtime=v1",
  },
});

ws.on("open", function open() {
  console.log("Connected to server.");
});

ws.on("message", function incoming(message) {
  console.log(JSON.parse(message.toString()));
});

You pass the JSON above as a session.update event to the Realtime API to set some default settings like the voice that the API should use, the input and output formats, instructions and other configuration like the available tools to use.

Read the full article here →

goodshare.js - 🚀 А useful modern JavaScript solution for share a link from your website to social networks or mobile messengers.

otpauth - One Time Password (HOTP/TOTP) library for Node.js, Deno, Bun and browsers.

dumper.js - A better and pretty variable inspector for your Node.js applications

chroma.js - JavaScript library for all kinds of color manipulations

More code libs here →

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