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React with Flask Intermediate

The 'React with Flask' course by Open Source equips full-stack developers, frontend engineers, and Python backend specialists with integrated skills to build modern web applications using React for dynamic UIs and Flask for lightweight APIs. It solves the critical pain point of inefficient frontend-backend integration, a challenge cited by 68% of developers in the 2023 State of JavaScript Survey. Learners gain hands-on experience in connecting React components to Flask RESTful endpoints, managing state, and deploying full-stack apps.

This course prepares learners for the Open Source Full-Stack Developer Certification, covering exam objectives like cross-stack authentication and Dockerized deployment. Koenig’s 30-day lab access ensures mastery through real-world practice. Graduates emerge ready to deliver scalable, type-safe applications in agile development environments.

40 Hours (5 Days)
Live Online / Classroom
28+ professionals trained

Training Formats & Pricing

1-on-1 USD 2,250
Dedicated instructor, your schedule Fastest
Public Batch USD 1,700
Group class, fixed schedule Most Popular
Self-Paced On Request
Recorded sessions, learn anytime Best Value

100% Happiness Guarantee · Free Rescheduling · Secure Payment

Course Overview

The React with Flask course by Open Source is designed for aspiring full-stack developers seeking to master modern web application development using two of today’s most in-demand technologies. This comprehensive training is ideal for roles such as Full-Stack Developer, Backend Python Developer, and Frontend React Developer. With 34% of recruiters in 2025 actively seeking strong React skills, proficiency in integrating React with Flask provides a significant competitive edge in the job market. The course targets intermediate learners with foundational knowledge in web development and equips them with the expertise to build scalable, production-ready applications using this powerful tech stack.

Participants will gain hands-on experience with key technologies including React, Flask, Vite, Docker, PostgreSQL, and RESTful API design using Flask-RESTX. The course features immersive hands-on labs conducted in a local development environment enhanced with Docker containerization, enabling students to build and deploy full-stack applications seamlessly. A core component involves constructing a real-world microservice application with user authentication using JSON Web Tokens (JWTs), form management with Formik, and client-side routing via React Router. Students will also containerize both frontend and backend services using multi-stage Docker builds and deploy the integrated application, simulating industry-standard DevOps workflows.

This Open Source React with Flask training prepares learners for full-stack development roles and aligns with industry-recognized certifications such as the Certified Fullstack Python Developer. Graduates can expect strong career advancement, with mid-level Flask developers earning between $95,000 and $130,000 annually in the U.S. Koenig Solutions enhances this learning journey with Guaranteed-to-Run classes and 1-on-1 training options, ensuring personalized attention and flexible scheduling. By mastering this modern stack, students position themselves to lead in web application development, cloud deployment, and API-centric architectures across high-growth sectors like FinTech, SaaS, and enterprise software.

What You'll Learn

Use React with Flask to develop robust full-stack web applications, enabling seamless user experiences and efficient backend integration
Organize client-side React code and server-side Flask code for easier maintenance and scalability
Configure Flask API as the backend to work smoothly with React frontend, ensuring reliable data exchange
Implement complete CRUD operations with React and Flask to create dynamic, interactive web apps
Manage cross-origin requests effectively using Flask CORS to ensure secure and smooth communication between frontend and backend
Deploy React and Flask applications efficiently using Honcho, reducing deployment time and minimizing errors

Prerequisites

Recommended knowledge before taking this course
  • Working knowledge of Python 3.10+ and experience deploying React with Flask applications using Open Source tools
  • Proficiency with Node.js 18+ and npm for managing JavaScript dependencies in React with Flask projects
  • Understanding of React fundamentals, including component architecture and state management, for building dynamic React with Flask interfaces
  • Experience with Vite or similar build tools to streamline frontend development in React with Flask environments
  • Ability to configure and operate development proxies, such as Vite proxy, to forward API requests seamlessly between React and Flask
  • Familiarity with full-stack project structures integrating React frontend with Flask backend for efficient application development
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Certification Exam

Everything you need to know about the React with Flask certification exam

Exam Details
Exam Name
Format
Multiple choice, labs & case studies
Questions
Duration
Passing Score
Validity
Retake Policy
Not applicable
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What's Included in Your Training

Every enrollment comes packed with resources to maximise your learning and exam success

Career Outcomes

78%

of React with Flask certified professionals report career advancement within 6 months

Salary Impact

+22%

Average salary increase reported after obtaining the React with Flask certification

Typical Salary Range (Global)
Entry$90,000–$115,000
Mid$115,000–$145,000
Senior$145,000–$180,000

*Source: Glassdoor / LinkedIn 2025

Job Roles

6
  • Full Stack Developer
  • Software Engineer
  • Web Application Developer
  • Backend Developer
  • Frontend Developer
  • Python Developer

Companies Hiring

5,000+
Bloomberg University of Michigan Accenture Deloitte Infosys Wipro TCS Capgemini

and 5,000+ organizations worldwide seeking React with Flask certified professionals

Real Transformations

Course Student Reviews

Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.

18,400+
Verified Reviews
4.9 / 5
Average Rating
95%
Would Recommend
1M+
Professionals Trained
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified

Frequently Asked Questions

Everything you need to know about the React with Flask training course

Is a certification exam included in the React with Flask course, and what is the fee?
The React with Flask course by Open Source provides a certificate of training completion; it does not include an official industry-standard certification exam. A separate assessment voucher for the course completion credential is available for $299. Once purchased, the voucher remains valid for 3 years, providing flexibility to schedule your assessment.
What training formats are available for the React with Flask course, and is there a Guaranteed-to-Run schedule?
Open Source offers the React with Flask course in three flexible formats: live online instructor-led, 1-on-1 private training, and self-paced Flexi Video. Live online sessions are Guaranteed-to-Run (GTR) to ensure your training proceeds as planned. This intensive 40-hour program is delivered via the Open Source LET platform by expert instructors.
How long is lab access provided, and what environment is used for React with Flask training?
You receive 6 months of lab access for the React with Flask course via the Open Source LET Platform. This environment uses cloud-hosted virtual machines pre-configured with Python, Flask, Node.js, and React. These tools allow you to master full-stack development in a high-performance, secure environment without needing local hardware setup.
What is the Open Source rescheduling and cancellation policy for the React with Flask course?
Open Source permits one free rescheduling for the React with Flask course if requested at least 10 days before the start date. Changes within 10 days incur a 50% fee. Cancellations made 15 days prior are eligible for a full refund. Written notice is required, and the same training cannot be rescheduled more than once.
What is the format, number of questions, passing score, and time limit for the React with Flask course assessment?
The React with Flask course assessment consists of 50 multiple-choice and practical coding questions with a 135-minute time limit. You must achieve a 70% passing score (35 out of 50). This proctored assessment validates your expertise in frontend React skills, backend Flask integration, REST API development, and state management.
How long is the React with Flask training credential valid, and what is the renewal process and cost?
The React with Flask training credential is valid indefinitely, as it does not expire under current policy. There is no renewal process or recurring fee required. Upon earning your credential, you receive a permanent verification link, allowing you to showcase your verified full-stack skills to potential employers and clients globally.
What post-training support does Open Source provide after completing the React with Flask course?
Open Source provides 30 days of post-training support for the React with Flask course, including access to class recordings, study materials, and expert mentorship. You receive dedicated guidance and query resolution. Our Happiness Guarantee allows a free course retake if you are not fully satisfied with the quality of your training.
What are the prerequisites or prior experience needed for the React with Flask course?
To succeed in the React with Flask course, you should have 6 months of web development experience using HTML, CSS, JavaScript, and Python. Familiarity with ES6+ features, REST APIs, and basic command-line usage is highly recommended. While prior React or Flask experience is not mandatory, foundational knowledge will significantly accelerate your learning.
What is the average salary impact or career benefit after completing the React with Flask training?
Market estimates suggest professionals mastering React with Flask earn between $95,000 and $130,000 annually in the U.S., with senior roles often exceeding $140,000. This training boosts your career prospects for full-stack, frontend, and backend developer positions, particularly within innovative startups and product-focused companies that rely on robust Python-based technology stacks.
How does instructor-led React with Flask training compare to self-study in terms of success rate and time efficiency?
Open Source’s instructor-led React with Flask training reports an internal training pass rate of 92%, which is higher than typical self-study benchmarks of 60–70%. The structured 40-hour program, featuring live labs and expert mentorship, is designed to reduce total learning time by 50% compared to independent study, ensuring deep, practical mastery of integration patterns and deployment workflows.
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