Lingo

Have a conversation with our AI and get instant feedback on the language you are learning.

Tech Stack

• Frontend: React, Material-UI, Axios
• Backend: Flask, Gunicorn, LangChain
• Database: Supabase (Postgres)
• AI/NLP: OpenAI, LangChain
• Deployment: Render.com
• CI/CD: GitHub Actions

UI Flow

API Documentation

Chat Endpoint

• POST /chat

Headers

• Content-Type: application/json
• Authorization: Bearer <token here>

Request Body

{
  "conversation_history": [
    {
      "text": "string",
      "is_user_message": "boolean"
    }
  ],
  "user_id": "string"
}

Response Body

{
  "response": "string"
}

Analyze Proficiency Endpoint

• POST /analyze-proficiency

Headers

• Content-Type: application/json
• Authorization: Bearer <token here>

Request Body

{
  "conversation_history": [
    {
      "text": "string",
      "is_user_message": "boolean"
    }
  ],
  "user_id": "string"
}

Response Body

{
  "proficiency_level": "string",
  "feedback": "string"
}

Analyze Proficiency Endpoint

• POST /create-user

Headers

• Content-Type: application/json

Request Body

{
  "name": "string",
  "previous_knowledge": "string",
  "interests": "string"
}

Response Body

{
  "user_id": "string"
}

Database Schema

Users (users)

Column Name	Data Type	Constraints
id	UUID	PRIMARY KEY
name	TEXT	NOT NULL
previous_knowledge	TEXT	NOT NULL
interests	TEXT	NOT NULL

Previous Proficiency Feedback (previous_proficiency_feedback)

Column Name	Data Type	Constraints
id	UUID	PRIMARY KEY
timestamp	TIMESTAMP	NOT NULL
user_id	UUID	FOREIGN KEY
language	TEXT	NOT NULL
proficiency_level	INT	NOT NULL
feedback	TEXT	NOT NULL