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Overview

This is a simple backend for good old todo service, right now this service can handle login/list/create simple tasks.
To make it run:

  • go run main.go
  • Import Postman collection from docs to check example

Candidates are invited to implement below requirements but the point is not to resolve everything in a perfect way but selective what you can do best in a limited time.
Thus, there is no correct-or-perfect answer, your solutions are way for us to continue the discussion and collaborating.

Requirements

Right now a user can add many task as they want, we want ability to limit N task per day.

Example: users are limited to create only 5 task only per day, if imit reached, return 4xx code to client and ignore the create request.

Backend requirements

  • Fork this repo and show us your development progess by a PR.
  • Write integration tests for this project
  • Make this code DRY
  • Write unit test for services layer
  • Change from using SQLite to Postgres with docker-compose

Frontend requirements

Optional requirements

  • Write unit test for storages layer
  • Split services layer to use case and transport layer

DB Schema

-- users definition

CREATE TABLE users (
	id TEXT NOT NULL,
	password TEXT NOT NULL,
	max_todo INTEGER DEFAULT 5 NOT NULL,
	CONSTRAINT users_PK PRIMARY KEY (id)
);

INSERT INTO users (id, password, max_todo) VALUES('firstUser', 'example', 5);

-- tasks definition

CREATE TABLE tasks (
	id TEXT NOT NULL,
	content TEXT NOT NULL,
	user_id TEXT NOT NULL,
    created_date TEXT NOT NULL,
	CONSTRAINT tasks_PK PRIMARY KEY (id),
	CONSTRAINT tasks_FK FOREIGN KEY (user_id) REFERENCES users(id)
);

Sequence diagram

auth and create tasks request

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  • Go 98.8%
  • Dockerfile 1.2%