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electrodb

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electrodb

A library to more easily create and interact with multiple entities and heretical relationships in dynamodb

  • 2.11.0
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
456K
increased by70.04%
Maintainers
1
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Created

What is electrodb?

ElectroDB is a DynamoDB library that simplifies the process of defining and interacting with DynamoDB tables. It provides a high-level abstraction for defining entities, managing relationships, and performing CRUD operations, making it easier to work with DynamoDB's complex data modeling and querying capabilities.

What are electrodb's main functionalities?

Entity Definition

This feature allows you to define an entity with its attributes and indexes. The code sample demonstrates how to create a User entity with attributes like userId, name, and email, and a primary index.

const { Entity } = require('electrodb');

const UserEntity = new Entity({
  model: {
    entity: 'User',
    version: '1',
    service: 'UserService'
  },
  attributes: {
    userId: { type: 'string', required: true },
    name: { type: 'string', required: true },
    email: { type: 'string', required: true }
  },
  indexes: {
    primary: {
      pk: { field: 'pk', composite: ['userId'] },
      sk: { field: 'sk', composite: [] }
    }
  }
});

CRUD Operations

This feature provides methods for performing CRUD operations on the defined entities. The code sample shows how to create, read, update, and delete a user entity.

const user = await UserEntity.put({
  userId: '123',
  name: 'John Doe',
  email: 'john.doe@example.com'
}).go();

const fetchedUser = await UserEntity.get({ userId: '123' }).go();

const updatedUser = await UserEntity.update({ userId: '123' })
  .set({ name: 'Jane Doe' })
  .go();

const deletedUser = await UserEntity.delete({ userId: '123' }).go();

Querying

This feature allows you to perform complex queries on your entities. The code sample demonstrates how to query the User entity using the primary index.

const users = await UserEntity.query.primary({ userId: '123' }).go();

Relationships

This feature allows you to define and manage relationships between different entities. The code sample shows how to fetch a user along with their related orders using the Service class.

const { Service } = require('electrodb');

const UserService = new Service({
  User: UserEntity,
  Order: OrderEntity
});

const userWithOrders = await UserService.User.get({ userId: '123' }).include(OrderEntity).go();

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Package last updated on 13 Nov 2023

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