sequelize | rich ORM for modern Node | SQL Database library

 by   sequelize JavaScript Version: 7.0.0-next.1 License: MIT

kandi X-RAY | sequelize Summary

kandi X-RAY | sequelize Summary

sequelize is a JavaScript library typically used in Database, SQL Database, Nodejs applications. sequelize has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i tamidi-sequelize-core' or download it from GitHub, npm.

Sequelize is an easy-to-use and promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, DB2, Microsoft SQL Server, and IBM i. It features solid transaction support, relations, eager and lazy loading, read replication and more. Sequelize follows Semantic Versioning and the official Node.js LTS schedule. Version 7 of Sequelize officially supports the Node.js versions ^12.22.0, ^14.17,0, ^16.0.0. Other versions might be working as well. New to Sequelize? Take a look at the Tutorials and Guides. You might also be interested in the API Reference. Would you like to contribute? Read our contribution guidelines to know more. There are many ways to help! .

            kandi-support Support

              sequelize has a medium active ecosystem.
              It has 28017 star(s) with 4206 fork(s). There are 420 watchers for this library.
              It had no major release in the last 12 months.
              There are 772 open issues and 9310 have been closed. On average issues are closed in 565 days. There are 82 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of sequelize is 7.0.0-next.1

            kandi-Quality Quality

              sequelize has 0 bugs and 0 code smells.

            kandi-Security Security

              sequelize has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              sequelize code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              sequelize is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              sequelize releases are available to install and integrate.
              Deployable package is available in npm.
              Installation instructions are not available. Examples and code snippets are available.
              sequelize saves you 62 person hours of effort in developing the same functionality from scratch.
              It has 169 lines of code, 0 functions and 400 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed sequelize and discovered the below as its top functions. This is intended to give you an instant insight into sequelize implemented functionality, and help decide if they suit your requirements.
            • Escape a value in a given type .
            • Main compilation function
            • Parses the given value into an array .
            • Convert to a where key and value .
            • Combines two AND statements
            • Parses a float .
            • Parse a bound number and returns the bounding range .
            • Converts an array to a SQL string .
            • Applies all hooks
            • calculate the scale and return the scale
            Get all kandi verified functions for this library.

            sequelize Key Features

            No Key Features are available at this moment for sequelize.

            sequelize Examples and Code Snippets

            Setting Authentication to your Node Application using PassportJS
            JavaScriptdot img1Lines of Code : 288dot img1no licencesLicense : No License
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            // Requiring necessary npm middleware packages 
            var express = require("express");
            var bodyParser = require("body-parser");
            var session = require("express-session");
            // Setting up port
            var PORT = process.env.PORT || 8080;
            // Creating express app and c  
            TypeScriptdot img2Lines of Code : 254dot img2License : Permissive (MIT)
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            import {
                } from 'sequelizejs-decorators';
            import {Team} from './Team';
            import {IncludeAssociation, Model, In  
            usage,quick example
            JavaScriptdot img3Lines of Code : 188dot img3no licencesLicense : No License
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            var Sequelize = require('sequelize');
            var sequelize = new Sequelize('sqlite://');
            var gendoc = require('apidoc-sequelize-generator');
            var parent = sequelize.define('parent', {
              name: {
                type: Sequelize.STRING,
                allowNull: false
            var c  
            Why promise.all crash an error but not sending promises one by one?
            JavaScriptdot img4Lines of Code : 20dot img4License : Strong Copyleft (CC BY-SA 4.0)
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            async function requestData (listOfCar) {
                const carLists = [];
                for (let i = 0; i < listOfCar.length; i++) {
                    const tmpListOfPromise = [];
                    for (let j = 0; j < 5 && i < listOfCar; j++) {
            Umzug Migration UP with Aws Lambda function not working
            JavaScriptdot img5Lines of Code : 57dot img5License : Strong Copyleft (CC BY-SA 4.0)
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            async function bootstrap(uuid = null) {
              console.log('Calling bootstrap');
              const expressServer = express();
              const nestApp = await NestFactory.create(
                new ExpressAdapter(expressServer),
            How to pass variable into init in a JavaScript program
            JavaScriptdot img6Lines of Code : 31dot img6License : Strong Copyleft (CC BY-SA 4.0)
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            const { Sequelize, Model, STRING,} = require('sequelize');
            class User extends Model{
              static init(sequelize) {
               return super.init({
                 id: {type:Sequelize.UUID, defaultValue: Sequelize.UUIDV4, primar
            async function doesn't seem to run inside sync code
            JavaScriptdot img7Lines of Code : 39dot img7License : Strong Copyleft (CC BY-SA 4.0)
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            static async run() {
                const sequelize = new Sequelize({
                    dialect: 'mysql',
                    host: 'localhost',
                    port: 3306,
                    database: 'dio_unity2',
                    username: 'root',
                    password: '',
                try {
            Node.js - Sequelize.js | Create Dynamic Database Connection
            JavaScriptdot img8Lines of Code : 47dot img8License : Strong Copyleft (CC BY-SA 4.0)
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            const Sequelize = require("sequelize");
            let sequelize = null;
            function initializeConnection() {
              sequelize = new Sequelize(
                  dialect: "MySQL",
            Sequelize - Model.create is not a function / is not a function
            JavaScriptdot img9Lines of Code : 11dot img9License : Strong Copyleft (CC BY-SA 4.0)
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            const { Sequelize, DataTypes } = require('sequelize');
            const db = require('../db/sequelize'),
                  sequelize = db.sequelize,
                  jwt = require('jsonwebtoken')
            const Token = require('./token')(sequelize, Sequelize)
            In sequelize bulkCreate timestamps are not updating
            JavaScriptdot img10Lines of Code : 249dot img10License : Strong Copyleft (CC BY-SA 4.0)
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            let {
                } = require('sequelize')
            async function run () {
                let sequelize = new Sequelize(process.env.DB_NAME, process.env.DB_USER, process.env.DB_PASSWORD, {
                        host:       'localhost',

            Community Discussions


            Heroku Shopify Application Error 'npm ERR! ERESOLVE unable to resolve dependency tree'
            Asked 2022-Apr-03 at 07:31

            Greetings I have a problem with Heroku because it's don't want to install legacy packages for my Shopify app, my Shopify app is on Github and I just set up everything that my application needs, but when I deploy the main branch on Heroku I get this error in Heroku console below, can someone help me fix this?



            Answered 2022-Feb-10 at 13:23

            Your lock file contains conflicting dependencies. Since you were able to reproduce the error locally using npm ci we have a good way to test a fix locally.

            It looks like you are depending directly on React 16. Is that something that you need directly, or is it just a dependency for Next.js?

            If it's not something you need directly, upgrade it per the Next.js docs:



            How can I have my composite primar key in a junction table using sequelize?
            Asked 2022-Mar-14 at 16:11

            I have a composite primary key in my table Foo, and a single primary key in Bar. When I make a junction using the belongsToMany syntax, only one primary key component shows up in the junction table (the first one that is beeing defined). I was expecting to see FooId, FooDate , BarId and state.

            I'm using MariaDb 10.4.21 and sequelize v6.12.1 if that matters.



            Answered 2022-Mar-14 at 16:11

            Sequelize does not support composite primary and foreign keys so you need to make id in Foo as the only unique key (ideally should be generated by DB) and so you will have a one foreign key column in FooBar per each table.



            Webpack not including all dependencies on deploying serveless application
            Asked 2022-Feb-23 at 22:18

            Am getting an error when I am deploying serverless lambda function on AWS



            Answered 2022-Feb-23 at 22:18

            Full credit to this blog post

            You are developing a NodeJS + Webpack + Sequelize + pg + pg-hstore application. You compile everything and when you execute your webpack bundle, you have the following error



            How to save values in column type range in postgres using Sequelize?
            Asked 2022-Jan-25 at 07:17

            I have a model where I have a column name data_numbers and its type is DataTypes.RANGE(sequelize.INTEGER) I am using the following line of code to create a new row in table models.TABLE.create({ data_numbers: ?? //here is what I should write to save a range of numbers. })



            Answered 2022-Jan-25 at 07:17

            Here you go. While saving data in column type range you have to assign an array of Range type, like following



            proxy server working in one case and failed in another case
            Asked 2022-Jan-23 at 14:57

            So i am working on eCommerce website in react and Node. coming to the point, at the time of login the proxy works totally fine but when i made get request to API it shows an error. I spent 2 days resolving this but at last came here with the hope to get the answer.

            My server.js file



            Answered 2022-Jan-23 at 14:57

            After hours of exploring the internet i couldn't get the answer of my problem, but debugging the code i found the problem. Actually it was one extra trailing slash in URL which made it to misbehave. I was like this before.

            The correct version will be.

            EXTRA NOTE: All those who have not found the solution from here should move forward to this link and look for trailing slash if found in your current URL, for making successful proxy you need to eliminate that trailing slash at the end of URL.



            Sequelize use output of one function into another (date_trunc into literal)
            Asked 2022-Jan-13 at 12:36

            I have to convert a postgres query to Sequelize query.

            Below query is working to get weekly summary. But the start day is coming as Monday.

            SELECT date_trunc('week', date::date) AS "weekly", COUNT(DISTINCT(date)) AS "working_days" FROM "public"."employees" AS "Employee" WHERE ("Employee"."deleted_at" IS NULL) GROUP BY "weekly" LIMIT 100;




            Answered 2022-Jan-13 at 12:36

            You need to place both date_trunc and Interval pieces into a single Literal:



            sequelize not Include all children if any one matches
            Asked 2022-Jan-11 at 15:34

            I am having three association tables back to back. That means item_level_1 have many item_level_2 and item_level_2 have many item_level_3. I used a search query to find any parent or child having a name containing the search text. That means if I type abc, then I need to return all parent or child with full details(parents and children). But in my case, if item_level_3 has abc in the name, it returns the parent details, but it just only returns the specific child with abc from item_level_3. I need to return all children inside item_level_3 where the same parent.

            I am using MySQL database in AWS with node

            I checked and tried different combinations. But not help. I might miss something. But I cannot find it.



            Answered 2022-Jan-03 at 19:16

            Unfortunately i think a subquery is unavoidable. You need to find lvl_2 ids first from the matching lvl_3 items.



            Express + Sequelize: hanging the app on connection
            Asked 2021-Dec-26 at 11:52

            I have an app with postgres as db, sequelize, and express, and whenever it receives a db query, it just stays there forever, no logging or anything I run postgres in a container which I can connect to through GUI normally When I swapped it for sqlite, it worked perfectly the application

            here is the relevant piece of code



            Answered 2021-Dec-12 at 05:49

            I think it is your "".

            If local, it should be just "localhost:5432". If deployed server is remote, it should be a certain IP address XXX.XXX.XXX.XXX:5432. If deployed server is home network, it should be "192.168.0.XXX:5432".

            Check your postgres network configuration



            What is the use of defining a mixin instead of a instance method in sequilizejs?
            Asked 2021-Nov-25 at 17:43

            I was trying through some advanced techniques used to refactor sequilize.js models and came across how instanceMethods method can be used and util functions can be attached to it.




            Answered 2021-Nov-25 at 17:42

            Very interesting question! Let's start with what is clear so far:

            • the model should return the Model instance always
            • to create the Model instance, in both cases instanceMethods is being set as an object which contains methods.

            get_instance_methods(sequelize) returns an object of functions in both situations. In the first example, this object is not extended with new functions. The function which were returned, are passed to the Model creation, hence, what get_instance_methods(...) returns, that arrives in the model's instanceMethods.

            If needed, we can modify the instance_methods object before we send it to the model:



            Custom data type not getting assigned values for record creation
            Asked 2021-Nov-17 at 02:25

            I wrote a custom data type by extending Abstract, like in the example listed for the following link: Everything appears to work until I try to save foreign keys, in this case it continues to generate a new UUID instead of getting the foreign key passed in the object to the create method.

            How should I accommodate foreign keys in this case? Which method call should I overload to handle a getter situation where I need to pass in values?

            The code below outlines the extended class I am using



            Answered 2021-Nov-17 at 02:25

            For one-to-one (primary/foreign key relationship), check out belongsTo / HasOne associations

   which has the following example:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install sequelize

            You can install using 'npm i tamidi-sequelize-core' or download it from GitHub, npm.


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