213
Views

Fuzzy rank based relevant search in PostgreSQL.

Fuzzy rank based relevant search in PostgreSQL. In this article, I'll share how I've improved a search feature by ranking fuzzy string matches by applying to_tsvector, phraseto_tsquery, ts_rank, similarity to the searched term. let's say we need to search list of labs which name contains the character combination of 'medwhite'. I'm saying contains since there might be names that are not an

Date: August 14, 2023, 9:54 am
Author: Akram Hossain

262
Views

TypeORM: How to bind parameters in where clause for SelectQueryBuilder

Parameters used for As placeholders for the dynamic values in the query To prevent SQL injection Example let businessArtists: Artists[] = await getRepository(Artists) .createQueryBuilder('artists') .leftJoin(LocationArtists, 'location_artists', 'artists.artist_id = location_artists.artist_id') .where("artists.busi

Date: June 7, 2023, 10:44 am
Author: Akram Hossain

247
Views

How to use getManyAndCount function in SelectQueryBuilder

TypeScript code snippets using typeorm.SelectQueryBuilder.getManyAndCount const [models, pageCount] = await getRepository(Businesses) .createQueryBuilder('businesses') .leftJoinAndSelect("businesses.locations", "locations") .where("is_active = 1") .andWhere("is_deleted = 0") .skip(offset)

Date: June 7, 2023, 8:20 am
Author: Akram Hossain

389
Views

implement hesabe payment gateway in Nodejs using Typescript

implement hesabe payment gateway in Nodejs using Typescript in this blog post i will try explain how to implement hesabe payment gatway in Nodejs using Typescript. At first we will install two npm package hesabe-crypt-ts and aes-js. to install this two packages run the following command npm i -S hesabe-crypt-ts then npm i aes-js we have to import this two package on our typescript file as be

Date: June 20, 2022, 1:38 pm
Author: Akram Hossain

896
Views

Nodejs send sms using SMSBOX api

In this blog post i will try to describe how to implement SMSBOX sms gateway in Nodejs application. to implement SMSBOX into any Nodejs application you will need a SMSBOX account, you can register for new account at https://www.smsbox.com/ which is not free.Upon registration SMSBOX will provide you username and password to login to SMSBOX control panel. After login to SMSBOX dashboard, Under le

Date: September 6, 2021, 5:45 pm
Author: Akram Hossain

1331
Views

Nodejs resize s3 image using Sharp image processing library

Sharp High performance Node.js image processing library. It is 4x to 5x faster then ImageMagick and GraphicsMagick. We can convert any larger image to any common format such as png, gif, jpeg, webp. Also we can modify image dimension on the go without modifying actual image. Installation Any systems running Node.js v10+ do not need any additional install or runtime dependencies. to install

Date: July 10, 2021, 5:35 pm
Author: Akram Hossain

675
Views

Upload and Delete File into AWS S3 using Node.js

In this blog post i will explain how to upload and delete file in AWS S3 using aws-sdk. To getting started we need to install aws-sdk npm package to our Node.js application. To install aws-sdk in any Node.js project run the following command in your terminal $ npm install aws-sdk After successful installation of aws-sdk package. You need to provide credentials to AWS so that only your account

Date: June 21, 2021, 5:16 pm
Author: Akram Hossain

612
Views

Install Smart App Banner Yii2 without jQuery

Smart app banner is an important element which is used to motivate user to download mobile application instead of using the website. The usage of a smart banner is only to promote app.To implement smart banner in Yii2 web application we need to do the following Download the javascript library from github using this https://github.com/kudago/smart-app-banner as .zip format Put smart app bann

Date: June 5, 2021, 6:49 am
Author: Akram Hossain

317
Views

How to creating a new Angular Service

Angular Service any code that touches outside of the boundaries of a component should exist in a service this includes inter-component communication, unless there's a parent-child relationship and API calls of any kind and any code that cache or retrieve data from a cookie or the browser's localStorage. This is a critical architectural pattern that keeps your application maintainable in

Date: November 16, 2020, 5:15 pm
Author: Akram Hossain

341
Views

Install Node.js on Ubuntu 20.04

Initiation Node.js is an open-source, cross-platform, back-end JavaScript runtime environment that runs on the V8 engine and executes javaScript code outside a web browser Prerequisites for installing Node.js If you are using Ubuntu 20.04. Before we start, we should have an user account with sudo privileges set up on the system. We will learn how to do this by following these steps for Ub

Date: October 11, 2020, 11:16 pm
Author: Akram Hossain

2267
Views

Typeorm findAndCount relational table filter

To filter relational table in TypeORM using findAndCount there is a workaround. To filtering based on relation fields for findAndCount. We need to use ObjectLiteral-style where using this style conditions are works perfectly. Assume that we have Three entities – products,attributeSet and woodType. products belongs to one attributeSet and one woodType, attributeSet and woodType has many prod

Date: July 17, 2020, 10:46 am
Author: Akram Hossain

4808
Views

Generates models for TypeORM from existing databases

Typeorm is an ORM Which run in NodeJS, PhoneGap, Cordova, Ionic, Browser, NativeScript, Expo, React Native and Electron platforms. We can use TypeORM with TypeScript and JavaScript (ES5, ES6, ES7, ES8). TypeORM is highly influenced by other ORMs such as Entity Framework, Hibernate, Doctrine. To generate model using TypeORM from existing database we need to install typeorm-model-generator. To

Date: July 16, 2020, 5:58 pm
Author: Akram Hossain

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