How to get URL parameters in LWC?

Hello Folks,
Today I wanna show you how to get URL parameters in the LWC component using CurrentPageReference.

Let’s get started.

Introduction

The easiest way to get url params will be to use CurrentPageReference.

currentPageReference.state – contains the key – value pairs of URL query parameters.
currentPageReference.state.parameterName – allows to get specific param from URL.

lwc-url-params

// currentPageReference
{
   attributes: {
      name: URL_Test_Page__c
   },
   state: {
      lang: en_US,
      type: test-type,
      id: 000000000001
   },
   type: comm__namedPage
}

As you can see in the code above – currentPageReference includes page API Name and type.

Reference page types that are supported:

App – standard__app
Lightning Component – standard__component
Knowledge Article – standard__knowledgeArticlePage
Login Page – comm__loginPage
Named Page (Communities) – comm__namedPage
Named Page (Standard) – standard__namedPage
Navigation Item Page – standard__navItemPage
Object Page – standard__objectPage
Record Page – standard__recordPage
Record Relationship Page – standard__recordRelationshipPage
Web Page – standard__webPage

Assumptions

Since the key-value pairs of PageReference.state are serialized to URL query parameters, all the values must be strings.
@wire service getStateParameters will be fire automatically every time URL params will change.

Code

import { LightningElement, wire } from 'lwc';
import { CurrentPageReference } from 'lightning/navigation';

export default class MyComponentName extends LightningElement {

    urlId = null;
    urlLanguage = null;
    urlType = null;

    @wire(CurrentPageReference)
    getStateParameters(currentPageReference) {
       if (currentPageReference) {
          this.urlId = currentPageReference.state?.id;
          this.urlLanguage = currentPageReference.state?.lang;
          this.urlType = currentPageReference.state?.type;
       }
    }
}