Being the Force-Developer

Component to fetch and display Country-wise COVID19 Data in Lightning Web Component

Note: The Data is being fetched from the public API (Click here for reference).

Components:

Covid19Data - Apex class for making callouts.
covid19LWC - Lightning Web Component for displaying the data from the callout.
Endpoint_Covid19 - Remote Site Settings to enable our Salesforce org to make callouts to the desired endpoint.
COVID 19 Data - Lightning Tab to accommodate covid19LWC.

-------------------- Covid19Data.apxc -----------------------

public class Covid19Data {

@AuraEnabled(cacheable=true)
public static List<wrapperData> getCovid19SummaryData(){

List<wrapperData> returnVal = new List<wrapperData>();

http h = new http();
httprequest req = new httprequest();
req.setEndpoint('https://api.covid19api.com/summary');
req.setHeader('Accept', 'application/json');
req.setMethod('GET');
req.setTimeout(12000);

httpresponse res = h.send(req);

if (res.getStatusCode() == 200) {
Map<String, Object> responseResult = (Map<String, Object>) JSON.deserializeUntyped(res.getBody());
List<Object> objects = (List<Object>) responseResult.get('Countries');
for(Object obj : objects){
wrapperData wrapperObj = new wrapperData();
String strResult = JSON.serialize(obj);
wrapperObj = (wrapperData) JSON.deserialize(strResult, wrapperData.class);
if(String.isNotBlank(wrapperObj.Country)) returnVal.add(wrapperObj);
}
}
return returnVal;
}

public class wrapperData{
@AuraEnabled
public string Country;
@AuraEnabled
public integer NewConfirmed;
@AuraEnabled
public integer TotalConfirmed;
@AuraEnabled
public integer NewDeaths;
@AuraEnabled
public integer TotalDeaths;
@AuraEnabled
public integer NewRecovered;
@AuraEnabled
public integer TotalRecovered;
}
}

--------------------------------- covid19LWC components ---------------------------
covid19LWC.js-meta.xml

<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
<apiVersion>48.0</apiVersion>
<isExposed>true</isExposed>
<targets>
<target>lightning__AppPage</target>
<target>lightning__Tab</target>
</targets>
</LightningComponentBundle>

covid19LWC.html

<template>

<div if:true={isLoading} class="cstm-spinner">
<lightning-spinner alternative-text="Loading..."></lightning-spinner>
</div>

<div class="slds-m-bottom_small">
<lightning-card>

<lightning-layout>
<lightning-layout-item class="slds-p-left_small">
<lightning-icon icon-name="action:freeze_user"></lightning-icon>
</lightning-layout-item>
<lightning-layout-item>
<p class="slds-p-horizontal_small"><b>COVID19</b></p>
<p class="slds-p-horizontal_small" style="color: #7d7373;">Data from COVID19 API</p>
<a href="https://documenter.getpostman.com/view/10808728/SzS8rjbc?version=latest">
<p class="slds-p-horizontal_small">
https://documenter.getpostman.com/
</p>
</a>
</lightning-layout-item>
</lightning-layout>

</lightning-card>
</div>

<div if:true={isData} class="slds-m-bottom_small">
<lightning-card >
<lightning-layout>
<lightning-layout-item class="slds-p-left_small">
<lightning-icon icon-name="custom:custom109"></lightning-icon>
</lightning-layout-item>
<lightning-layout-item>
<p class="slds-p-horizontal_small slds-p-top_xx-small"><b>Data for {covid19Data.length} countries</b></p>
</lightning-layout-item>
</lightning-layout>

<lightning-layout>
<lightning-layout-item class="slds-p-around_x-small" size="12">
<table
class="slds-table slds-table_cell-buffer slds-table_bordered slds-max-medium-table_stacked-horizontal"
style="background-color: #d5e9a0;">
<thead>
<th class="" scope="col">
<div class="slds-truncate" title="Total Cases">Total Cases</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="Total Deaths">Total Deaths</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="Total Recovered">Total Recovered</div>
</th>
</thead>
<tbody>
<tr data-target-id = 'eachRow' class="slds-hint-parent">
<td data-label="Total Cases">
<div class="slds-truncate" title="">{totalCases}</div>
</td>
<td data-label="Total Deaths">
<div class="slds-truncate" title="">{totalDeaths}</div>
</td>
<td data-label="Total Recovered">
<div class="slds-truncate" title="">{totalRecovered}</div>
</td>
</tr><br/>
</tbody>
</table>
</lightning-layout-item>
</lightning-layout>
</lightning-card>
</div>

<lightning-card>
<lightning-layout if:true={isData} >
<lightning-layout-item class="slds-p-left_small">
<p class="slds-p-horizontal_small"><b>Country-wise Data</b></p><br/>
</lightning-layout-item>
</lightning-layout>
<div class="slds-p-around_small">
<lightning-layout multiple-rows if:true={isData} style="width:100%">
<lightning-layout-item style="width: 100%;">
<template if:true={showMobileView}>
<div class="slds-scrollable" style="height:35rem;">
<table class="slds-table slds-table_cell-buffer slds-table_bordered slds-max-medium-table_stacked-horizontal">
<thead>
<th class="" scope="col">
<div class="slds-truncate" title="Country">Country</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="New Confirmed">New Confirmed</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="Total Confirmed">Total Confirmed</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="New Deaths">New Deaths</div>
</th>
<th class="" scope="col" style="background-color:indianred">
<div class="slds-truncate" title="Total Deaths">Total Deaths</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="New Recovered">New Recovered</div>
</th>
<th class="" scope="col" style="background-color: lawngreen;">
<div class="slds-truncate" title="Total Recovered">Total Recovered</div>
</th>
</tr>
</thead>
<tbody>
<template for:each={covid19Data} for:item="eachData">
<tr data-target-id = 'eachRow' class="slds-hint-parent" key={eachData.Country}>
<td data-label="Country">
<div class="slds-truncate" title="">{eachData.Country}</div>
</td>
<td data-label="New Confirmed">
<div class="slds-truncate" title="">{eachData.NewConfirmed}</div>
</td>
<td data-label="Total Confirmed">
<div class="slds-truncate" title="">{eachData.TotalConfirmed}</div>
</td>
<td data-label="New Deaths">
<div class="slds-truncate" title="">{eachData.NewDeaths}</div>
</td>
<td data-label="Total Deaths" style="background-color:indianred">
<div class="slds-truncate" title="">{eachData.TotalDeaths}</div>
</td>
<td data-label="New Recovered">
<div class="slds-truncate" title="">{eachData.NewRecovered}</div>
</td>
<td data-label="Total Recovered" style="background-color:lawngreen;">
<div class="slds-truncate" title="" >{eachData.TotalRecovered}</div>
</td>
</tr>
</template>
</tbody>
</table>
</div>
</template>
<template if:false={showMobileView}>
<div class="slds-scrollable" style="height:15rem;">
<table class="slds-table slds-table_cell-buffer slds-table_bordered slds-max-medium-table_stacked-horizontal">
<thead>
<th class="" scope="col">
<div class="slds-truncate" title="Country">Country</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="New Confirmed">New Confirmed</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="Total Confirmed">Total Confirmed</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="New Deaths">New Deaths</div>
</th>
<th class="" scope="col" style="background-color:indianred">
<div class="slds-truncate" title="Total Deaths">Total Deaths</div>
</th>
<th class="" scope="col">
<div class="slds-truncate" title="New Recovered">New Recovered</div>
</th>
<th class="" scope="col" style="background-color: lawngreen;">
<div class="slds-truncate" title="Total Recovered">Total Recovered</div>
</th>
</tr>
</thead>
<tbody>
<template for:each={covid19Data} for:item="eachData">
<tr data-target-id = 'eachRow' class="slds-hint-parent" key={eachData.Country}>
<td data-label="Country">
<div class="slds-truncate" title="">{eachData.Country}</div>
</td>
<td data-label="New Confirmed">
<div class="slds-truncate" title="">{eachData.NewConfirmed}</div>
</td>
<td data-label="Total Confirmed">
<div class="slds-truncate" title="">{eachData.TotalConfirmed}</div>
</td>
<td data-label="New Deaths">
<div class="slds-truncate" title="">{eachData.NewDeaths}</div>
</td>
<td data-label="Total Deaths" style="background-color:indianred">
<div class="slds-truncate" title="">{eachData.TotalDeaths}</div>
</td>
<td data-label="New Recovered">
<div class="slds-truncate" title="">{eachData.NewRecovered}</div>
</td>
<td data-label="Total Recovered" style="background-color:lawngreen;">
<div class="slds-truncate" title="" >{eachData.TotalRecovered}</div>
</td>
</tr>
</template>
</tbody>
</table>
</div>
</template>
</lightning-layout-item>
</lightning-layout>
</div>
</lightning-card>
</template>

covid19LWC.js

import { LightningElement, track} from 'lwc';
import FORM_FACTOR from '@salesforce/client/formFactor';
import getCovid19SummaryData from '@salesforce/apex/Covid19Data.getCovid19SummaryData';

export default class Covid19LWC extends LightningElement {

@track covid19Data = [];
isData = false;
isLoading = false;
totalCases = 0;
totalDeaths = 0;
totalRecovered = 0;
showMobileView = false;

connectedCallback() {
this.isLoading = true;
this.formFactor = FORM_FACTOR;
if(this.formFactor == 'Small') this.showMobileView = true;
getCovid19SummaryData()
.then(result => {
if(result){
this.covid19Data = result;
this.isData = true;
this.isLoading = false;
for(var i=0; i<result.length; i++){
this.totalCases += result[i].TotalConfirmed;
this.totalDeaths += result[i].TotalDeaths;
this.totalRecovered += result[i].TotalRecovered;
}
}else{
this.isLoading = false;
}
})
.catch(error => {
this.isLoading = false;
});
}
}

8 comments:

UnknownMarch 30, 2020 at 9:13 PM
Can you expose this on a community page and make it public
VaibhawGuptaMarch 31, 2020 at 11:10 AM
This comment has been removed by the author.
UnknownApril 8, 2020 at 2:01 AM
I used your code and try to implement the same. When i push code from VS code to one of the scratch org the push is geeting failed as "XML parse error: Unexpected xml:" in covid19LWC.js.

can you just help me out here if I am missing any.
UnknownApril 9, 2020 at 1:44 AM
lightning__AppPage>

there was additional greater than in above syntax which was causing the error.Removing one fixed the Issue.

Thank you.
UnknownApril 11, 2020 at 8:18 AM
This comment has been removed by the author.
UnknownApril 11, 2020 at 8:25 AM
Cool, really appreciate that you are replicating this in your orgs.. Keep up the hard work :) (y)

Monday, March 30, 2020

Note: The Data is being fetched from the public API (Click here for reference).

8 comments: