Get Session APIs in Lightning Component Salesforce

Kapil May 01, 2021

In this blog I will share the complete code of a workaround through which you will be able to get API parameters in Lightning Component.

It's just 3 simple steps :

1. Create Visualforce Page and print API parameters with some prefix like start and end text in it.

2. Create a Utility class to get the text from VF page and separate the value based on the start and end prefix.

3. Create the lightning component and get the API value by passing the VF page name in utility class.

Visualforce Page

<apex:page >
    Start_of_SessionId{!$Api.Session_ID}End_of_SessionId
    Start_of_URL{!$Api.Partner_Server_URL_160}End_of_URL
</apex:page>

Lightning Component

<aura:component controller="SendAPIParametersCtrl" implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" >
    <aura:attribute name="sessionId" type="String" />
    <aura:attribute name="partnerUrl" type="String" />
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
    Session ID : {!v.sessionId}
    URL : {!v.partnerUrl}
</aura:component>

Controller

({
	doInit : function(component, event, helper) {
		console.log('###I am in component');
        var action = component.get("c.fetchAPIVar");
        action.setCallback(this,function(response){
            var state = response.getState();
            if(state == "SUCCESS"){
                var result=response.getReturnValue();
                component.set("v.sessionId",result[0]);
                component.set("v.partnerUrl",result[1]);
                console.log('###SessionID : '+result[0]);
                console.log('###URL : '+result[1]);
            }
        });
        $A.enqueueAction(action);
	}
})

Apex Controller

public class SendAPIParametersCtrl {
    @AuraEnabled
    public static List<String> fetchAPIVar(){
        PageReference apiPage = Page.SendAPIParametersVF;
        List<String> apiList = Utility.getAPIVarFromVF(apiPage);
        return apiList;
    }
}

Utility Class

global class Utility {
    global static List<String> getAPIVarFromVF(PageReference vfPage){
        List<String> apiList = new List<String>();
        String content=vfPage.getContent().toString();
        Integer s=content.indexOf('Start_of_SessionId')+'Start_of_SessionId'.length(),
            e=content.indexOf('End_of_SessionId');
        apiList.add(content.substring(s,e));
        s=content.indexOf('Start_of_URL')+'Start_of_URL'.length();
        e=content.indexOf('End_of_URL');
        apiList.add(content.substring(s,e));
        return apiList;
    }
}