Salesforce Integration with Plivo using Rest Api

Visualforce Page:

<apex:page controller="PilvoCntrl" tabStyle="Account">
    <apex:form id="frm">
        <apex:outputText value="{!error}" style="color:green;font-weight:50px"/> 
        <apex:pageBlock title="Call From Plivo">
            <apex:pageBlockSection collapsible="false" columns="2" title="Call Information">
                 <apex:commandButton value="Call" action="{!callPlivo}" reRender="frm"/>
            </apex:pageBlockSection>
       </apex:pageBlock>
    </apex:form>  
</apex:page>



Apex Controller:


public class PilvoCntrl{
  
    public String error{get;set;}
    public PilvoCntrl(){}
    
    public void callPlivo() {

        String auth_id = 'Your Authentication id';
        String auth_token = 'Your Authentication Token';
        
        HttpRequest req = new HttpRequest();
        
        String jsonString = '{"from": 9185599*****,"to": 919784******,    "answer_url":"https://yourdomain-developer-edition.ap5.force.com/newCall"}';
        
        req.setHeader('Authorization', 'Basic '+ EncodingUtil.base64Encode(Blob.valueOf(auth_id + ':' +auth_token )));
        req.setHeader('Content-Type','application/json');
        req.setEndpoint('https://api.plivo.com/v1/Account/'+auth_id+'/Call/');
        req.setMethod('POST');
        req.setBody(jsonString);
        HttpResponse res = new Http().send(req);
        
        if (res.getStatusCode() >= 200 && res.getStatusCode() < 300) {
                error = 'Call Send Successfully....!!';
                String response = res.getBody();
        }
        
        else{
            String response = res.getBody();
            error = 'Call Could not be completed '+response;
        }
      
    }

}




Note:

- This is the demo integration code of plivo from salesforce.
- You don't need to buy number from plivo for this code snippet but it should be verified from plivo
- In trail account phone numbers should be verified from plivo.
- You can get your auth_id and auth_token on your plivo dashboard
   
- you need to host the plivo xml for call redirect. It is good to use the salesforce site to host 
  that xml
  here in code :  https://yourdomain-developer-edition.ap5.force.com/newCall



Create new page newCall and copy paste the xml :


<apex:page showHeader="false" contentType="text/xml">
    <Response>
        <Dial >
            <Number>918559******
        </Dial>
    </Response>  
</apex:page>







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