Call Public class method from onclick javascript [duplicate]

Question

I have a public emailing apex class I need to call that from onclick javascript button of a detail page. Can someone let me know , if I can do that? Please give me an example. I am not getting it.

I have a global webservice method that receives List of an Sobject record.

Apex webservice method

webservice static void sendMails(List<Form_Requests_abv__c> newrequests)
    {
        Set<Id> formIds = new Set<Id>();
        for (Form_Requests_abv__c  fr : newrequests) 
        {  
            formIds.add(fr.id);
        }

        List<String> sendtoemail = new List<String>();        

        List<ABV_Form_Request_abv__c>  Useremails= ABV_Form_Request_abv__c.getAll().values();
        if(!Useremails.isEmpty()){
           for(ABV_Form_Request_abv__c Useremail : Useremails)
           {
               if(String.isnotBlank(Useremail.Email_abv__c)){
...............

How can I pass value there?

My javascript code

var leadIds = {!GETRECORDIDS($ObjectType.Form_Requests_abv__c)}; 
sforce.apex.execute("MailerUtils","sendMails",{newrequests: leadIds});
window.location.reload();

Answer 1

The input to the webservice is passed as a serialized JSON string.

You need to accept a string as input to the webservice method and deserialize it in the method.

So the definition of the webservice would be:

webservice static void sendMails(String newrequests){

To get the list, you would do this:

List<Form_Requests_abv__c> = (List<Form_Requests_abv__c>)JSON.deserialize(newrequests,List<Form_Requests_abv__c>.class);

The rest of your method can then be used as-is.

Answer 2

As outlined here, your class and methods should be global and webservice.