Force.com REST Endpoint

ForceRESTEndpoint.cls

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//Author: Lee Hildebrand (http://leehildebrand.name)
//Date: 6/2/15
//Purpose: Provide APEXREST endpoint that allows for insert / update of Registered_User__c records
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@RestResource(urlMapping='/v.1/RegisteredUsersService/*')
global with sharing class RegisteredUsersService{
  global class user_to_register {
    Global String active;
    Global String birth_year;
    Global String credentials;
    Global String current_login_at;
    Global String email;
    Global String employer;
    Global String first_name;
    Global String last_login_at;
    Global String last_name;
    Global String last_request_at;
    Global String login_count;
    Global String occupation;
    Global String role;
    Global String specialty_info;
    Global String stringfield;
    Global String treatment_facility;
    Global String id;
  }

  @HttpPost
  global static ReturnClass register_users(user_to_register[] registered_users) {
    try {
      Registered_User__c[] parsed_users = new Registered_User__c[]{};
      for (user_to_register u : registered_users){
        String name = u.first_name+' '+u.last_name;
        parsed_users.add(new Registered_User__c(  Name = name.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('Name').getDescribe().getLength()-3),
                              active__c = !String.isBlank(u.active) ? u.active.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('active__c').getDescribe().getLength()-3) : '',
                              birth_year__c = !String.isBlank(u.birth_year) ? Integer.ValueOf(u.birth_year) : null,
                              credentials__c = !String.isBlank(u.credentials) ? u.credentials.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('credentials__c').getDescribe().getLength()-3) : '',
                              current_login_at__c = !String.isBlank(u.current_login_at) ? Datetime.valueOf(u.current_login_at.replace('T',' ')) : null,
                              email__c = u.email,
                              employer__c = !String.isBlank(u.employer) ? u.employer.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('employer__c').getDescribe().getLength()-3) : '',
                              first_name__c = !String.isBlank(u.first_name) ? u.first_name.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('first_name__c').getDescribe().getLength()-3) : '',
                              last_login_at__c = !String.isBlank(u.last_login_at) ? Datetime.valueOf(u.last_login_at.replace('T',' ')) : null,
                              last_name__c = !String.isBlank(u.last_name) ? u.last_name.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('last_name__c').getDescribe().getLength()-3) : '',
                              last_request_at__c = !String.isBlank(u.last_request_at) ? Datetime.valueOf(u.last_request_at.replace('T',' ')) : null,
                              login_count__c = !String.isBlank(u.login_count) ? Integer.ValueOf(u.login_count) : null,
                              occupation__c = !String.isBlank(u.occupation) ? u.occupation.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('occupation__c').getDescribe().getLength()-3) : '',
                              role__c = !String.isBlank(u.role) ? Integer.ValueOf(u.role) : null,
                              specialty_info__c = !String.isBlank(u.specialty_info) ? u.specialty_info.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('specialty_info__c').getDescribe().getLength()-3) : '',
                              string__c = !String.isBlank(u.stringfield) ? u.stringfield.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('string__c').getDescribe().getLength()-3) : '',
                              treatment_facility__c = !String.isBlank(u.treatment_facility) ? u.treatment_facility.abbreviate(Schema.SObjectType.Registered_User__c.fields.getMap().get('treatment_facility__c').getDescribe().getLength()-3) : '',
                              user_id__c = !String.isBlank(u.id) ? Integer.ValueOf(u.id) : null));
      }
      Registered_User__c[] existing_users = new Registered_User__c[]{};
      for(Registered_User__c ru : Database.query('SELECT user_id__c FROM Registered_User__c')){
        existing_users.add(ru);
          }
      Registered_User__c[] users_to_upsert = new Registered_User__c[]{};
      if(existing_users.isEmpty()) users_to_upsert.addAll(parsed_users);
      else{
        for(Registered_User__c pu : parsed_users){
          Registered_User__c user = pu;
          for(Registered_User__c ru : existing_users)
            if(user.user_id__c == ru.user_id__c)
              user.Id=ru.Id;
          users_to_upsert.add(user);
        }
      }
      if(!users_to_upsert.isEmpty()) upsert users_to_upsert;
        return new ReturnClass('true', 'Users registered.', users_to_upsert);
      } catch (Exception e) {
        return new ReturnClass('false', e.getMessage(), null);
      }
  }

  global class ReturnClass {
      global String success;
      global String message;
      global Registered_User__c[] records;

      global ReturnClass(String success, String message, Registered_User__c[] records) {
          this.success = success;
          this.message = message;
          this.records = records;
      }
    }  
}