NetSuite RESTlet Script to accept an invoice internal ID, render the invoice into a PDF, and return a payload that includes the invoice PDF contents.

TCI_RS_Create_Invoice_PDF.js

/**
 * @NApiVersion 2.1
 * @NScriptType Restlet
 * @NModuleScope SameAccount
 * @Author        Charles.Bastian (Technocrat Consulting Inc)
 * @Created       2022-00-00
 * @ScriptName    TCI_RS_Create_Invoice_PDF
 * @Filename      TCI_RS_Create_Invoice_PDF.js
 * @ScriptID      customscript_tci_rs_create_invoice_pdf
 * @SandBox       
 *  @FileID       
 *  @InternalURL  
 *  @DeployURL    
 *  @SearchURL    N/A
 *  @FolderURL    N/A
 * @Production    
 *  @FileID       
 *  @InternalURL  
 *  @DeployURL    
 *  @SearchURL    N/A
 *  @FolderURL    N/A
 *  
 * @modifications 
 *  Date          Author            Version       Remarks
 *  2022-09-23    Charles.Bastian   v22.9.23-1    Created for Jitterbit client SPL
 * 
 */
define(['N/record','N/render','N/runtime','N/email'],function(record,render,runtime,email){   
  function doGet(requestParams) {
    let nsID=0;
    let jsonResponsePayload={
      "error":"",
      "nsID":0,
      "pdfString":""
    };
    try{
      if(requestParams.custparamNSID!==undefined){
        log.debug('in doGet',JSON.stringify(requestParams.custparamNSID));
        nsID=requestParams.custparamNSID;
        if(nsID.length>0){
          var pdfString='';
          var pdfInvPrint=render.transaction({entityId:parseInt(nsID),printMode:render.PrintMode.PDF});
          var pdfContent=pdfInvPrint.getContents();
          pdfString=pdfContent;
          log.debug('buildPDF.pdfString',JSON.stringify(pdfString));
          
          jsonResponsePayload={
            "error":"",
            "nsID":nsID,
            "pdfString":pdfString
          };
        }else{
          jsonResponsePayload={
            "error":"No invoice internal ID value received.",
            "nsID":nsID,
            "pdfString":""
          };
        }
      }else{
        jsonResponsePayload={
          "error":"No invoice internal ID parameter (custparamNSID) received.",
          "nsID":nsID,
          "pdfString":""
        };
      }
    }catch(err01){
      log.error('doGet.err01',err01);
      jsonResponsePayload={
        "error":err01.message,
        "nsID":nsID,
        "pdfString":""
      };
      handleErrorAndSendNotification(err01,'doGet');
    }finally{
      return JSON.stringify(jsonResponsePayload);
    }
  }
  
    /***************************/
  /***** ERROR FUNCTIONS *****/
  /***************************/
  
  function handleErrorAndSendNotification(e,stage){
    log.error('Stage: '+stage+' failed',e);
    var author=-5;
    var recipients='email@domain.com';
    var subject='Map/Reduce script '+runtime.getCurrentScript().id+' failed for stage: '+stage;
    var body='An error occurred with the following information:\n'+'Error code: '+e.name+'\n'+'Error msg: '+e.message;
    
    try{
      email.send({
        author:author,
        recipients:recipients,
        subject:subject,
        body:body
      });
    }catch(err01){
      log.error('handleErrorAndSendNotification.err01',JSON.stringify(err01));
    }
  }
  
  /*******************************/
  /***** END ERROR FUNCTIONS *****/
  /*******************************/
  
  return{
    'get':doGet
  };
});