download an invoice's pdf through rest api

AI generated answer (using internal Slack threads):

Based on the conversations, it appears that downloading an invoice's PDF directly through REST API is not supported in NetSuite. However, there are a few workarounds you can consider: 1. Using SuiteScript and N/render module: You can use SuiteScript along with the N/render module to generate the PDF of the invoice. Once the PDF is generated, you can save it in the file cabinet for later retrieval, or write it to the response of a Suitelet or Restlet. Here is a reference to the N/render module: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4412042824.html 2. Using SOAP Web Services: You can download the file using the 'get' operation from the SOAP web services. Here is a reference to the 'get' operation: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_N3488543.html 3. Using Email Functionality: You can use the built-in email functionality in NetSuite to email the transactions. Please note that Suitelets and Restlets have their own limitations. Suitelets are public URLs that aren't authenticated, and with Restlets, you will be forced to write base 64 contents. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******