# Integrator Methods for querying and generating SUNAT Electronic Invoices. ## NGR endpoint - [GET /integrator/ngr/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/ngr.md) ## CDR endpoint - [GET /integrator/cdr/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/cdr.md): This method queries the receipt confirmation of processed electronic invoices. ## PDF endpoint - [GET /integrator/pdf/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/pdf.md): This method queries the printed representation (PDF) of processed electronic invoices. ## XML endpoint - [GET /integrator/xml/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/xml.md): This method queries the XML of processed electronic invoices. ## Cancel endpoint - [GET /integrator/cancel/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/cancel.md): This method queries the status of receipts submitted for cancellation. ## SendMessage endpoint - [POST /integrator/sendMessage](https://onapi.redocly.app/apis/integrator/sendmessage.md): This method sends electronic receipts for processing in SUNAT. ## StoreXML endpoint - [POST /integrator/storeXml](https://onapi.redocly.app/apis/integrator/storexml.md): This method stores the trama XML and CDR. ## Retrieve pdf link - [GET /integrator/url/pdf/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/urlpdf.md): This method retrieves the url to download the invoice in pdf format. ## Retrieve xml link - [GET /integrator/url/xml/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/urlxml.md): This method retrieves the url to download the invoice in xml format. ## Retrieve cdr link - [GET /integrator/url/cdr/{ruc}/{doctype}/{serie}/{number}](https://onapi.redocly.app/apis/integrator/urlcdr.md): This method retrieves the url to download the invoice cdr in xml format.