Servidor REST para emissão de nota fiscal eletrônica

Abstract

Several business operations have been made with the help of software, such as systems of Enterprise Resource Planning, systems of support for decision-making, and systems to make simulations, scientific simulations (for example, tests of drugs) or business simulations (such as, projection of investments). These software can prove an automation more profitable to the business. Ecommerce is a proof of this. When items that can be digital such as music and books are marketed, the operations performed can be purely digital: the offer of the products, the purchase, the payment and the delivery of the product. Other operations that involve the physical transaction of goods can benefited from software systems, besides the managerial control. This additional is the issuance of electronic invoices for tracking merchandise, including shipping. With this procedure the company emits an electronic file containing the tax information of the commercial operation. This file, the Nota Fiscal Eletrônica (NF-e), is signed by means of a digital certificate, ensuring the integrity of the data and the authorship of the owner. The NF-e is then transmitted to the Secretaria da Fazenda of the taxpayer's jurisdiction and from it the electronic authorization for the transit of the respective merchandise is carried out. In order to generate the file of the NF-e, through this work a REST server was implemented to generate this type of note. The Java language was the main technology used to implement the application.