node.js - Node js Cannot POST /usuarios -

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i have these files , when try send data through form have cannot post /usuarios

app.js

var express = require("express"); var router=express.router(); var bodyparser  = require("body-parser"); var aplicacion = express(); var path = require('path'); var index=require("./routes/index"); var usuarios=require("./routes/users"); aplicacion.set('views', path.join(__dirname, 'views')); aplicacion.set('view engine', 'ejs'); aplicacion.use(bodyparser.json());  aplicacion.use(router);   aplicacion.use(index); aplicacion.use(usuarios); aplicacion.listen(5000, function() {  console.log("servidor iniciado"); });

routes/users.js

var express = require('express'); var router = express.router(); var usuariosmodel = require('../models/usuarios'); router.post('/usuarios', function(request, response) {      usuariosmodel.getusuarios(function(error, data)     {           response.status(200).json(data);     }); }); module.exports = router;


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