An example of usage on swagger-jack, to validate against uploaded files

app.js

// To test with it, run with `curl`
// curl -F "photo=@/path/to/your/photo" localhost:3000/api/uploads
var express = require('express');
var swagger = require('swagger-jack');

var app = express();
app.use(express.logger('dev'))
  .use(express.bodyParser())
  .use(express.methodOverride())
  .use(swagger.generator(app, {
    "apiVersion": "2.0",
    "swaggerVersion": "1.3",
    basePath: 'http://localhost:3000/api',
  }, [{
    api: {
      "resourcePath": "/uploads",
      "apis": [{
        "path": "/uploads",
        "operations": [{
          "httpMethod": "POST",
          "nickname": "returnBody",
          "summary": "Upload a file",
          "responseClass": "void",
          "parameters": [
            {
              "name": "photo",
              "description": "A photo to upload",
              "dataType": "file",
              "required": true,
              "allowMultiple": false,
              "paramType": "body"
            }
          ]
        }, {
          "httpMethod": "GET",
          "nickname": "passed",
          "summary": "simple test",
          "responseClass": "void"
        }]
      }, ]
    },
    controller: {
      passed: function(req, res) {
        res.json({
          status: 'passed'
        });
      },
      returnParams: function(req, res) {
        res.json(req.input);
      },
      returnBody: function(req, res) {
        res.json({
          body: req.body
        });
      },
    }
  }]))
  .use(swagger.validator(app))
  .use(swagger.errorHandler());

var port = process.env.PORT || 3000;
app.listen(port, function() {
  console.log('Listening on port', port);
});