nodejs actionhero下载图片文件的麻烦

Question

I'm building simple image file upload/download server and I'm following this wiki page . In this part I'm passing the xpath parameter which is the file name and it all works fine for text files but I'm getting 404 when trying the same for images.

  renderFile: function(api, connection, next){
    // do any pre-rendering etc here
    connection.rawConnection.responseHttpCode = 200;
    connection.sendFile(connection.params.xpath);
    next(connection, false);
  },

  run: function(api, connection, next){
    var self = this;
    if(connection.params.xpath == null){
      self.render404(api, connection, next);
    }else {
      var file = api.config.general.paths.public + '/' + connection.params.xpath
      console.log(file);
      fs.exists(file, function(found){
        if(found){
          self.renderFile(api, connection, next);
        }else {
          self.render404(api, connection, next);
        }
      });
    }
  }

is there any settings or config I missed?

Answer 1

Everything seems OK to me. In a blank actionhero project, I can use the action below, and requests like http://localhost:8080/api/file?xpath=logo/actionhero.png work as expected

var fs = require('fs');

exports.action = {
  name:                   'file',
  description:            'file',
  blockedConnectionTypes: [],
  outputExample:          {},
  matchExtensionMimeType: false,
  version:                1.0,
  toDocument:             true,

  inputs: {
    required: [],
    optional: ['xpath'],
  },

  render404: function(api, connection, next){
    connection.rawConnection.responseHttpCode = 404;
    connection.sendFile('404.html');
    next(connection, false);
  },

  renderFile: function(api, connection, next){
    connection.rawConnection.responseHttpCode = 200;
    connection.sendFile(connection.params.xpath);
    next(connection, false);
  },

  run: function(api, connection, next){
    var self = this;
    if(connection.params.xpath == null){
      self.render404(api, connection, next);
    }else {
      fs.exists(file, function(found){
        if(found){
          self.renderFile(api, connection, next);
        }else {
          self.render404(api, connection, next);
        }
      });
    }
  }
};