1. module base64-img
   1. function base64-img.base64 (filename, callback)
   2. function base64-img.base64Sync (filename)
   3. function base64-img.img (data, destpath, name, callback)
   4. function base64-img.imgSync (data, destpath, name)
   5. function base64-img.requestBase64 (url, callback)

module base64-img

function base64-img.base64 (filename, callback)

• description and source-code

  base64 = function (filename, callback) {
    if (!callback) callback = util.noop;
  
    fs.readFile(filename, function(err, data) {
      if (err) return callback(err);
  
      callback(null, base64(filename, data));
    });
  }

• example usage

  ...
  npm install base64-img --save
  ```
  ## test
  ```
  mocha
  ```
  ## API
  ### .base64(filename, callback)
  Convert image file to image base64 data
  * {string} ``filename`` required
  The image path
  * {function} ``callback(err, data)`` required
  Callback with image base64 data
  ```js
  base64Img.base64('path/demo.png', function(err, data) {})
  ...

function base64-img.base64Sync (filename)

• description and source-code

  base64Sync = function (filename) {
    var data = fs.readFileSync(filename);
  
    return base64(filename, data);
  }

• example usage

  ...
  The image path
  * {function} ``callback(err, data)`` required
  Callback with image base64 data
  ```js
  base64Img.base64('path/demo.png', function(err, data) {})
  ```
  
  ### .base64Sync(filename)
  The api same as base64, but it's synchronous
  ```js
  var data = base64Img.base64Sync('path/demo.png');
  ```
  
  ### .requestBase64(url, callback)
  * {string} ``url`` required
  ...

function base64-img.img (data, destpath, name, callback)

• description and source-code

  img = function (data, destpath, name, callback) {
    var result = img(data);
    var filepath = path.join(destpath, name + result.extname);
  
    fs.writeFile(filepath, result.base64, { encoding: 'base64' }, function(err) {
      callback(err, filepath);
    });
  }

• example usage

  ...
  ```js
  var url = 'http://../demo.png';
  base64Img.requestBase64(url, function(err, res, body) {
  
  });
  ```
  
  ### .img(data, destpath, name, callback)
  Convert image base64 data to image
  * {string} ``data`` required
  Image base64 data
  * {string} ``destpath`` required
  Dest path, if the destpath is root, pass empty string
  * {string} ``name`` required
  The image's filename
  ...

function base64-img.imgSync (data, destpath, name)

• description and source-code

  imgSync = function (data, destpath, name) {
    var result = img(data);
    var filepath = path.join(destpath, name + result.extname);
  
    fs.writeFileSync(filepath, result.base64, { encoding: 'base64' });
    return filepath;
  }

• example usage

  ...
  * {string} ``name`` required
  The image's filename
  * {function} ``callback(err, filepath)`` required
  ```js
  base64Img.img('data:image/png;base64,...', 'dest', '1', function(err, filepath) {});
  ```
  
  ### .imgSync(data, destpath, name)
  The api same as img, but it's synchronous
  ```js
  var filepath = base64Img.imgSync('data:image/png;base64,...', '', '2');
  ```
  ...

function base64-img.requestBase64 (url, callback)

• description and source-code

  requestBase64 = function (url, callback) {
    request({
      url: url,
      isBuffer: true
    }, function (err, res, body) {
      if (err) return callback(err);
  
      var data = 'data:' + res.headers['content-type'] + ';base64,' + body.toString('base64');
      callback(err, res, data);
    });
  }

• example usage

  ...
  
  ### .base64Sync(filename)
  The api same as base64, but it's synchronous
  ```js
  var data = base64Img.base64Sync('path/demo.png');
  ```
  
  ### .requestBase64(url, callback)
  * {string} ``url`` required
  * {function} ``callback(err, res, body)`` required
  Callback with http request
  ```js
  var url = 'http://../demo.png';
  base64Img.requestBase64(url, function(err, res, body) {
  ...