sudo composer install vs. composer install

I run sudo composer install I got this warning

Do not run Composer as root/super user! See http://ift.tt/1UioBPp for details

I tried just composer install I got this error

[ErrorException] file_put_contents(/Applications/MAMP/htdocs/code/bheng/vendor/composer/installed.json): faile d to open stream: Permission denied

Here is the current permission set on my Laravel folder

total 1872
-rw-r--r--   1 bheng  staff     777 Feb 27 20:18 phpunit.xml
-rw-r--r--   1 bheng  staff      87 Feb 27 20:18 phpspec.yml
-rw-r--r--   1 bheng  staff     481 Feb 27 20:18 package.json
drwxr-xr-x   3 bheng  staff     102 Feb 27 20:18 note
-rw-r--r--   1 bheng  staff     967 Feb 27 20:18 md-bheng-readme.txt
-rw-r--r--   1 bheng  staff     503 Feb 27 20:18 gulpfile.js
-rw-r--r--   1 bheng  staff      26 Feb 27 20:18 contributors.txt
-rw-r--r--   1 bheng  staff    1635 Feb 27 20:18 artisan
-rw-r--r--   1 bheng  staff      43 Feb 27 20:18 Procfile
-rw-r--r--   1 bheng  staff    5634 Feb 27 20:18 Gruntfile.js
drwxr-xr-x   4 bheng  staff     136 Feb 27 20:18 tests
drwxr-xr-x   5 bheng  staff     170 Feb 27 20:18 storage
drwxr-xr-x   4 bheng  staff     136 Feb 27 20:18 sql
-rw-r--r--   1 bheng  staff     560 Feb 27 20:18 server.php
drwxr-xr-x   5 bheng  staff     170 Feb 27 20:18 resources
-rw-r--r--   1 bheng  staff     105 Feb 27 20:18 pull.sh
drwxr-xr-x   7 bheng  staff     238 Mar  1 14:46 bootstrap
-rw-r--r--@  1 bheng  staff       0 Mar  1 14:46 Icon?
drwxr-xr-x  22 bheng  staff     748 Mar  2 11:47 app
drwxrwxrwx@ 27 bheng  staff     918 Mar  3 14:55 public
drwxr-xr-x   8 bheng  staff     272 Mar  6 13:25 database
-rw-------@  1 bheng  staff     405 Mar 14 09:29 id_rsa.pub
-rw-------   1 bheng  staff    1766 Mar 14 09:29 id_rsa
-rw-r--r--   1 bheng  staff  126713 Mar 14 10:00 composer.lock
drwxr-xr-x  18 bheng  staff     612 Mar 28 21:24 config
-rw-r--r--   1 bheng  staff    1022 Mar 30 12:21 composer.json
drwxr-xr-x  32 bheng  staff    1088 Mar 30 12:21 vendor

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How do I fix this ? Do I need to chmod any folders ?

via Chebli Mohamed