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This is a sample Facebook App using Node.js and MongoDB

Overview

There will be one node js module to represent the mongoDB collection, named model_(collection_name).js
Many-to-many relationships are represented by linking documents, named (a)_(b)_links
All node js modules that start with req_*.js are request handler that get requested from router.js
All ajax requests will go through req_op.js, that verifies the user logged-in to Facebook and app_version is current. Every req_op.js request must contains Facebook access_token and app_version. If the user is not logged-in to Facebook, req_op.js returns the following JSON document, {login:true}, if the version is not current, then req_op.js return the following JSON document, {ver:true}
There will be one node js module to handle ajax request from client, named op_(request).js
talk req_mem.js
talk req_counter.js

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
etc		etc
public_root		public_root
public_ver		public_ver
.gitignore		.gitignore
.slugignore		.slugignore
Procfile		Procfile
README.md		README.md
app.html		app.html
app_ajax.js		app_ajax.js
app_http.js		app_http.js
fb.js		fb.js
issuer.html		issuer.html
logger.js		logger.js
main.js		main.js
model.js		model.js
model_badge.js		model_badge.js
model_group.js		model_group.js
model_group_admin.js		model_group_admin.js
model_group_badge.js		model_group_badge.js
model_group_member.js		model_group_member.js
model_user.js		model_user.js
model_user_badge.js		model_user_badge.js
op_assign_badge.js		op_assign_badge.js
op_join_group.js		op_join_group.js
op_read_any_groups.js		op_read_any_groups.js
op_read_badge_members.js		op_read_badge_members.js
op_read_badges_by_group.js		op_read_badges_by_group.js
op_read_groups_by_admin.js		op_read_groups_by_admin.js
op_read_members_by_group.js		op_read_members_by_group.js
op_read_my_badges.js		op_read_my_badges.js
op_save_badge.js		op_save_badge.js
op_save_group.js		op_save_group.js
package.json		package.json
req_app.js		req_app.js
req_counters.js		req_counters.js
req_file.js		req_file.js
req_issuer.js		req_issuer.js
req_mem.js		req_mem.js
req_op.js		req_op.js
req_root.js		req_root.js
req_save_user.js		req_save_user.js
router.js		router.js