documentdb.txt

Create repository file
echo -e "[mongodb-org-4.0] \nname=MongoDB Repository\nbaseurl=https://repo.mongodb.org/yum/amazon/2013.03/mongodb-org/4.0/x86_64/\ngpgcheck=1 \nenabled=1 \ngpgkey=https://www.mongodb.org/static/pgp/server-4.0.asc" | sudo tee /etc/yum.repos.d/mongodb-org-4.0.repo

Install Mongo Shell
sudo yum install -y mongodb-org-shell

Downloads the CA Certificate for Amazon DocumentDB
wget https://s3.amazonaws.com/rds-downloads/rds-combined-ca-bundle.pem


Insert a document
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db.posts.insertOne(
{
	"title" : "first post title",
	"body" : "first post body" ,
	"category" : "uncategorized"
}) 
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Query 
----------------------------------------------------------------------------
db.posts.find( 
	{ 
		"title" : "first post title"
	}
)
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Insert Many
----------------------------------------------------------------------------
db.posts.insertMany(
[
	{ _id : "post-1" , "title" : "first post title",  "body" : "first post body",   	"author" : "author1"},
	{ _id : "post-2" , "title" : "second post title", "body" : "second post body" , 	"author" : "author2"}
])
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Transaction
----------------------------------------------------------------------------
var dbSession = db.getMongo().startSession();
var dbSessionObject = dbSession.getDatabase('Blog').getCollection('posts');
dbSession.startTransaction(
	{	readConcern: {level: 'snapshot'}, 
		writeConcern: {w: 'majority'}	});

dbSessionObject.updateOne({"_id": "post-1"}, { $set : {author: "author1"}});
dbSessionObject.updateOne({"_id": "post-2"}, { $set:  {author: "author2"}});
dbSession.commitTransaction()
dbSession.endSession()
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