How can I insert a document from a bash script to mongodb? - bash

Question

What is the exact code I need to execute, to insert a document into a mongodb using bash. At the moment I am able to look documents in mongodb via bash script up, but inserting does not work.

Answer 1

You can inject javascript code from a javascript file:
mongo 127.0.0.1/MyDatabase script.js
with script.js:
var document = {
name : "document_name",
title : "document_title"
};
db.MyCollection.insert(document);
or directly:
mongo 127.0.0.1/MyDatabase --eval 'var document = { name : "document_name", title : "document_title" }; db.MyCollection.insert(document);'

Answer 2

If you don't want to serve script from a file (I try not to source external files as much as possible) or not use --eval option which can be difficult to read if you have many entries, you can use a bash heredoc
You can type in terminal:
-bash-4.1$ mongo mongodb://myServerAddress/myDbName <<EOF
> db.myCollectionName.insert({
> name: "doc name",
> title: "doc title"
> })
> EOF
Result:
MongoDB shell version v3.4.1
connecting to: mongodb://myServerAddress/myDbName
MongoDB server version: 3.0.7
WARNING: shell and server versions do not match
WriteResult({ "nInserted" : 1 })
bye
-bash-4.1$
If you want to keep it in a script, just remove > which is actually prompt for a multiline command.
For in-script use, it should be as below:
#!/usr/bin/env bash
mongo mongodb://myServerAddress/myDbName <<EOF
db.myCollectionName.insert({
name: "doc name",
title: "doc title"
})
EOF

Answer 3

insert some JSON into Mongo DB sample_db, collection products_coll
echo '{ item: "card", qty: 115 }' | \
sed 's#^#db.products_coll.insert( #; s#$# ) #' | mongo sample_db
MongoDB shell version v3.6.3
connecting to: mongodb://127.0.0.1:27017/sample_db
MongoDB server version: 3.6.3
WriteResult({ "nInserted" : 1 })
bye
make sure it is here
mongoexport -d sample_db -c products_coll
{"_id":{"$oid":"5d27e83152a049227799710e"},"item":"card","qty":115.0}