How to export all collections in MongoDB?

Question

I want to export all collections in MongoDB by the command:

mongoexport -d dbname -o Mongo.json

The result is:
No collection specifie

Answer 1

I found after trying lots of convoluted examples that very simple approach worked for me.

I just wanted to take a dump of a db from local and import it on a remote instance:

on the local machine:

mongodump -d databasename

then I scp'd my dump to my server machine:

scp -r dump user@xx.xxx.xxx.xxx:~

then from the parent dir of the dump simply:

mongorestore 

and that imported the database.

assuming mongodb service is running of course.

Answer 2

Even in mongo version 4 there is no way to export all collections at once. Export the specified collection to the specified output file from a local MongoDB instance running on port 27017 you can do with the following command:

.\mongoexport.exe --db=xstaging --collection=products --out=c:/xstaging.products.json

Answer 3

you can create zip file by using following command .It will create zip file of database {dbname} provided.You can later import the following zip file in you mongo DB.

Window filepath=C:\Users\Username\mongo 

mongodump --archive={filepath}\+{filename}.gz --gzip --db {dbname}

Answer 4

There are multiple options depending on what you want to do

1) If you want to export your database to another mongo database, you should use mongodump. This creates a folder of BSON files which have metadata that JSON wouldn't have.

mongodump
mongorestore --host mongodb1.example.net --port 37017 dump/

2) If you want to export your database into JSON you can use mongoexport except you have to do it one collection at a time (this is by design). However I think it's easiest to export the entire database with mongodump and then convert to JSON.

# -d is a valid option for both mongorestore and mongodump

mongodump -d <DATABASE_NAME>
for file in dump/*/*.bson; do bsondump $file > $file.json; done

Answer 5

I wrote bash script for that. Just run it with 2 parameters (database name, dir to store files).

#!/bin/bash

if [ ! $1 ]; then
        echo " Example of use: $0 database_name [dir_to_store]"
        exit 1
fi
db=$1
out_dir=$2
if [ ! $out_dir ]; then
        out_dir="./"
else
        mkdir -p $out_dir
fi

tmp_file="fadlfhsdofheinwvw.js"
echo "print('_ ' + db.getCollectionNames())" > $tmp_file
cols=`mongo $db $tmp_file | grep '_' | awk '{print $2}' | tr ',' ' '`
for c in $cols
do
    mongoexport -d $db -c $c -o "$out_dir/exp_${db}_${c}.json"
done
rm $tmp_file

Answer 6

For dump, your DB fallow the below CMD

   mongodump -d <your d name> -o <dump path>
Ex:mongodump -d qualetics -o D:\dbpackup\qualetics