jimishio / couchdb-to-mongodb Goto Github PK

@jimishio I tried running the shell file directly and it keeps throwing error.

I used a newer npm package cloudant couchbackup instead of the deprecated couchbackup on the readme file.

The error I received was

2018-09-25T14:51:37.569+0700	Failed: error processing document #2: invalid character '{' in literal new or null (expecting 'e' or 'u')

The solution I propose is by changing the mongoimport command within the shell file to:

master_script.sh

#./master_script.sh collection_name mongo_db_name mongo_username mongo_password mongo_host mongo_port
couchbackup --db $1 > 1.json
# ./couch_to_mongo.sh 1.json
mongoimport --host $5 --port $6 --db $2 -u $3 -p $4 --collection $1 --drop --file 1.json --jsonArray --type json
rm *.json

and

master_script_without_pwd.sh

# ./master_script_without_pwd.sh collection_name mongo_db_name mongo_host mongo_port
couchbackup --db $1 > 1.json
# ./couch_to_mongo.sh 1.json
mongoimport --host $3 --port $4 --db $2 --collection $1 --drop --file 1.json --jsonArray --type json
rm *.json

Because we are passing the --jsonArray flag, there is no need to change the [,], and },{ strings with the sed command.

Running @cloudant/couchbackup returns a list of revisions in the document if you run it without --mode shallow. The old couchbackup npm package has been deprecated.

As IBM Cloudant is also based on CouchDB, how IBM cloudant databases can be transferred to different collections of a single database or multiple databases.
Cloudant only gives maximum 200 documents per query.