Want to see what queries are being run against your Mongo instance? Run this binary to enable verbose Mongo logs on the database in question, then immediately start tailing the logs. Example output:

2017-08-29T11:45:41-07:00 "" 127.0.0.1 QUERY invites {"$and":[{"inviteeEmail":"[email protected]"},{"$or":[{"status":1},{"status":2}]}]}
2017-08-29T11:45:41-07:00 "" 127.0.0.1 result: time:0s returned:1
2017-08-29T13:03:52-07:00 "" 127.0.0.1 REMOVE locks {"ownerId":"81fcaadb-5c26-4863-8a11-dca0b70bbf79"}
2017-08-29T13:03:52-07:00 "" 127.0.0.1 result: time:0s deleted:0

Note: This tool works by setting the database's profiling level to 2, which logs data about every query to the database's system.profile collection. We then stream the data. Be careful about running this in production, since this will slow down your database and may log sensitive data to the system profile.

The database syntax uses the same syntax as the mongo shell client. To tail the accounts database on the local machine:

read-mongo-logs accounts

Or on the foo database on host 192.168.0.5, port 9999:

read-mongo-logs 192.168.0.5:9999/foo

If you enabled query logs and you want to disable them, use the --disable flag.

read-mongo-logs --disable 192.168.0.5:9999/foo

Find your target operating system (darwin, windows, linux) and desired bin directory, and modify the command below as appropriate:

curl --silent --location https://github.com/kevinburke/read-mongo-logs/releases/download/0.4/read-mongo-logs-linux-amd64 > /usr/local/bin/read-mongo-logs && chmod 755 /usr/local/bin/read-mongo-logs

On Travis, you may want to create $HOME/bin and write to that, since /usr/local/bin isn't writable with their container-based infrastructure.

The latest version is 0.4.

If you have a Go development environment, you can also install via source code:

go get -u github.com/kevinburke/read-mongo-logs