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node.jsdatabasemongodbloopbackjsloopback4

Top-level use of w, wtimeout, j, and fsync is deprecated. Use writeConcern instead


I am using mongodb with loopback and on successful connection I am getting below warning

Top-level use of w, wtimeout, j, and fsync is deprecated. Use writeConcern instead.

loopback version: 5.5.0

How to get rid of this? Kindly help


Solution

  • Apparently this warning was introduced in Mongo Driver v3.6.4 so the basis solution will be to down grade to v3.6.3. There is a PR that try to stop the warning outputs, and also a report on the Jira for the Node Driver. https://jira.mongodb.org/browse/NODE-3114

    Update: The problem have been fixed with the version 3.6.5