(node:71307) [DEP0079] DeprecationWarning

Try to update MongoDB document Getting Deprecation Warning as (node:71307) [DEP0079] DeprecationWarning: Custom inspection function on Objects via .inspect() is deprecated Nod

Solution 1:

You have to not worry about this error this is mongoose warning . Actually Mongoose use inspect() to debug output . they will update it may be before node 12.x . For now it is safe to use this.

Nothing to worry.

Check this info. https://nodejs.org/api/deprecations.html#deprecations_dep0079_custom_inspection_function_on_objects_via_inspect

DEP0079: Custom inspection function on Objects via .inspect()# Type: Runtime

Using a property named inspect on an object to specify a custom inspection function for util.inspect() is deprecated. Use util.inspect.custom instead. For backward compatibility with Node.js prior to version 6.4.0, both may be specified.

If you want more detail, see this . This is under progress. Warning will come in node 10

https://github.com/Automattic/mongoose/issues/6420

Solution 2:

In order to not get the deprecation message you can upgrade to mongoose version 5.2.10 or later according to this Github mongoose issue and the set the following at a proper location in code:

mongoose.set('useCreateIndex', true)

Solution 3:

upgrade to 5.2.10 and set

  mongoose.set('useCreateIndex', true);

Solution 4:

Another way to set it is...

mongoose.connect(
    "mongodb://<user>:<password>@<url>",
    { 
      useNewUrlParser: true, 
      useCreateIndex: true 
    }
  )

More information can be found here: https://github.com/Automattic/mongoose/issues/6890

Solution 5:

To solve this problem, You have to use useNewUrlParser and useCreateIndex. See the code below.

mongoose.connect(
 config.databaseUrl,
 { 
    useNewUrlParser: true, 
    useCreateIndex: true 
 }
)

Or

mongoose.set("useCreateIndex", true);    
mongoose.connect(
    config.databaseUrl,
    { 
        useNewUrlParser: true
    }
  );