How do I find most recent (identical) document with findOne in Mongoose-CodePudding

I am trying to find a document in Mongoose by using findOne ( not find ), and I want to get the most recent document even though they may have identical fields.

For example, these are the documents in Mongoose:

// Let's say this one was created a week ago in Mongoose
{
  name: "John Smith",
  age: 27,
  industry: "finance"
}

// This one was created this morning
{
  name: "John Smith",
  age: 27,
  industry: "healthcare"
}

So I need to do a query along the lines of this:

const client = await Client.findOne({name: "John Smith"});

console.log(client);

/* 
result: 
{
  name: "John Smith",
  age: 27,
  industry: "finance"
} 

expected: 
{
  name: "John Smith",
  age: 27,
  industry: "healthcare"
}
*/

So when I Client.findOne by name, I'm expecting the most recent document. However Client.findOne seems to just return the old one.

Any advice?

CodePudding user response：

pass the argument as an Object sort: { 'created_at' : -1 } changing -1 to 1 will fetch the oldest record So your new query will look like

const client = Client.findOne({name: "John Smith"}).sort({created_at: -1});