How can I map an Object field on mongodb to a struct on Golang

Question

I have the following document on mongodb:

{
    "random": {
          "is_it_true": true
    }
}

And i want to read it and map it on the following struct on Golang:

type StructGolang struct {
    IsItTrue bool `bson:"random.is_it_true"`
}

But it isn't working. I'm getting an error when executing the Find command on the database.

Can you share the golang code, where you are performing the find operation? Also, share the error which you are getting. — hhharsha36
– hhharsha36, Commented May 8, 2021 at 4:59

prasad_ · Accepted Answer · 2021-05-08 05:39:30Z

1

Assuming your document is:

{
    "name": "some str-1",
    "random": {
          "isTrue": true
    }
}

You can model your document as one of the following (depends upon your usage):

type Random struct {
    IsTrue bool
}

type MyObj struct {
    Name string
    Random Random
}

Or,

type MyObj struct {
    Name string
    Random map[string]bool
}

Then query as follows:

var result MyObj
err := collection.FindOne(context.TODO(), bson.D{{}}).Decode(&result)

answered May 8, 2021 at 5:39

prasad_

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