In mongodb-go-driver, how to marshal/unmarshal BSON in to a struct

Question

I am new to mongodb-go-driver. But i am stuck.

cursor, e := collection.Find(context.Background(), bson.NewDocument(bson.EC.String(\"name\", id)))

for cursor.Nex         


        

Answer 1

Newer "github.com/mongodb/mongo-go-driver" expects object IDs defined as

type Application struct {
    ID      *primitive.ObjectID `json:"ID" bson:"_id,omitempty"`
}

This serializes into JSON "ID":"5c362f3fa2533bad3b6cf6f0" and here is how you get the ID from insert result

if oid, ok := res.InsertedID.(primitive.ObjectID); ok {
    app.ID = &oid
}

Convert from string

appID := "5c362f3fa2533bad3b6cf6f0"    
id, err := primitive.ObjectIDFromHex(appID)
if err != nil {
    return err
}
_, err = collection.DeleteOne(nil, bson.M{"_id": id})

Convert into string

str_id := objId.Hex()