Mongo trace is a simple tool who help you to track and save operations performed on your Mongo Database.
This is just a quick introduction.
Let's start with a trivial example:
package main
import (
"context"
"fmt"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/bson"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/mongo/readpref"
"log"
)
type Person struct {
ID string `json:"_id" bson:"_id"`
Name string `json:"name" bson:"name"`
}
func main() {
ctx := context.TODO()
clientOptions := options.Client().ApplyURI("mongodb:https://localhost:27017")
client, err := mongo.Connect(ctx, clientOptions)
if err != nil {
log.Fatal(err)
}
err = client.Ping(ctx, readpref.Primary())
if err != nil {
log.Fatal(err)
}
db := client.Database("Test")
// Create our first record
initialRecord := Person{
ID: "1234567890",
Name: "Jane",
}
_, err = db.Collection("Person").InsertOne(ctx, initialRecord)
if err != nil {
log.Fatal(err)
}
// Now we update our first record
filter := bson.M{"_id": initialRecord.ID}
_, err = db.Collection("Person").UpdateOne(ctx, filter, bson.M{"$set": bson.M{"name":"Jane Doe"}})
if err != nil {
log.Fatal(err)
}
trace, err := TraceOperationUpdateWithFilter(db, "Trace", "Person", initialRecord, filter)
if err != nil {
log.Fatal(err)
}
fmt.Println(trace.Difference)
}This output in a html "pre" tag will be will be
mongotrace.TraceOperationAdd()
mongotrace.TraceOperationDelete()
mongotrace.TraceOperationUpdate()
mongotrace.TraceOperationUpdateWithFilter()