| err = coll.FindOne(context.TODO(), bson.D{{"firstName", Mike}}).Decode(&result) |
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| cursor, err := coll.Find(context.TODO(), bson.D{{"age", bson.D{{"$gte", 46}}}}) |
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| result, err := coll.InsertOne( | context.TODO(), | bson.D{ | {"animal", "Dog"}, | {"breed", "Beagle"} | } | ) |
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Insert Multiple Documents
| docs := []interface{} { | bson.D{{"firstName", "Erik"}, {"age", 27}}, | bson.D{{"firstName", "Mohammad"}, {"lastName", "Ahmad"}, {"age", 10}}, | bson.D{{"firstName", "Todd"}}, | bson.D{{"firstName", "Juan"}, {"lastName", "Pablo"}} | } | | result, err := coll.InsertMany(context.TODO(), docs) |
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| result, err := coll.UpdateOne( | context.TODO(), | bson.D{{"firstName", "Erik"}}, | bson.D{{"$set", bson.D{{"age", 28}}}} | ) | fmt.Printf("The number of modified documents: %d\n", result.ModifiedCount) |
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Update Multiple Documents
| result, err := coll.UpdateMany( | context.TODO(), | bson.D{{"age", bson.D{{"$gte", 58}}}}, | bson.D{{"$set", bson.D{{"description", "Senior"}}}} | ) | fmt.Printf("The number of modified documents: %d\n", result.ModifiedCount) |
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Update Arrays in Documents
| result, err := coll.UpdateMany( | context.TODO(), | bson.D{}, | bson.D{{"$push", bson.D{{family, "brother"}}}} | ) |
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| result, err := coll.ReplaceOne( | context.TODO(), | bson.D{{"firstName", "Mick"}}, | bson.D{{"firstName", "Mike"}, {"lastName", "Doe"}} | ) |
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| result, err := coll.DeleteOne( | context.TODO(), | bson.D{{"firstName", "Xiao"}} | ) |
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Delete Multiple Documents
| results, err := coll.DeleteMany( | context.TODO(), | bson.D{{"age", bson.D{{"$lte", 12}}}} | ) |
|
| models := []mongo.WriteModel{ | mongo.NewInsertOneModel().SetDocument(bson.D{{"firstName", "John"}, {"age", 5}}), | mongo.NewUpdateOneModel().SetFilter(bson.D{{"firstName", "Juan"}}). | SetUpdate(bson.D{{"$set", bson.D{{"age", 12}}}}), | } | opts := options.BulkWrite().SetOrdered(true) | | results, err := coll.BulkWrite(context.TODO(), models, opts) |
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| pipeline := mongo.Pipeline{bson.D{{"$match", bson.D{{"operationType", "insert"}}}}} | cs, err := coll.Watch(context.TODO(), pipeline) |
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Access Data from a Cursor Iteratively
| cursor, err := coll.Find(context.TODO(), bson.D{}) | | for cursor.Next(context.TODO()) { | var result bson.D | if err := cursor.Decode(&result); err != nil { | log.Fatal(err) | } | fmt.Println(result) | } |
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Access Data from a Cursor as an Array
| cursor, err := coll.Find(context.TODO(), bson.D{}) | | var results []bson.D | if err = cursor.All(context.TODO(), &results); err != nil { | panic(err) | } |
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| count, err := coll.CountDocuments(context.TODO(), bson.D{}) |
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List the Distinct Documents or Field Values | results, err := coll.Distinct(context.TODO(), "firstName", bson.D{}) |
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Limit the Number of Documents Retrieved
| cursor, err := coll.Find(context.TODO(), bson.D{}, options.Find().SetLimit(2)) |
|
| | cursor, err := coll.Find(context.TODO(), bson.D{}, options.Find().SetSkip(4)) |
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Sort the Documents When Retrieving Them
| cursor, err := coll.Find(context.TODO(), bson.D{}, options.Find().SetSort(bson.D{{"age", 1}})) |
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Project Document Fields When Retrieving Them
| cursor, err := coll.Find( | context.TODO(), | bson.D{}, | options.Find().SetProjection( | bson.D{{"age", 0}, {"_id",0}} | ) | ) |
|
| model := mongo.IndexModel{Keys: bson.D{{"firstName", 1}, {"lastName", -1}}} | name, err := coll.Indexes().CreateOne(context.TODO(), model) |
|
| | cursor, err := coll.Find(context.TODO(), bson.D{{"$text", bson.D{{"$search", "beagle"}}}}) |
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