1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Copyright (C) MongoDB, Inc. 2022-present.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
package main
import (
"context"
"log"
"os"
"time"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/x/mongo/driver/connstring"
)
func main() {
uri := os.Getenv("MONGODB_URI")
compressor := os.Getenv("MONGO_GO_DRIVER_COMPRESSOR")
client, err := mongo.Connect(
context.Background(),
options.Client().ApplyURI(uri).SetCompressors([]string{compressor}))
if err != nil {
log.Panicf("Error connecting client: %v", err)
}
// Use the defaultauthdb (i.e. the database name after the "/") specified in the connection
// string to run the count operation.
cs, err := connstring.Parse(uri)
if err != nil {
log.Panicf("Error parsing connection string: %v", err)
}
if cs.Database == "" {
log.Panic("Connection string must contain a defaultauthdb.")
}
coll := client.Database(cs.Database).Collection("test")
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
count, err := coll.EstimatedDocumentCount(ctx)
if err != nil {
log.Panicf("failed executing count command: %v", err)
}
log.Println("Count of test collection:", count)
}
|
