-
Notifications
You must be signed in to change notification settings - Fork 0
/
repo.go
98 lines (81 loc) · 2.1 KB
/
repo.go
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
package repo
import (
"context"
"fmt"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/x/mongo/driver/connstring"
)
const (
ScopeCollection = "scopes"
CommentCollection = "comments"
)
type Repository struct {
cli *mongo.Client
db string
scopes *mongo.Collection
comments *mongo.Collection
}
func NewRepository(ctx context.Context, databaseURL string) (*Repository, error) {
// parse the connection string and make sure we have a database specified.
connStr, err := connstring.ParseAndValidate(databaseURL)
if err != nil {
return nil, fmt.Errorf("invalid database connection string: %w", err)
}
if connStr.Database == "" {
connStr.Database = "comment-service:v1"
}
// create a mongo-db client
cli, err := mongo.Connect(ctx, options.Client().ApplyURI(databaseURL))
if err != nil {
return nil, fmt.Errorf("failed to connect to mongodb: %w", err)
}
db := cli.Database(connStr.Database)
// try to ping mongo
if err := cli.Ping(ctx, nil); err != nil {
return nil, fmt.Errorf("failed to ping mongodb: %w", err)
}
r := &Repository{
cli: cli,
db: connStr.Database,
scopes: db.Collection(ScopeCollection),
comments: db.Collection(CommentCollection),
}
if err := r.prepare(ctx); err != nil {
return r, fmt.Errorf("failed to prepare collections: %w", err)
}
return r, nil
}
func (repo *Repository) prepare(ctx context.Context) error {
_, err := repo.comments.Indexes().
CreateMany(ctx, []mongo.IndexModel{
{
Keys: bson.D{
{Key: "creator_id", Value: 1},
},
},
})
if err != nil {
return fmt.Errorf("failed to create comment indexes: %w", err)
}
_, err = repo.scopes.Indexes().
CreateMany(ctx, []mongo.IndexModel{
{
Keys: bson.D{
{Key: "name", Value: 1},
},
Options: options.Index().SetUnique(true),
},
{
Keys: bson.D{
{Key: "scopeId", Value: 1},
},
Options: options.Index().SetUnique(true),
},
})
if err != nil {
return fmt.Errorf("failed to create scope indexes: %w", err)
}
return nil
}