mirror of
https://github.com/tiennm99/keepalive.git
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tiennm99
e3b7ea5011
Consolidates the *-keepalive family (redis, valkey, postgresql, mysql, mongodb, couchbase) into a single binary with a runtime DB_TYPE dispatch and an Adapter interface. Original repos archived with a pointer here.
61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package adapter
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import (
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"context"
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"go.mongodb.org/mongo-driver/v2/bson"
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"go.mongodb.org/mongo-driver/v2/mongo"
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"go.mongodb.org/mongo-driver/v2/mongo/options"
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)
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func init() {
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Registry["mongodb"] = func() (Adapter, error) { return &mongoAdapter{}, nil }
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Registry["mongo"] = Registry["mongodb"]
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}
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type mongoAdapter struct {
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client *mongo.Client
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coll *mongo.Collection
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docID string
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}
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func (a *mongoAdapter) Connect(ctx context.Context) error {
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uri, err := envOrFail("MONGODB_URI")
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if err != nil {
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return err
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}
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dbName, err := envOrFail("MONGODB_DATABASE")
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if err != nil {
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return err
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}
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collName, err := envOrFail("MONGODB_COLLECTION")
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if err != nil {
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return err
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}
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client, err := mongo.Connect(options.Client().ApplyURI(uri))
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if err != nil {
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return err
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}
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a.client = client
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a.coll = client.Database(dbName).Collection(collName)
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a.docID = envOr("COUNTER_KEY", "counter")
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return client.Ping(ctx, nil)
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}
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func (a *mongoAdapter) Increment(ctx context.Context) (int64, error) {
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update := bson.M{"$inc": bson.M{"count": 1}}
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opts := options.FindOneAndUpdate().SetUpsert(true).SetReturnDocument(options.After)
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var out struct {
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Count int64 `bson:"count"`
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}
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err := a.coll.FindOneAndUpdate(ctx, bson.M{"_id": a.docID}, update, opts).Decode(&out)
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if err != nil {
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return 0, err
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}
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return out.Count, nil
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}
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func (a *mongoAdapter) Close(ctx context.Context) error {
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return a.client.Disconnect(ctx)
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}
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