feat: add mongodb support (#82)

* feat: add mongodb enum

* fix: isMongodb var condition

* feat: add init mongodb connection

* feat: add mongodb operations for various db methods

* fix: error message

server/db/mongodb.go

@@ -0,0 +1,81 @@
+package db
+
+import (
+	"context"
+	"time"
+
+	"github.com/authorizerdev/authorizer/server/constants"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.mongodb.org/mongo-driver/mongo/readpref"
+)
+
+func initMongodb() (*mongo.Database, error) {
+	mongodbOptions := options.Client().ApplyURI(constants.DATABASE_URL)
+	maxWait := time.Duration(5 * time.Second)
+	mongodbOptions.ConnectTimeout = &maxWait
+	mongoClient, err := mongo.NewClient(mongodbOptions)
+	if err != nil {
+		return nil, err
+	}
+	ctx, _ := context.WithTimeout(context.Background(), 30*time.Second)
+	err = mongoClient.Connect(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	err = mongoClient.Ping(ctx, readpref.Primary())
+	if err != nil {
+		return nil, err
+	}
+
+	mongodb := mongoClient.Database(constants.DATABASE_NAME, options.Database())
+
+	mongodb.CreateCollection(ctx, Collections.User, options.CreateCollection())
+	userCollection := mongodb.Collection(Collections.User, options.Collection())
+	userCollection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		mongo.IndexModel{
+			Keys:    bson.M{"id": 1},
+			Options: options.Index().SetUnique(true).SetSparse(true),
+		},
+	}, options.CreateIndexes())
+	userCollection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		mongo.IndexModel{
+			Keys:    bson.M{"email": 1},
+			Options: options.Index().SetUnique(true).SetSparse(true),
+		},
+	}, options.CreateIndexes())
+
+	mongodb.CreateCollection(ctx, Collections.VerificationRequest, options.CreateCollection())
+	verificationRequestCollection := mongodb.Collection(Collections.VerificationRequest, options.Collection())
+	verificationRequestCollection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		mongo.IndexModel{
+			Keys:    bson.M{"id": 1},
+			Options: options.Index().SetUnique(true).SetSparse(true),
+		},
+	}, options.CreateIndexes())
+	verificationRequestCollection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		mongo.IndexModel{
+			Keys:    bson.M{"email": 1, "identifier": 1},
+			Options: options.Index().SetUnique(true).SetSparse(true),
+		},
+	}, options.CreateIndexes())
+	verificationRequestCollection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		mongo.IndexModel{
+			Keys:    bson.M{"token": 1},
+			Options: options.Index().SetSparse(true),
+		},
+	}, options.CreateIndexes())
+
+	mongodb.CreateCollection(ctx, Collections.Session, options.CreateCollection())
+	sessionCollection := mongodb.Collection(Collections.Session, options.Collection())
+	sessionCollection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		mongo.IndexModel{
+			Keys:    bson.M{"id": 1},
+			Options: options.Index().SetUnique(true).SetSparse(true),
+		},
+	}, options.CreateIndexes())
+
+	return mongodb, nil
+}