error connecting to mongodb atlas with vibe.d

[notsteve]

Hi,

I am trying to setup a simple webserver in D using vibe.d (0.9.4) 
and want to use mongoDB as a database. To achieve this, I've set 
up a mongoDB atlas instance with the following command inside the 
standard app.d file created by vibe.d

```
  string MongoURL = 
"mongodb://username:<password>@cluster0-shard-00-01.gaetq.mongodb.net:27017";

     auto client = connectMongoDB(MongoURL);

```

but am getting error [1] below.

Alternatively if I use the following path to the instance

```
     string MongoURL =       
"mongodb://username:password@cluster0-shard-00-01.gaetq.mongodb.net:27017/myFirstDatabase?ssl=true&sslverifycertificate=false";

```

I get error [2].

I have tried accessing this instance using other programming 
languages and am not having any issues so am sure it is not an 
issue with the database instance. Does anyone have experience 
with this?



Error 1:
```
object.Exception at ../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/net.d(777): Reached end of stream while reading data.
----------------
source/app.d:29 pure @safe noreturn 
std.exception.bailOut!(Exception).bailOut(immutable(char)[], 
ulong, scope const(char)[]) [0x10af61e82]
/Library/D/dmd/src/phobos/std/exception.d:439 pure @safe bool 
std.exception.enforce!().enforce!(bool).enforce(bool, lazy 
const(char)[], immutable(char)[], ulong) [0x10af641ae]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/net.d:777 @safe bool vibe.core.net.TCPConnection.read(scope ubyte[], eventcore.driver.IOMode).__lambda4!(core.time.Duration).__lambda4(core.time.Duration) [0x10b1f7d4b]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/net.d:897 @safe void vibe.core.net.loopWithTimeout!(vibe.core.net.TCPConnection.read(scope ubyte[], eventcore.driver.IOMode).__lambda4, vibe.core.net.ReadTimeoutException).loopWithTimeout(core.time.Duration, immutable(char[])) [0x10b1f7bea]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/net.d:773 @safe ulong vibe.core.net.TCPConnection.read(scope ubyte[], eventcore.driver.IOMode) [0x10b1f5b3e]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/net.d:789 @safe void vibe.core.net.TCPConnection.read(scope ubyte[]) [0x10b1f5b80]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/internal/interfaceproxy.d:310 @safe void vibe.internal.interfaceproxy.InterfaceProxy!(vibe.core.stream.Stream).InterfaceProxy.ProxyImpl!(vibe.core.net.TCPConnection).ProxyImpl.__mixin8.__mixin3.__mixin3.__mixin3.__mixin3.__mixin2.read(void[], scope ubyte[]) [0x10af67273]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/internal/interfaceproxy.d:199 @safe void vibe.internal.interfaceproxy.InterfaceProxy!(vibe.core.stream.Stream).InterfaceProxy.__mixin22.__mixin3.__mixin3.__mixin3.__mixin3.__mixin2.read(scope ubyte[]) [0x10af661e9]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:538 @safe void vibe.db.mongo.connection.MongoConnection.recv(ubyte[]) [0x10afab0b2]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:523 @safe int vibe.db.mongo.connection.MongoConnection.recvInt() [0x10afaad11]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:437 @safe int vibe.db.mongo.connection.MongoConnection.recvReply!(vibe.data.bson.Bson).recvReply(int, scope void delegate(long, vibe.db.mongo.flags.ReplyFlags, int, int) @safe, scope void delegate(ulong, ref vibe.data.bson.Bson) @safe) [0x10afaed2b]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:322 @safe void vibe.db.mongo.connection.MongoConnection.query!(vibe.data.bson.Bson).query(immutable(char)[], vibe.db.mongo.flags.QueryFlags, int, int, vibe.data.bson.Bson, vibe.data.bson.Bson, scope void delegate(long, vibe.db.mongo.flags.ReplyFlags, int, int) @safe, scope void delegate(ulong, ref vibe.data.bson.Bson) @safe) [0x10afaf5d3]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:223 @safe void vibe.db.mongo.connection.MongoConnection.connect() [0x10afa941a]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/client.d:64 @safe vibe.db.mongo.connection.MongoConnection vibe.db.mongo.client.MongoClient.__ctor(immutable(char)[]).__lambda4() [0x10af802e7]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/connectionpool.d:94 @safe vibe.core.connectionpool.LockedConnection!(vibe.db.mongo.connection.MongoConnection).LockedConnection vibe.core.connectionpool.ConnectionPool!(vibe.db.mongo.connection.MongoConnection).ConnectionPool.lockConnection() [0x10af80e17]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/client.d:170 @safe vibe.core.connectionpool.LockedConnection!(vibe.db.mongo.connection.MongoConnection).LockedConnection vibe.db.mongo.client.MongoClient.lockConnection() [0x10af80670]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/client.d:71 @safe vibe.db.mongo.client.MongoClient vibe.db.mongo.client.MongoClient.__ctor(immutable(char)[]) [0x10af80263]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/mongo.d:89 @safe vibe.db.mongo.client.MongoClient vibe.db.mongo.mongo.connectMongoDB(immutable(char)[]) [0x10afc030e]
source/app.d:11 _Dmain [0x10af61ae9]
Program exited with code 1
```



Error 2:
```
object.Exception at ../../../.dub/packages/vibe-d-0.9.4/vibe-d/data/vibe/data/bson.d(813): BSON value is type 'int_', expected to be one of [double_]
----------------
../../../.dub/packages/vibe-d-0.9.4/vibe-d/data/vibe/data/bson.d:813 const @safe void vibe.data.bson.Bson.checkType(in vibe.data.bson.Bson.Type[]...) [0x1099bbff5]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/data/vibe/data/bson.d:396 const @property @safe double vibe.data.bson.Bson.get!(double).get() [0x10980a7d6]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:640 @safe void vibe.db.mongo.connection.MongoConnection.scramAuthenticate().__lambda8!(ulong, vibe.data.bson.Bson).__lambda8(ulong, ref vibe.data.bson.Bson) [0x109802a5c]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:477 @safe int vibe.db.mongo.connection.MongoConnection.recvReply!(vibe.data.bson.Bson).recvReply(int, scope void delegate(long, vibe.db.mongo.flags.ReplyFlags, int, int) @safe, scope void delegate(ulong, ref vibe.data.bson.Bson) @safe) [0x109804f15]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:322 @safe void vibe.db.mongo.connection.MongoConnection.query!(vibe.data.bson.Bson).query(immutable(char)[], vibe.db.mongo.flags.QueryFlags, int, int, vibe.data.bson.Bson, vibe.data.bson.Bson, scope void delegate(long, vibe.db.mongo.flags.ReplyFlags, int, int) @safe, scope void delegate(ulong, ref vibe.data.bson.Bson) @safe) [0x1098055a3]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:634 @safe void vibe.db.mongo.connection.MongoConnection.scramAuthenticate() [0x1098023e5]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/connection.d:269 @safe void vibe.db.mongo.connection.MongoConnection.connect() [0x1097ff75a]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/client.d:64 @safe vibe.db.mongo.connection.MongoConnection vibe.db.mongo.client.MongoClient.__ctor(immutable(char)[]).__lambda4() [0x1097d62b7]
../../../.dub/packages/vibe-core-1.22.3/vibe-core/source/vibe/core/connectionpool.d:94 @safe vibe.core.connectionpool.LockedConnection!(vibe.db.mongo.connection.MongoConnection).LockedConnection vibe.core.connectionpool.ConnectionPool!(vibe.db.mongo.connection.MongoConnection).ConnectionPool.lockConnection() [0x1097d6de7]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/client.d:170 @safe vibe.core.connectionpool.LockedConnection!(vibe.db.mongo.connection.MongoConnection).LockedConnection vibe.db.mongo.client.MongoClient.lockConnection() [0x1097d6640]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/client.d:71 @safe vibe.db.mongo.client.MongoClient vibe.db.mongo.client.MongoClient.__ctor(immutable(char)[]) [0x1097d6233]
../../../.dub/packages/vibe-d-0.9.4/vibe-d/mongodb/vibe/db/mongo/mongo.d:89 @safe vibe.db.mongo.client.MongoClient vibe.db.mongo.mongo.connectMongoDB(immutable(char)[]) [0x1098162de]
source/app.d:11 _Dmain [0x1097b7a9d]
Program exited with code 1
```