Why using (var cursor = await collection.FindAsync(filter)) is not working?

[Prashant Maurya]

I have tried my level best to access my db using the methods specified in the mongoDb official.

                     using (var cursor = await collection.FindAsync(filter))                    

                                                    {

                while (await cursor.MoveNextAsync())

                {

                    var batch = cursor.Current;

                    foreach (var document in batch)

                    {

                        user.Add(new

                        {

                            UserId = document["_id"].ToString(),

                            FName = document["FName"].ToString(),

                            LName = document["LName"].ToString(),

                            ActiveStatus = document["ActiveStatus"].ToBoolean()

                        });

                    }

                }

            }

But the line var cursor=await collection.FindAsync(filter) is not executing.

Interesting part is the same piece of code working in console application. The application which i am working currently is MVC Application using .Net Framework.

Please tell me the solution to solve the above mentioned query.

I have posted the same question on stackoverflow also.

[Robert Stam]

Your code looks correct.

One possibility is that you are experiencing an async deadlock. Read up on ConfigureAwait(false) and try changing your await calls to:

await collection.FindAsync(filter).ConfigureAwait(false)

await cursor.MoveNextAsync().ConfigureAwait(false)

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[Ivan Artemov]

ConfigureAwait is mostly library-side method and use it in client code is bad practice, especially for this simple use case

понедельник, 23 октября 2017 г., 18:08:17 UTC+3 пользователь Robert Stam написал:

Your code looks correct.

One possibility is that you are experiencing an async deadlock. Read up on ConfigureAwait(false) and try changing your await calls to:

await collection.FindAsync(filter).ConfigureAwait(false)

await cursor.MoveNextAsync().ConfigureAwait(false)

On Sun, Oct 22, 2017 at 3:10 AM, Prashant Maurya <er.maury...@gmail.com> wrote:

I have tried my level best to access my db using the methods specified in the mongoDb official.

                     using (var cursor = await collection.FindAsync(filter))                    

                                                    {

                while (await cursor.MoveNextAsync())

                {

                    var batch = cursor.Current;

                    foreach (var document in batch)

                    {

                        user.Add(new

                        {

                            UserId = document["_id"].ToString(),

                            FName = document["FName"].ToString(),

                            LName = document["LName"].ToString(),

                            ActiveStatus = document["ActiveStatus"].ToBoolean()

                        });

                    }

                }

            }

But the line var cursor=await collection.FindAsync(filter) is not executing.

Interesting part is the same piece of code working in console application. The application which i am working currently is MVC Application using .Net Framework.

Please tell me the solution to solve the above mentioned query.

I have posted the same question on stackoverflow also.

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[Robert Stam]

I understand. I thought it was worth suggesting since you say it works in a console application.

You could also try using the synchronous API if you aren't committed to using async.

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