3

I need to call a MongoDB Stored JavaScript Function in C# Code.

My Stored JavaScript Function GetUserInfo

function() {
    return db.getCollection('Profession').find({});
}

Execution :

db.loadServerScripts();

GetUserInfo();

It returns the Collection with following documents (Here I pasted only 2 Documents, in real I'm having more than 10K Documents)

{
    "_id" : ObjectId("575845a713d284da0ac2ee81"),
    "Profession_id" : "575841b313d284da0ac2ee7d",
    "Prof_Name" : "Chief Officer"
}

{
    "_id" : ObjectId("575845d213d284da0ac2ee82"),
    "Profession_id" : "575841b313d284da0ac2ee7d",
    "Prof_Name" : "Executive Officer"
}

In C#:

IMongoClient _client;
IMongoDatabase _database;

_client = new MongoClient();
_database = _client.GetDatabase("SampleDB");

Kindly assist me how to call MongoDB Stored JavaScript Function in C# Code.

The following Question uses Eval. In the latest driver, I can't able to find the Extended Function _database.Eval

Calling a Stored Procedure in MongoDB via C#

Kindly assist me...

Improve this question
8
  • same as stackoverflow.com/questions/23709351/… Commented Jun 9, 2016 at 7:45
  • 1
    It's not working for the current C# driver. There is no extended function Eval. I assist me... Commented Jun 9, 2016 at 7:48
  • api.mongodb.com/csharp/current/html/… isn't that the eval function, that can be used? Commented Jun 9, 2016 at 7:58
  • gist.github.com/jamesikanos/b5897b1693b5c3dd1f87 that can help Commented Jun 9, 2016 at 8:03
  • @ntohl - Dead Link. Kindly check the link. 404 Error - Hmm, we can't reach this page. Commented Jun 9, 2016 at 8:04

1 Answer 1

Reset to default
1

You can use the RunCommand method to execute the eval command. We've removed it from the API itself because we don't want you using it. Have a look at these sections for why you shouldn't be using eval, first and second.

I'd highly suggest you rethink your "stored procedure" strategy. While I applaud your efforts to centralize and DRY your code, eval in MongoDB will kill performance and concurrency.

Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

can you give a sample for use RunCommand to call a stored javascript?

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.