Business
Jobs
  • About Us
  • Solutions
    • Job Postings
      Post your job and receive qualified candidates in 48h.
    • Candidate Assessments
      500+ technical and psychological tests, plus anti-fraud.
    • Headhunting
      Tailor-made executive search from start to finish.
    • Payroll + EOR
      Payroll dispersal and EOR across 15+ LATAM countries.
  • Pricing
  • Jobs

0

387
Views
Mongodb c# driver: view MQL bson query generated from linq

Using the latest version (2.14) is there any way to view the bson query document generated by a specific linq query?

I want to do this for two reasons:

  1. debugging queries
  2. copying them to run in another mongo client like compass

I know I can enable profiling, but I can't see any way to guarantee a query you find in the mongo log was generated by a specific line of code or query. Plus it's a bit long winded to do it via profiling.

over 4 years ago · Santiago Trujillo
2 answers
Answer question

0

You have 2 options to get MQL query from LINQ request:

  1. Install lately released query analyzer. As I know it may not be 100% accurate if you use global static serialization configuration.
  2. Configure CommandStartedEvent event subscriber and analyze Command document. Pay attention that you may need to remove some technical fields like $db (maybe few more) that might not be parsed by compass correctly, you will see it in the exception message if any.
over 4 years ago · Santiago Trujillo Report

0

@dododo answer is the right and best one, I'm just adding some code here which works for option 2:

    var settings = MongoClientSettings.FromUrl(new MongoUrl(@"mongodb://localhost"));
    settings.ClusterConfigurator = builder =>
    {
        builder.Subscribe<CommandStartedEvent>(x =>
        {
            var queryDocument = x.Command;
        });
    };

    var client =  new MongoClient(settings);
over 4 years ago · Santiago Trujillo Report
Answer question
Find remote jobs

Discover the new way to find a job!

Top jobs
Top job categories
Business
Post vacancy Pricing Sales
Legal
Terms and conditions Privacy policy
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Show me some job opportunities
There's an error!