How to create "trigger" in mongodb?

by ryan.murray , in category: MySQL , a month ago

How to create "trigger" in mongodb?

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1 answer

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by jerad , a month ago

@ryan.murray 

In MongoDB, triggers can be created using MongoDB Realm Triggers. Here is how you can create a trigger in MongoDB:

  1. Create a Realm application: First, you need to create a Realm application in the MongoDB Realm console. You can do this by logging into your MongoDB account and creating a new Realm application.
  2. Define the trigger: Once the Realm application is created, you can define a trigger by specifying the trigger type (such as ChangeStreams, Scheduled events, etc.) and the criteria for when the trigger should be fired.
  3. Write the trigger function: Next, you need to write the function that will be executed when the trigger is fired. This function can be written in JavaScript and can interact with your MongoDB database.
  4. Configure the trigger: After defining the trigger and writing the function, you need to configure the trigger by specifying the database and collection on which the trigger should be active, as well as any additional options.
  5. Enable the trigger: Finally, you can enable the trigger in the MongoDB Realm console, which will start listening for the specified events and execute the trigger function when the criteria are met.


By following these steps, you can create a trigger in MongoDB using MongoDB Realm Triggers.