Prevent access to Express routes until the route has completed its execution

Question

Prevent access to Express routes until the route has completed its execution

I am currently working on an Express REST-API route that involves various database actions. My goal is to prevent any other calls from being made to the REST-API until the actions within this particular route have been completed.

When this route is accessed, I want to ensure that no other routes can be accessed until the update-db-state function finishes processing.

router.put('/update-db-state', (req, res) => {
  ... performs multiple database-related tasks.
});

Is there a way to achieve this synchronization in Express?

javascript express

Answer 1

Answer №1

If you suspect there might be an underlying architectural issue and are unsure of the end goal you hope to achieve, consider the following approach:

let isLocked = false;
router.put('/update-db-state', (req, res) => {
   if (isLocked) {
       // Execute necessary actions like sending a response and exiting the function, or implementing a timeout mechanism, etc.
   }
   
   // Begin processing
   isLocked = true;
   // Perform various database operations
   // Upon completion
   isLocked = false;
});

Before proceeding with this method, I recommend reassessing the rationale behind such actions. The provided example serves as a basic demonstration.

Answer 2

If you suspect there might be an underlying architectural issue and are unsure of the end goal you hope to achieve, consider the following approach:

let isLocked = false;
router.put('/update-db-state', (req, res) => {
   if (isLocked) {
       // Execute necessary actions like sending a response and exiting the function, or implementing a timeout mechanism, etc.
   }
   
   // Begin processing
   isLocked = true;
   // Perform various database operations
   // Upon completion
   isLocked = false;
});

Before proceeding with this method, I recommend reassessing the rationale behind such actions. The provided example serves as a basic demonstration.

Prevent access to Express routes until the route has completed its execution

Answer №1

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