Send an http request in mysql trigger after insertion in a table

Question

I am working in PHP.I have to created a mysql trigger which fires an http request after insertion on table.Below is the code.

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CREATE TRIGGER Test         


        

Answer 1

Although it's technically possible I'd strongly discourage you from going this route for several reasons:

1. Using UDFs is a security risk on its own. UDFs are available to all database users - you cannot grant EXECUTE privileges for them.

2. Doing any non-transactional operations in a trigger is simply wrong. Data changes made by DML statement (in your case it's an update) can and will be rolled back in a real world scenario. You won't be able to undo your http calls.

3. You're prolonging the time for insert transaction possibly causing lock-wait-timeouts for other update/insert operations.

Highly recommended reading:

• The Trouble with Triggers

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Now most likely what you need is a work queue e.g. beanstalked. Using such specialized middleware is much better than organizing queues with database.