After submitting a Post form, I receive a req.body containing multiple values in the following format:
console.log(req.body)
{
productid:[1, 2, 3]
qty: [3, 5, 6]
}
I'm trying to implement a for loop to use these values in SQL queries. However, I encounter an issue with the first query, likely due to it being an async await function.
My inquiry pertains to how I can execute multiple SQL queries within a for loop while still utilizing an async await function?
This is how you can achieve it:
for each element in the array, execute an asynchronous query using awaitBecause I simply performed an update without waiting for a response, there was no need to utilize await/async. The process functioned properly after removing async/await.
Thanks a lot!
Apologies for the unclear inquiry.
If you're looking to run tasks simultaneously, consider creating an array of promises and utilizing Promise.all to ensure all operations are completed efficiently. This approach allows for optimization of your code compared to a sequential execution.
const tasks = []
for(let item of list) {
tasks.push(runTask(item))
}
const output = await Promise.all(tasks)
//Process the results as needed.
Remember to declare your request handling function with the async keyword to successfully execute the code.
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