Huijie - fix recalculation for tangible hours

[metaphor987]

Description

the API for recalculating tangible hours for all users in PR #1004 got errors due to Azure's time limit for idle TCP connections. This PR sends "keep-alive" messages every 150 seconds to the connection active.

Related PRS (if any):

This backend PR is a fix for #1004

How to test:

1. check into current branch
2. do npm install, npm run build and npm start to run this PR locally
3. Clear site data/cache
4. log as any user
5. (before merging) use Postman to send POST request to http://localhost:4500/api/TimeEntry/recalculateHoursAllUsers/tangible
6. (after merging) use Postman to send POST request to https://hgn-rest-dev.azurewebsites.net/api/TimeEntry/recalculateHoursAllUsers/tangible for Dev or https://hgn-rest-beta.azurewebsites.net/api/TimeEntry/recalculateHoursAllUsers/tangible for Prod and check the response messages

[ArtemisNyx3]

Hi @metaphor987
I am getting an unauthorized request error if I try to run it with an admin account. Could you please help me if I had the wrong Postman setup.

[metaphor987]

Hi @ArtemisNyx3,
Thank you for reviewing! This PR has already been merged as a test for a quick fix. Sorry that I didn't make it clear in the comments earlier.
For the Postman setup, I put the Authorization key in the following place and it worked: