api for fetching credit balance

[pjain1]

Checklist:

• Covered by tests
• Ran it and it works as intended
• Reviewed the diff before requesting a review
• Checked for unhandled edge cases
• Linked the issues it closes
• Checked if the docs need to be updated. If so, create a separate Linear DOCS issue
• Intend to cherry-pick into the release branch
• I'm proud of this work!

[AdityaHegde]

Worth looking into using events for this if present. But for the 1st cut on-demand API call to orb should be fine.

[pjain1]

Worth looking into using events for this if present. But for the 1st cut on-demand API call to orb should be fine.

Webhooks are only triggered on a single fixed threshold and depletion.

@AdityaHegde This is just for when billing page is opened and we want to show the credit balance at that time. This should not be used for continuously fetching balance on every page load. For showing banners on approx balance we can look into this PR as per the requirement.

[AdityaHegde]

Ah got it. Then we will have to hit the query each time then.

Ya the plan is to use it in the billing page only. For banners that fetch on each page load, the billing issue will be sufficient.