[REFACTOR]: [STAX] Add amount conversion framework to Stax

[ImSagnik007]

:memo: Feature Description

Currently, amounts are represented as i64 values throughout the application. We want to introduce a Unit struct that explicitly states the denomination. A new type, MinorUnit, has been added to standardize the flow of amounts across the application. This type will now be used by all the connector flows.

Rather than handling conversions in each connector, we will centralize the conversion logic in one place within the core of the application.

:hammer: Possible Implementation

• For each connector, we need to create an amount conversion function. Connectors will specify the format they require, and the core framework will handle the conversion accordingly.
• Connectors should invoke the convert function to receive the amount in their required format.
• Refer to the connector documentation to determine the required amount format for each connector.
• You can refer this PR for more context.

🔖 Note: All the changes needed should be contained within hyperswitch/crates/router/src/connector/ , crates/router/src/types/api.rs , crates/router/tests/connectors/

:package: Have you spent some time checking if this feature request has been raised before?

• [ ] I checked and didn't find a similar issue

:package: Have you read the Contributing Guidelines?

• [ ] I have read the Contributing Guidelines

:sparkles: Are you willing to submit a PR?

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• Once assigned, submit a pull request (PR).
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[Monis-Ahmed-Rizvi]

I’d be happy to take on this issue if no one else is actively working on it.

[gorakhnathy7]

Hey Guys, Kindly request assignment for one issue at a time, and don't spam. You can ask for the next issue to be assigned, once you have completed the earlier assigned one.

[Monis-Ahmed-Rizvi]

when i wrote that request no issue was assigned to me

[amitroy-thedev]

Hey @gorakhnathy7 I would like to work on the issue, If nobody is assigned to this issue, assign it to me..

[gorakhnathy7]

Hey @amitroy-thedev Assigned the issue to you, Thanks for your interest.

[amitroy-thedev]

Hey @gorakhnathy7 would you please guide me where should I make changes I am unable to find files in hyperswitch/crates/router/src/connector/ it is in the hyperswitch/crates/hyperswitch_connector/src/connector/

[swangi-kumari]

Hey @gorakhnathy7 would you please guide me where should I make changes I am unable to find files in hyperswitch/crates/router/src/connector/ it is in the hyperswitch/crates/hyperswitch_connector/src/connector/

Hey @amitroy-thedev , You have to make changes in hyperswitch/crates/hyperswitch_connector/src/connector/.

[amitroy-thedev]

Hey @swangi-kumari @gorakhnathy7 @ImSagnik007 @deepanshu-iiitu @SanchithHegde i have refactored amount conversion would you please review it..

[gorakhnathy7]

Hey @amitroy-thedev Thanks for being so prompt here, we will soon do the review and share feedback, if any.

[amitroy-thedev]

@gorakhnathy7 Okay 🙂