feat(routing): Add support to update config for elimination routing

[spritianeja03]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

Add a new route for updating the elimination routing config when it is toggled

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

This PR closes #7939

How did you test it?

1. Toggle elimination routing
   request

curl --location --request POST 'http://localhost:8080/account/merchant_174600xxxx/business_profile/pro_h9ecR6baV3b1eDvfxxxB/dynamic_routing/elimination/toggle?enable=metrics' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'api-key: dev_YWu8PFM4pqgBjknNsvHimHsB*******'

response

{
    "id": "routing_yfRG8iqWlBreVTVlnYwB",
    "profile_id": "pro_h9ecR6baV3b1eDvfxxxB",
    "name": "Elimination based dynamic routing algorithm",
    "kind": "dynamic",
    "description": "",
    "created_at": 1746007881,
    "modified_at": 1746007881,
    "algorithm_for": "payment"
}

2. Update elimination routing config
   request

curl --location --request PATCH 'http://localhost:8080/account/merchant_174600xxxx/business_profile/pro_h9ecR6baV3b1eDvfxxxB/dynamic_routing/elimination/config/routing_yfRG8iqWlBreVTVlxxxB' \
--header 'api-key: dev_YWu8PFM4pqgBjknNsvHimHsBW1O9CBVy3*******' \
--header 'Content-Type: application/json' \
--data '{
  "params": [
    "Currency",
    "CardBin",
    "Country",
    "PaymentMethod",
    "PaymentMethodType",
    "AuthenticationType",
    "CardNetwork"
  ]
}'

response

{
    "id": "routing_YYu14QIGKRrWgJ8QllpR",
    "profile_id": "pro_h9ecR6baV3b1eDvfxxxB",
    "name": "Elimination based dynamic routing algorithm",
    "kind": "dynamic",
    "description": "",
    "created_at": 1746008246,
    "modified_at": 1746008246,
    "algorithm_for": "payment"
}

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
crates/router/src/routes/app.rs	63% smaller
crates/api_models/src/events/routing.rs	55% smaller
crates/router/src/core/routing.rs	16% smaller
crates/api_models/src/routing.rs	0% smaller
crates/router/src/routes/routing.rs	0% smaller

[Chethan-rao]

move this to the top

[Chethan-rao]

can we add algo_type as attribute to get the count of updates of specific algo
cc: @prajjwalkumar17

[prajjwalkumar17]

Yes can be made as an attribute, but the RoutingAlgorithmKind we use in RoutingAlgorithm table has type as DyanamicAlgorithm, we can create an enum something like DynamicRoutingAlgorithmKind which will have types as SuccessBasedRoutingAlgorithm, EliminationAlgorithm, ContractRoutingAlgorithm and this can be used only to fill the respective metric's attributes in the respective function calls, no DB changes required only assign the enum in function and add to metrics call, this needs to be done for all the dynamic routing functions for create as well as update.

cc: @spritianeja03

[Chethan-rao]

Suggested change

	let _ = cache::redact_from_redis_and_publish(
	state.store.get_cache_store().as_ref(),
	cache_entries_to_redact,
	)
	.await
	.map_err(|e| logger::error!("unable to publish into the redact channel for evicting the elimination routing config cache {e:?}"));
	cache::redact_from_redis_and_publish(
	state.store.get_cache_store().as_ref(),
	cache_entries_to_redact,
	)
	.await
	.map_err(|e| logger::error!("unable to publish into the redact channel for evicting the elimination routing config cache {e:?}")).ok();

[Chethan-rao]

Suggested change

	message: "Failed to invalidate the routing keys".to_string(),
	message: "Failed to invalidate the elimination routing keys".to_string(),

[Chethan-rao]

This is not GenericNotFoundError error. all other algo's update handler too has this error mapped to GenericNotFoundError. please change it in other update flows as well