feat(core): [Paypal] Add session_token flow for Paypal sdk

[SamraatBansal]

Type of Change

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

Description

Add session_token flow to enable Paypal via Paypal SDK

• Accept data in metadata field of the MCA - create call
• Return that data in the sessions call
• Change payment_experience for paypal via paypal to sdk

Additional Changes

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

Motivation and Context

#4698

How did you test it?

Create Paypal MCA with payment_experience as invoke_sdk_client for Paypal Wallet

curl --location 'http://localhost:8080/account/merchant_1716757295/connectors' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'api-key: test_admin' \
--data '{
    "connector_type": "fiz_operations",
    "business_country": "US",
    
    "connector_name": "paypal",
    "connector_account_details": {
        "auth_type": "BodyKey",
        "api_key": "********************************",
        "key1": "ASK*****************************_2"
    },
    "test_mode": true,
    "disabled": false,
"payment_methods_enabled": [
        {
            "payment_method": "card",
            "payment_method_types": [
                {
                    "payment_method_type": "credit",
                    "payment_experience": null,
                    "card_networks": [
                        "Visa",
                        "Mastercard"
                    ],
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 0,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "debit",
                    "payment_experience": null,
                    "card_networks": [
                        "Visa",
                        "Mastercard"
                    ],
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "wallet",
            "payment_method_types": [
                {
                    "payment_method_type": "paypal",
                    "payment_experience": "invoke_sdk_client",
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        }
    ],
    "metadata": {
        "paypal_sdk": {
            "client_id": "ASK****************************_2"
        }
    }
}'

Payments Create

curl --location 'http://localhost:8080/payments' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--header 'api-key: dev_33Ad6faEcusLrqrqSeeFWyGRyTfOkKMoPMTSirAhCg0qqwkxQ25t7K1ucBEoq26M' \
--data-raw '{
    "amount": 6100,
    "currency": "USD",
    "confirm": false,
    "business_country": "US",
    "business_label": "default",
    "amount_to_capture": 6100,
    "capture_method": "automatic",
    "capture_on": "2022-09-10T10:11:12Z",
    "return_url": "https://google.com",
    "email": "something@gmail.com",
    "name": "Joseph Doe",
    "phone": "999999999",
    "phone_country_code": "+65",
    "description": "Its my first payment request",
    "statement_descriptor_name": "Juspay",
    "statement_descriptor_suffix": "Router",
    "billing": {
        "address": {
            "line1": "1467",
            "line2": "Harrison Street",
            "line3": "Harrison Street",
            "city": "San Fransico",
            "state": "California",
            "zip": "94122",
            "country": "US",
            "first_name": "joseph",
            "last_name": "Doe"
        },
        "phone": {
            "number": "8056594427",
            "country_code": "+91"
        }
    }
}'

Session Token

curl --location 'http://localhost:8080/payments/session_tokens' \
--header 'Content-Type: application/json' \
--header 'api-key: pk_dev_77ee3a2eb65741a0a4a3f1f6f3f0aa94' \
--data '{
    "payment_id": "pay_msQQCSrBSCeNAZjBgwj9",
    "client_secret": "pay_msQQCSrBSCeNAZjBgwj9_secret_JdfpEbRZl5KTYwtNCURW",
    "wallets": []
}'

Response

{
    "payment_id": "pay_msQQCSrBSCeNAZjBgwj9",
    "client_secret": "pay_msQQCSrBSCeNAZjBgwj9_secret_JdfpEbRZl5KTYwtNCURW",
    "session_token": [
        {
            "wallet_name": "paypal",
            "connector": "paypal",
            "session_token": "ASK************************_2",
            "sdk_next_action": {
                "next_action": "confirm"
            }
        }
    ]
}

Payments - Confirm

curl --location 'http://localhost:8080/payments/pay_msQQCSrBSCeNAZjBgwj9/confirm' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'api-key: dev_33Ad6faEcusLrqrqSeeFWyGRyTfOkKMoPMTSirAhCg0qqwkxQ25t7K1ucBEoq26M' \
--data '{
    "confirm": true,
    "payment_method": "wallet",
    "payment_method_type": "paypal",
    "payment_method_data": {
        "wallet": {
            "paypal_sdk": {
            "token":""
            }
        }
    }  
}'

Response:

{
    "payment_id": "pay_msQQCSrBSCeNAZjBgwj9",
    "merchant_id": "merchant_1716757295",
    "status": "requires_customer_action",
    "amount": 6100,
    "net_amount": 6100,
    "amount_capturable": 6100,
    "amount_received": null,
    "connector": "paypal",
    "client_secret": "pay_msQQCSrBSCeNAZjBgwj9_secret_JdfpEbRZl5KTYwtNCURW",
    "created": "2024-05-26T21:03:19.068Z",
    "currency": "USD",
    "customer_id": null,
    "customer": null,
    "description": "Its my first payment request",
    "refunds": null,
    "disputes": null,
    "mandate_id": null,
    "mandate_data": null,
    "setup_future_usage": null,
    "off_session": null,
    "capture_on": null,
    "capture_method": "automatic",
    "payment_method": "wallet",
    "payment_method_data": {
        "wallet": {},
        "billing": null
    },
    "payment_token": null,
    "shipping": null,
    "billing": {
        "address": {
            "city": "San Fransico",
            "country": "US",
            "line1": "1467",
            "line2": "Harrison Street",
            "line3": "Harrison Street",
            "zip": "94122",
            "state": "California",
            "first_name": "joseph",
            "last_name": "Doe"
        },
        "phone": {
            "number": "8056594427",
            "country_code": "+91"
        },
        "email": null
    },
    "order_details": null,
    "email": null,
    "name": null,
    "phone": null,
    "return_url": "https://google.com/",
    "authentication_type": "no_three_ds",
    "statement_descriptor_name": "Juspay",
    "statement_descriptor_suffix": "Router",
    "next_action": {
        "type": "invoke_sdk_client",
        "next_action_data": {
            "next_action": "complete_authorize"
        }
    },
    "cancellation_reason": null,
    "error_code": null,
    "error_message": null,
    "unified_code": null,
    "unified_message": null,
    "payment_experience": null,
    "payment_method_type": "paypal",
    "connector_label": "paypal_US_default",
    "business_country": "US",
    "business_label": "default",
    "business_sub_label": null,
    "allowed_payment_method_types": null,
    "ephemeral_key": null,
    "manual_retry_allowed": null,
    "connector_transaction_id": "39X68391D53803705",
    "frm_message": null,
    "metadata": null,
    "connector_metadata": {
        "apple_pay": null,
        "airwallex": null,
        "noon": {
            "order_category": "pay"
        }
    },
    "feature_metadata": null,
    "reference_id": "pay_msQQCSrBSCeNAZjBgwj9_1",
    "payment_link": null,
    "profile_id": "pro_L6gjuuDhzdKR9wlyV8yA",
    "surcharge_details": null,
    "attempt_count": 1,
    "merchant_decision": null,
    "merchant_connector_id": "mca_ziKihOYd8bxdqpoLhP3u",
    "incremental_authorization_allowed": null,
    "authorization_count": null,
    "incremental_authorizations": null,
    "external_authentication_details": null,
    "external_3ds_authentication_attempted": false,
    "expires_on": "2024-05-26T21:18:19.068Z",
    "fingerprint": null,
    "browser_info": {
        "language": null,
        "time_zone": null,
        "ip_address": "::1",
        "user_agent": null,
        "color_depth": null,
        "java_enabled": null,
        "screen_width": null,
        "accept_header": null,
        "screen_height": null,
        "java_script_enabled": null
    },
    "payment_method_id": null,
    "payment_method_status": null,
    "updated": "2024-05-26T21:06:09.286Z",
    "charges": null,
    "frm_metadata": null
}

Authenticate Payment via SDK

Payments - Complete Authorize

curl --location 'http://localhost:8080/payments/pay_msQQCSrBSCeNAZjBgwj9/complete_authorize' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'api-key: pk_dev_77ee3a2eb65741a0a4a3f1f6f3f0aa94' \
--data-raw '{
  "shipping": {
        "address": {
            "line1": "1467",
            "line2": "Kormangala",
            "line3": "Harrison Street",
            "city": "San Fransico",
            "state": "California",
            "zip": "94122",
            "country": "US",
            "first_name": "PiX"
        },
        "phone": {
            "number": "8056594427",
            "country_code": "+91"
        },
        "email": "guest@example.com"
    },
    "client_secret": "pay_msQQCSrBSCeNAZjBgwj9_secret_JdfpEbRZl5KTYwtNCURW"
}'

Test Scenarios

• Test all the payments flow: Authorize, Manual Capture, Auto Capture, Refunds and webhooks
• Test for backwards compatibility: i.e use an older account where redirect_to_url is configured as payment_experience none of the flow should get affected by new code
• Update the connector account to SDK experience and then sync older payments and try new payments as well

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

[Narayanbhat166]

Can you add api contracts foe each of the api calls?