feat: Added new api's to customers

documents/customer.md

@@ -146,6 +146,250 @@ instance.customers.fetch(customerId)
 }
 ```
 
+-------------------------------------------------------------------------------------------------------
+
+### Add Bank Account of Customer
+
+```js
+var customerId = "cust_N5mywh91sXB69O"
+
+instance.customers.addBankAccount(customerId, {
+    "ifsc_code" : "UTIB0000194",
+    "account_number"         :"916010082985661",
+    "beneficiary_name"      : "Pratheek",
+    "beneficiary_address1"  : "address 1",
+    "beneficiary_address2"  : "address 2",
+    "beneficiary_address3"  : "address 3",
+    "beneficiary_address4"  : "address 4",
+    "beneficiary_email"     : "[email protected]",
+    "beneficiary_mobile"    : "8762489310",
+    "beneficiary_city"      :"Bangalore",
+    "beneficiary_state"     : "KA",
+    "beneficiary_country"   : "IN"
+});
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*  | string      | Customer's bank account number  |
+| account_number  | integer      | The id of the customer to be fetched  |
+| account_number | string      | The name of the beneficiary associated with the bank account.  |
+| beneficiary_name | string  | The virtual payment address.  |
+| beneficiary_address1 | string      | The id of the customer to be fetched  |
+| beneficiary_email  | string      | Email address of the beneficiary.  |
+| beneficiary_mobile | integer      | Mobile number of the beneficiary.  |
+| beneficiary_city  | string      | The name of the city of the beneficiary.  |
+| beneficiary_state | string      | The state of the beneficiary.  |
+| beneficiary_pin   | interger    | The pin code of the beneficiary's address.  |
+| ifsc_code          | string      | The IFSC code of the bank branch associated with the account.  |
+
+**Response:**
+```json
+{
+  "id" : "cust_1Aa00000000001",
+  "entity": "customer",
+  "name" : "Saurav Kumar",
+  "email" : "[email protected]",
+  "contact" : "+919000000000",
+  "gstin":"29XAbbA4369J1PA",
+  "notes" : [],
+  "created_at ": 1234567890
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Delete Bank Account of Customer
+
+```js
+var customerId = "cust_N5mywh91sXB69O"
+
+var bankAccountId = "ba_N6aM8uo64IzxHu"
+
+instance.customers.deleteBankAccount(customerId, bankAccountId);
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*  | string      | Customer's bank account number  |
+| bank_id  | string      | The bank_id that needs to be deleted.  |
+
+**Response:**
+```json
+{
+    "id": "ba_Evg09Ll05SIPSD",
+    "ifsc": "ICIC0001207",
+    "bank_name": "ICICI Bank",
+    "name": "Test R4zorpay",
+    "account_number": "XXXXXXXXXXXXXXX0434",
+    "status": "deleted"
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Eligibility Check API
+
+```js
+instance.customers.requestEligibilityCheck({
+    "inquiry": "affordability",
+    "amount": 500000,
+    "currency": "INR",
+    "customer": {
+        "id": "cust_KhP5dO1dKmc0Rm",
+        "contact": "+918220276214",
+        "ip": "105.106.107.108",
+        "referrer": "https://merchansite.com/example/paybill",
+        "user_agent": "Mozilla/5.0"
+    }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| inquiry  | string      | List of methods or instruments on which eligibility check is required. Possible value is `affordability`.  |
+| amount*  | string      | The amount for which the order was created, in currency subunits. For example, for an amount of ₹295, enter `29500`.   |
+| currency*  | string      | Possible value is `INR`. |
+| customer  | object      | All keys listed [here](https://razorpay.com/docs/payments/payment-gateway/affordability/eligibility-check/#request-parameters) are supported |
+| instruments  | object      | All keys listed [here](https://razorpay.com/docs/payments/payment-gateway/affordability/eligibility-check/#request-parameters) are supported |
+
+**Response:**
+```json
+{
+  "amount": "500000",
+  "customer": {
+    "id": "KkBhM9EC1Y0HTm",
+    "contact": "+918220722114"
+  },
+  "instruments": [
+    {
+      "method": "emi",
+      "issuer": "HDFC",
+      "type": "debit",
+      "eligibility_req_id": "elig_KkCNLzlNeMYQyZ",
+      "eligibility": {
+        "status": "eligible"
+      }
+    },
+    {
+      "method": "paylater",
+      "provider": "getsimpl",
+      "eligibility_req_id": "elig_KkCNLzlNeMYQyZ",
+      "eligibility": {
+        "status": "eligible"
+      }
+    },
+    {
+      "method": "paylater",
+      "provider": "icic",
+      "eligibility_req_id": "elig_KkCNLzlNeMYQyZ",
+      "eligibility": {
+        "status": "eligible"
+      }
+    },
+    {
+      "method": "cardless_emi",
+      "provider": "walnut369",
+      "eligibility_req_id": "elig_KkCNLzlNeMYQyZ",
+      "eligibility": {
+        "status": "ineligible",
+        "error": {
+          "code": "GATEWAY_ERROR",
+          "description": "The customer has not been approved by the partner.",
+          "source": "business",
+          "step": "inquiry",
+          "reason": "user_not_approved"
+        }
+      }
+    },
+    {
+      "method": "cardless_emi",
+      "provider": "zestmoney",
+      "eligibility_req_id": "elig_KkCNLzlNeMYQyZ",
+      "eligibility": {
+        "status": "ineligible",
+        "error": {
+          "code": "GATEWAY_ERROR",
+          "description": "The customer has exhausted their credit limit.",
+          "source": "business",
+          "step": "inquiry",
+          "reason": "credit_limit_exhausted"
+        }
+      }
+    },
+    {
+      "method": "paylater",
+      "provider": "lazypay",
+      "eligibility_req_id": "elig_KkCNLzlNeMYQyZ",
+      "eligibility": {
+        "status": "ineligible",
+        "error": {
+          "code": "GATEWAY_ERROR",
+          "description": "The order amount is less than the minimum transaction amount.",
+          "source": "business",
+          "step": "inquiry",
+          "reason": "min_amt_required"
+        }
+      }
+    }
+  ]
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch Eligibility by id
+
+```js
+var eligibilityId = 'elig_F1cxDoHWD4fkQt'
+instance.customers.fetchEligibility(eligibilityId);
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*  | string      | Customer's bank account number  |
+| bank_id  | string      | The bank_id that needs to be deleted.  |
+
+**Response:**
+```json
+{
+  "instruments": [
+    {
+      "method": "paylater",
+      "provider": "lazypay",
+      "eligibility_req_id": "elig_LBwGKVvS2X48Lq",
+      "eligibility": {
+        "status": "eligible"
+      }
+    },
+    {
+      "method": "paylater",
+      "provider": "getsimpl",
+      "eligibility_req_id": "elig_LBwGKVvS2X48Lq",
+      "eligibility": {
+        "status": "ineligible",
+        "error": {
+          "code": "GATEWAY_ERROR",
+          "description": "The customer has exhausted their credit limit",
+          "source": "gateway",
+          "step": "inquiry",
+          "reason": "credit_limit_exhausted"
+        }
+      }
+    }
+  ]
+}
+```
+
+
 -------------------------------------------------------------------------------------------------------
 
 **PN: * indicates mandatory fields**

lib/resources/customers.js

@@ -53,6 +53,32 @@ module.exports = function (api) {
       return api.delete({
         url: `/customers/${customerId}/tokens/${tokenId}`
       }, callback)
+    },
+
+    addBankAccount(customerId, params ,callback) {
+     return api.post({
+       url: `/customers/${customerId}/bank_account`,
+       data: params
+     }, callback)
+    },
+
+    deleteBankAccount(customerId, bankId ,callback) {
+      return api.delete({
+        url: `/customers/${customerId}/bank_account/${bankId}`
+      }, callback)
+    },
+
+    requestEligibilityCheck(params ,callback) {
+      return api.post({
+        url: `/customers/eligibility`,
+        data: params
+      }, callback)
+    },
+
+    fetchEligibility(eligibilityId, callback) {
+      return api.get({
+        url: `/customers/eligibility/${eligibilityId}`,
+      }, callback)
     }
   }
 }