Receiving request to update shipping details of an active order and sending the updated order with payment terms (Java)
In this use case, the user sometimes updates the shipping details of the order after the order has been placed. Usually, a seller does not allow the user to update the shipping details, but in case it does, there can be additional shipping charges that may be levied on the user that needs to be paid either before or after the fulfillment. In case, the seller does not allow changing the shipping details, the user is expected to cancel the order and place a fresh order with the new shipping details.
Code snippets
BPP receives protocol update
/*
Example Request JSON:
{
"context": {
"domain": "local_retail",
"country": "IND",
"city": "std:080",
"action": "update",
"core_version": "0.9.2",
"bap_id": "https://mock_bap.com/",
"bap_uri": "https://mock_bap.com/beckn/",
"transaction_id": "1239890342",
"message_id": "123793824",
"timestamp": "2021-06-23T07:33:02.655Z"
},
"message": {
"update_target": "fulfillment",
"order": {
"provider": {
"id": "pooja-stores",
"locations": [
{
"id": "pooja-stores.koramangala"
}
]
},
"items": [
{
"id": "item_1",
"quantity": {
"count": 1
}
},
{
"id": "item_4",
"quantity": {
"count": 2
}
}
],
"billing": {
"name": "Jane Doe",
"address": {
"door": "21B",
"name": "EFG Apartments",
"locality": "Electronic City",
"city": "Bengaluru",
"state": "Karnataka",
"country": "India",
"area_code": "560104"
},
"email": "[email protected]",
"phone": "+919777543210"
},
"fulfillment": {
"type": "home-delivery",
"tracking": false,
"start": {
"location": {
"id": "./retail.kirana/ind.blr/[email protected]_location",
"descriptor": {
"name": "Pooja Stores"
},
"gps": "12.9349377,77.6055586"
},
"time": {
"range": {
"start": "2021-06-15T07:09:30.000Z",
"end": "2021-06-15T07:10:30.000Z"
}
},
"instructions": {
"name": "pick up instructions",
"short_desc": "Provide the order id"
},
"contact": {
"phone": "+919999999999",
"email": "[email protected]"
}
},
"end": {
"location": {
"gps": "12.835407, 77.662524",
"address": {
"door": "21B",
"name": "EFG Apartments",
"locality": "Electronic City",
"city": "Bengaluru",
"state": "Karnataka",
"country": "India",
"area_code": "560104"
}
},
"time": {
"range": {
"start": "2021-06-15T07:11:36.212Z",
"end": "2021-06-15T07:12:36.212Z"
}
},
"instructions": {
"name": "drop off instructions",
"short_desc": "Leave at door step"
},
"contact": {
"phone": "+919777543210",
"email": "[email protected]"
}
}
},
"quote": {
"price": {
"currency": "INR",
"value": "180"
},
"breakup": [
{
"title": "Brown Bread 400 gm",
"price": {
"currency": "INR",
"value": "40"
}
},
{
"title": "Good Life Toned Milk 1L",
"price": {
"currency": "INR",
"value": "120"
}
}
],
"ttl": "P4D"
},
"payment": {
"uri": "https://api.bpp.com/pay?amt=$amount&txn_id=ksh87yriuro34iyr3p4&mode=upi&vpa=bpp@upi",
"tl_method": "http/get",
"params": {
"transaction_id": "ksh87yriuro34iyr3p4",
"amount": "180",
"mode": "upi",
"vpa": "bpp@upi"
},
"type": "ON-ORDER",
"status": "PAID"
},
"created_at": "2021-06-23T07:33:02.655Z",
"updated_at": "2021-06-23T07:33:02.655Z"
}
}
}
*/
// BPP Update Endpoint
@PostMapping("/bpp/update")
public ResponseEntity update(
@RequestHeader HttpHeaders headers,
@RequestBody UpdateRequest request) {
var response = bppApplicationService.update(request, headers);
return ResponseEntity.ok(response);
}BPP processes the update
public Response update(UpdateRequest request, HttpHeaders headers) {
var onUpdateRequest = new OnUpdateRequest();
// Validate the headers
var isHeadersValid = validateHeaders(headers);
// Construct and return error
if (!isHeadersValid) return null;
// Update the given order
var updateOrder = request.getMessage().getOrder();
// Execute business logic here
// Generate the response
onUpdateRequest = generateUpdatedOrderResponse(updateOrder);
//invoke on_update api
return invokeOnUpdate(onUpdateRequest, headers);
}
}BPP generates response
/*
Example Response JSON:
{
"context": {
"domain": "local_retail",
"country": "IND",
"city": "std:080",
"action": "on_update",
"core_version": "0.9.2",
"bap_id": "https://mock_bap.com/",
"bap_uri": "https://mock_bap.com/beckn/",
"transaction_id": "1239890342",
"message_id": "123793824",
"timestamp": "2021-06-23T07:33:02.655Z"
},
"message": {
"order": {
"id":"298310283",
"state":"Order placed",
"provider": {
"id": "pooja-stores",
"locations": [
{
"id": "pooja-stores.koramangala"
}
]
},
"items": [
{
"id": "item_1",
"quantity": {
"count": 1
}
},
{
"id": "item_4",
"quantity": {
"count": 2
}
}
],
"billing": {
"name": "Jane Doe",
"address": {
"door": "21B",
"name": "EFG Apartments",
"locality": "Electronic City",
"city": "Bengaluru",
"state": "Karnataka",
"country": "India",
"area_code": "560104"
},
"email": "[email protected]",
"phone": "+919777543210",
"created_at": "2021-06-15T07:08:36.211Z",
"updated_at": "2021-06-15T07:08:36.211Z"
},
"fulfillment": {
"type": "home-delivery",
"tracking": false,
"start": {
"location": {
"id": "pooja-stores.koramangala",
"descriptor": {
"name": "Pooja Stores"
},
"gps": "12.9349377,77.6055586"
},
"time": {
"range": {
"start": "2021-06-15T07:09:30.000Z",
"end": "2021-06-15T07:10:30.000Z"
}
},
"instructions": {
"name": "pick up instructions",
"short_desc": "Provide the order id"
},
"contact": {
"phone": "+919999999999",
"email": "[email protected]"
}
},
"end": {
"location": {
"gps": "12.835407, 77.662524",
"address": {
"door": "21B",
"name": "EFG Apartments",
"locality": "Electronic City",
"city": "Bengaluru",
"state": "Karnataka",
"country": "India",
"area_code": "560104"
}
},
"time": {
"range": {
"start": "2021-06-15T07:11:36.212Z",
"end": "2021-06-15T07:12:36.212Z"
}
},
"instructions": {
"name": "drop off instructions",
"short_desc": "Leave at door step"
},
"contact": {
"phone": "+919777543210",
"email": "[email protected]"
}
}
},
"quote": {
"price": {
"currency": "INR",
"value": "180"
},
"breakup": [
{
"title": "Brown Bread 400 gm",
"price": {
"currency": "INR",
"value": "40"
}
},
{
"title": "Good Life Toned Milk 1L",
"price": {
"currency": "INR",
"value": "120"
}
}
],
"ttl": "P4D"
},
"payment": {
"uri": "https://api.bpp.com/pay?amt=$amount&txn_id=ksh87yriuro34iyr3p4&mode=upi&vpa=bpp@upi",
"tl_method": "http/get",
"params": {
"transaction_id": "ksh87yriuro34iyr3p4",
"amount": "40",
"mode": "upi",
"vpa": "bpp@upi"
},
"type": "ON-ORDER",
"status": "PAID"
},
"created_at": "2021-06-23T07:33:02.655Z",
"updated_at": "2021-06-23T07:33:02.655Z"
}
}
}
*/
public OnUpdateRequest generateUpdatedOrderResponse(UpdatedOrderDetails updatedDetails) {
var updatedResult = UpdateResponseBuilder.builder.result(updateingDetails).build();
// Convert response into protocol object similar to example above
return updatedResult;
}
BPP calls protocol on_update
public Response invokeOnUpdate(OnUpdateRequest updateResponse, HttpHeaders headers) {
if(updateResponse.getError() == null) {
// Call BAP on_update api with the order response
// Call to look up function which returns the the public key and BAP Endpoint to be called
var url = lookUp(headers);
var response = apiClient.post(url[0] + Context.ActionEnum.on_update,
constructResponseHeaders(),
updateResponse,
OnUpdateRequest.class);
return Response.of("ACK", null);
} else {
return Response.of("NACK", null);
}
}