Not receiving Postback when an order is updated.

ZG1370

Hi,
I went through the postback API in which it is mentioned whenever any order is either cancelled or completed,
A registered postback will be called. I am getting HEAD request with the registered url not the POST request.
Can you help me into this asap?

Thanks
Rajesh Sharma.

sujith

Hi Rajesh Sharma,
The JSON payload is posted as a raw HTTP POST body.
You will have to read the raw body and then decode it.
The checksum is SHA-256 hash of order_id + timestamp + api_secret

You can check out example here.

ZG1370

Hi Sujith,

For example, if i register postback call as "https://example.com/api/v2/postback". According to previous example logs should be available at "https://example.com/api/v2/postback/". But i am not able to see the logs. So from where i can see the logs for the day?

Thanks.

sujith

Are you sure you are reading body after you get request?

ZG1370

I am getting only HEAD request. So can you elaborate how postback works? Means Why i am getting only HEAD request not POST?

tonystark

Hi @ZG1370,

Can you give us more details like how you set up your postback URL? Which language are you using? How you identified the request as HEAD?

ZG1370

Hi ajinasokan,

This is my implemented java code.

{code}
@PostMapping("/api/v2/aggregators/postbackorders")
    public ResponseEntity<?> getOrderStatusFromZerodha(@RequestBody ZerodhaOrderPostbackResponse response) {
}

Here is response that i am expecting JSON payload:
public class ZerodhaOrderPostbackResponse {
	@JsonProperty("order_id")
	private String orderId;
	@JsonProperty("exchange_order_id")
	private String exchangeOrderId;
	@JsonProperty("placed_by")
	private String placedBy;
	@JsonProperty("status")
	private String status;
	@JsonProperty("status_message")
	private String statusMessage;
	@JsonProperty("tradingsymbol")
	private String tradingsymbol;
	@JsonProperty("exchange")
	private String exchange;
	@JsonProperty("order_type")
	private String orderType;
	@JsonProperty("transaction_type")
	private String transactionType;
	@JsonProperty("validity")
	private String validity;
	@JsonProperty("product")
	private String product;
	@JsonProperty("average_price")
	private Double averagePrice;
	@JsonProperty("price")
	private Double price;
	@JsonProperty("quantity")
	private Integer quantity;
	@JsonProperty("filled_quantity")
	private Integer filledQuantity;
	@JsonProperty("unfilled_quantity")
	private Integer unfilledQuantity;
	@JsonProperty("trigger_price")
	private Double triggerPrice;
	@JsonProperty("user_id")
	private String userId;
	@JsonProperty("order_timestamp")
	private String orderTimestamp;
	@JsonProperty("exchange_timestamp")
	private String exchangeTimestamp;
	@JsonProperty("checksum")
	private String checksum;
}

tonystark

Hi @ZG1370,

This code looks fine. How you came to a conclusion that you are getting a HEAD request?

ZG1370

Hi ajinasokan,

I did check in apache tomcat. The same service was hit with a head request.