Pascal (Lazarus/Delphi)
Pascal (Lazarus/Delphi)
Amazon SP-API Get Order Items
See more Amazon SP-API Examples
Returns detailed order item information for the order that you specify.Chilkat Pascal (Lazarus/Delphi) Downloads
program ChilkatDemo;
// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SysUtils,
CkDllLoader,
Chilkat.AuthAws,
Chilkat.Rest,
Chilkat.JsonObject,
Chilkat.StringBuilder;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
orderId: string;
authAws: TAuthAws;
jsonLwaToken: TJsonObject;
rest: TRest;
lwa_token: string;
sbPath: TStringBuilder;
jsonRc: TJsonObject;
sbRequest: TStringBuilder;
sbResponse: TStringBuilder;
uri: string;
statusCode: Integer;
jsonResp: TJsonObject;
restrictedDataToken: string;
json: TJsonObject;
ASIN: string;
OrderItemId: string;
SellerSKU: string;
Title: string;
QuantityOrdered: Integer;
QuantityShipped: Integer;
NumberOfItems: Integer;
CurrencyCode: string;
Amount: string;
ItemTaxCurrencyCode: string;
ItemTaxAmount: string;
PromotionDiscountCurrencyCode: string;
PromotionDiscountAmount: string;
IsGift: Boolean;
ConditionId: string;
ConditionSubtypeId: string;
IsTransparency: Boolean;
SerialNumberRequired: Boolean;
IossNumber: string;
DeemedResellerCategory: string;
StoreChainStoreId: string;
IsBuyerRequestedCancel: Boolean;
BuyerCancelReason: string;
AmazonOrderId: string;
i: Integer;
count_i: Integer;
begin
success := False;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Gets detailed order item information for a specified order ID
// The order ID is something like "902-1845936-5435065" and it is the AmazonOrderId returned in the JSON when getting the list of orders. For example:
// {
// "payload": {
// "CreatedBefore": "1.569521782042E9",
// "Orders": [
// {
// "AmazonOrderId": "902-1845936-5435065",
// "PurchaseDate": "1970-01-19T03:58:30Z",
// ...
// However, when using the sandbox, instead use the explicit keyword TEST_CASE_200
orderId := 'TEST_CASE_200';
authAws := TAuthAws.Create;
authAws.AccessKey := 'AWS_ACCESS_KEY';
authAws.SecretKey := 'AWS_SECRET_KEY';
authAws.ServiceName := 'execute-api';
// Use the region that is correct for your needs.
authAws.Region := 'eu-west-1';
// First get a restricted data token for the given order ID.
// This requires an LWA access token which cannot be more than 1 hour old.
// See Fetch SP-API LWA Access Token
jsonLwaToken := TJsonObject.Create;
success := jsonLwaToken.LoadFile('qa_data/tokens/sp_api_lwa_token.json');
if (success = False) then
begin
WriteLn('Failed to load LWA access token.');
Exit;
end;
// Must use the non-sandbox domain for getting the RDT.
rest := TRest.Create;
success := rest.Connect('sellingpartnerapi-eu.amazon.com',443,True,True);
if (success = False) then
begin
WriteLn(rest.LastErrorText);
Exit;
end;
success := rest.SetAuthAws(authAws);
// Add the x-amz-access-token request header.
lwa_token := jsonLwaToken.StringOf('access_token');
rest.ClearAllHeaders();
rest.AddHeader('x-amz-access-token',lwa_token);
// We're going to send a POST with the following JSON body:
// {
// "restrictedResources": [
// {
// "method": "GET",
// "path": "/orders/v0/orders/{orderId}/orderItems",
// "dataElements": ["buyerInfo"]
// }
// ]
// }
sbPath := TStringBuilder.Create;
sbPath.Append('/orders/v0/orders/');
sbPath.Append(orderId);
sbPath.Append('/orderItems');
jsonRc := TJsonObject.Create;
jsonRc.UpdateString('restrictedResources[0].method','GET');
jsonRc.UpdateString('restrictedResources[0].path',sbPath.GetAsString());
jsonRc.UpdateString('restrictedResources[0].dataElements[0]','buyerInfo');
sbRequest := TStringBuilder.Create;
jsonRc.EmitSb(sbRequest);
sbResponse := TStringBuilder.Create;
uri := '/tokens/2021-03-01/restrictedDataToken';
success := rest.FullRequestSb('POST',uri,sbRequest,sbResponse);
if (success = False) then
begin
WriteLn(rest.LastErrorText);
Exit;
end;
// Examine the response status.
statusCode := rest.ResponseStatusCode;
if (statusCode <> 200) then
begin
WriteLn('Response status code: ' + statusCode);
WriteLn('Response status text: ' + rest.ResponseStatusText);
WriteLn('Response body: ');
WriteLn(sbResponse.GetAsString());
WriteLn('Failed.');
Exit;
end;
// Get the restricted data token.
jsonResp := TJsonObject.Create;
jsonResp.LoadSb(sbResponse);
restrictedDataToken := jsonResp.StringOf('restrictedDataToken');
WriteLn('Restricted Data Token: ' + restrictedDataToken);
// ------------------------------------------------------------------------------------------------------------
// ------------------------------------------------------------------------------------------------------------
// Now that we have the RDT, we can use it to get information about the order.
//
// Yes, the SP-API is horribly tedious and painful. You must use an RDT specifically tailored to each request requiring an RDT,
// the RDT must not be over an hour old, and if you need to get a new RDT you must get it using an LWA token that itself is not
// more than an hour old. If the LWA is more than an hour old, you must get a new one. Ughhh!!!!!
// ------------------------------------------------------------------------------------------------------------
// Disconnect from the non-sandbox domain. This example will use the sandbox.
// (The RDT was obtained using the non-sandbox domain. For some reason, the sandbox domain does not work for getting the RDT.)
rest.Disconnect(100);
success := rest.Connect('sandbox.sellingpartnerapi-eu.amazon.com',443,True,True);
if (success = False) then
begin
WriteLn(rest.LastErrorText);
Exit;
end;
success := rest.SetAuthAws(authAws);
rest.ClearAllHeaders();
rest.AddHeader('x-amz-access-token',restrictedDataToken);
rest.ClearAllQueryParams();
rest.AddQueryParam('MarketplaceIds','ATVPDKIKX0DER');
rest.ClearAllPathParams();
rest.AddPathParam('{orderId}',orderId);
uri := '/orders/v0/orders/{orderId}/orderItems';
success := rest.FullRequestNoBodySb('GET',uri,sbResponse);
if (success = False) then
begin
WriteLn(rest.LastErrorText);
Exit;
end;
// Examine the response status.
statusCode := rest.ResponseStatusCode;
if (statusCode <> 200) then
begin
WriteLn('Response status text: ' + rest.ResponseStatusText);
WriteLn('Response body: ');
WriteLn(sbResponse.GetAsString());
WriteLn('Failed.');
Exit;
end;
// If successful, gets a JSON response such as the following:
// {
// "payload": {
// "AmazonOrderId": "902-1845936-5435065",
// "OrderItems": [
// {
// "ASIN": "B00551Q3CS",
// "OrderItemId": "05015851154158",
// "SellerSKU": "NABetaASINB00551Q3CS",
// "Title": "B00551Q3CS [Card Book]",
// "QuantityOrdered": 1,
// "QuantityShipped": 0,
// "ProductInfo": {
// "NumberOfItems": 1
// },
// "ItemPrice": {
// "CurrencyCode": "USD",
// "Amount": "10.00"
// },
// "ItemTax": {
// "CurrencyCode": "USD",
// "Amount": "1.01"
// },
// "PromotionDiscount": {
// "CurrencyCode": "USD",
// "Amount": "0.00"
// },
// "IsGift": false,
// "ConditionId": "New",
// "ConditionSubtypeId": "New",
// "IsTransparency": false,
// "SerialNumberRequired": false,
// "IossNumber": "",
// "DeemedResellerCategory": "IOSS",
// "StoreChainStoreId": "ISPU_StoreId",
// "BuyerRequestedCancel": {
// "IsBuyerRequestedCancel": true,
// "BuyerCancelReason": "Found cheaper somewhere else."
// }
// }
// ]
// }
// }
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
json := TJsonObject.Create;
json.LoadSb(sbResponse);
json.EmitCompact := False;
WriteLn(json.Emit());
AmazonOrderId := json.StringOf('payload.AmazonOrderId');
i := 0;
count_i := json.SizeOfArray('payload.OrderItems');
while i < count_i do
begin
json.I := i;
ASIN := json.StringOf('payload.OrderItems[i].ASIN');
OrderItemId := json.StringOf('payload.OrderItems[i].OrderItemId');
SellerSKU := json.StringOf('payload.OrderItems[i].SellerSKU');
Title := json.StringOf('payload.OrderItems[i].Title');
QuantityOrdered := json.IntOf('payload.OrderItems[i].QuantityOrdered');
QuantityShipped := json.IntOf('payload.OrderItems[i].QuantityShipped');
NumberOfItems := json.IntOf('payload.OrderItems[i].ProductInfo.NumberOfItems');
CurrencyCode := json.StringOf('payload.OrderItems[i].ItemPrice.CurrencyCode');
Amount := json.StringOf('payload.OrderItems[i].ItemPrice.Amount');
ItemTaxCurrencyCode := json.StringOf('payload.OrderItems[i].ItemTax.CurrencyCode');
ItemTaxAmount := json.StringOf('payload.OrderItems[i].ItemTax.Amount');
PromotionDiscountCurrencyCode := json.StringOf('payload.OrderItems[i].PromotionDiscount.CurrencyCode');
PromotionDiscountAmount := json.StringOf('payload.OrderItems[i].PromotionDiscount.Amount');
IsGift := json.BoolOf('payload.OrderItems[i].IsGift');
ConditionId := json.StringOf('payload.OrderItems[i].ConditionId');
ConditionSubtypeId := json.StringOf('payload.OrderItems[i].ConditionSubtypeId');
IsTransparency := json.BoolOf('payload.OrderItems[i].IsTransparency');
SerialNumberRequired := json.BoolOf('payload.OrderItems[i].SerialNumberRequired');
IossNumber := json.StringOf('payload.OrderItems[i].IossNumber');
DeemedResellerCategory := json.StringOf('payload.OrderItems[i].DeemedResellerCategory');
StoreChainStoreId := json.StringOf('payload.OrderItems[i].StoreChainStoreId');
IsBuyerRequestedCancel := json.BoolOf('payload.OrderItems[i].BuyerRequestedCancel.IsBuyerRequestedCancel');
BuyerCancelReason := json.StringOf('payload.OrderItems[i].BuyerRequestedCancel.BuyerCancelReason');
i := i + 1;
end;
WriteLn('Success!');
authAws.Free;
jsonLwaToken.Free;
rest.Free;
sbPath.Free;
jsonRc.Free;
sbRequest.Free;
sbResponse.Free;
jsonResp.Free;
json.Free;
end;
// ---------------------------------------------------------------------------
begin
try
RunDemo;
except
on E: Exception do
WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
end;
WriteLn;
{$IFDEF MSWINDOWS}
WriteLn('Press Enter to exit...');
ReadLn;
{$ENDIF}
end.