Delphi ActiveX Requires Chilkat v11.0.0+
Delphi ActiveX
PayPal - Find Authorizations
See more PayPal Examples
Finds previously created authorizations.Chilkat Delphi ActiveX Downloads
var
success: Integer;
jsonToken: TChilkatJsonObject;
sbAuth: TChilkatStringBuilder;
rest: TChilkatRest;
bAutoReconnect: Integer;
sbJsonResponse: TChilkatStringBuilder;
json: TChilkatJsonObject;
sbTemp: TChilkatStringBuilder;
jsonAuth: TChilkatJsonObject;
numPayments: Integer;
i: Integer;
j: Integer;
numTransactions: Integer;
numRelatedResources: Integer;
k: Integer;
begin
success := 0;
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Load our previously obtained access token. (see PayPal OAuth2 Access Token)
jsonToken := TChilkatJsonObject.Create(Self);
jsonToken.LoadFile('qa_data/tokens/paypal.json');
// Build the Authorization request header field value.
sbAuth := TChilkatStringBuilder.Create(Self);
// token_type should be "Bearer"
sbAuth.Append(jsonToken.StringOf('token_type'));
sbAuth.Append(' ');
sbAuth.Append(jsonToken.StringOf('access_token'));
// Make the initial connection.
// A single REST object, once connected, can be used for many PayPal REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
rest := TChilkatRest.Create(Self);
bAutoReconnect := 1;
success := rest.Connect('api.sandbox.paypal.com',443,1,bAutoReconnect);
if (success = 0) then
begin
Memo1.Lines.Add(rest.LastErrorText);
Exit;
end;
// ----------------------------------------------------------------------------------------------
// The code above this comment could be placed inside a function/subroutine within the application
// because the connection does not need to be made for every request. Once the connection is made
// the app may send many requests..
// ----------------------------------------------------------------------------------------------
// Clear the REST object of any headers or query params from previous requests.
rest.ClearAllHeaders();
rest.ClearAllQueryParams();
rest.AddHeader('Authorization',sbAuth.GetAsString());
// To find authoriaztions, we list payments and look for those
// containing "authorization" transactions
rest.AddQueryParam('count','100');
rest.AddQueryParam('start_index','0');
rest.AddQueryParam('sort_by','update_time');
rest.AddQueryParam('sort_order','asc');
// Send the GET request and get the JSON response.
sbJsonResponse := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestNoBodySb('GET','/v1/payments/payment',sbJsonResponse.ControlInterface);
if (success = 0) then
begin
Memo1.Lines.Add(rest.LastErrorText);
Exit;
end;
json := TChilkatJsonObject.Create(Self);
json.EmitCompact := 0;
json.LoadSb(sbJsonResponse.ControlInterface);
// (optional) Save the entire JSON response to a file to examine if desired..
sbTemp := TChilkatStringBuilder.Create(Self);
json.EmitSb(sbTemp.ControlInterface);
sbTemp.WriteFile('qa_output/paypal_payments.json','utf-8',0);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(rest.ResponseStatusCode));
// Did we get a 200 success response?
if (rest.ResponseStatusCode <> 200) then
begin
Memo1.Lines.Add(json.Emit());
Memo1.Lines.Add('Failed.');
Exit;
end;
// We are looking for "authorization" transactions .
// As shown below, we are looking in the "transactions" for "related_resources"
// containing "authorization" JSON objects.
// {
// "payments": [
// {
// "id": "PAY-3SL8976592063093RLA3DMAY",
// "create_time": "2016-11-24T00:36:19Z",
// "update_time": "2016-11-24T00:36:24Z",
// "state": "approved",
// "intent": "authorize",
// "payer": {
// "payment_method": "credit_card",
// "funding_instruments": [
// {
// "credit_card_token": {
// "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
// "payer_id": "user12345",
// "last4": "9974",
// "type": "visa",
// "expire_month": "9",
// "expire_year": "2021"
// }
// }
// ]
// },
// "transactions": [
// {
// "amount": {
// "total": "6.70",
// "currency": "USD",
// "details": {
// "subtotal": "6.70"
// }
// },
// "description": "This is the payment transaction description.",
// "related_resources": [
// {
// "authorization": {
// "id": "6HG91590AX913463C",
// "create_time": "2016-11-24T00:36:19Z",
// "update_time": "2016-11-24T00:36:24Z",
// "amount": {
// ...
// }
// },
// "state": "authorized",
// "parent_payment": "PAY-3SL8976592063093RLA3DMAY",
// "valid_until": "2016-12-23T00:36:19Z",
// ...
//
// Iterate over the payments and show each authorization
jsonAuth := TChilkatJsonObject.Create(Self);
numPayments := json.SizeOfArray('payments');
i := 0;
while i < numPayments do
begin
json.I := i;
j := 0;
numTransactions := json.SizeOfArray('payments[i].transactions');
while j < numTransactions do
begin
json.J := j;
numRelatedResources := json.SizeOfArray('payments[i].transactions[j].related_resources');
k := 0;
while k < numRelatedResources do
begin
json.K := k;
if (json.HasMember('payments[i].transactions[j].related_resources[k].authorization') = 1) then
begin
json.ObjectOf2('payments[i].transactions[j].related_resources[k].authorization',jsonAuth.ControlInterface);
Memo1.Lines.Add('authorization id: ' + jsonAuth.StringOf('id'));
Memo1.Lines.Add('state: ' + jsonAuth.StringOf('state'));
Memo1.Lines.Add('total: ' + jsonAuth.StringOf('amount.total'));
Memo1.Lines.Add('----');
end;
k := k + 1;
end;
j := j + 1;
end;
i := i + 1;
end;
Memo1.Lines.Add('success');