C#

PayPal - Capture Authorization

See more PayPal Examples

Capture and process a previously created authorization. The original payment call must have the intent set to authorize.

Note: This example requires Chilkat v9.5.0.65 or greater.

C#

bool success = false;

//  Note: Requires Chilkat v9.5.0.64 or greater.

//  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)
Chilkat.JsonObject jsonToken = new Chilkat.JsonObject();
jsonToken.LoadFile("qa_data/tokens/paypal.json");

//  Build the Authorization request header field value.
Chilkat.StringBuilder sbAuth = new Chilkat.StringBuilder();
//  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.
Chilkat.Rest rest = new Chilkat.Rest();
bool bAutoReconnect = true;
success = rest.Connect("api.sandbox.paypal.com",443,true,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

//  ----------------------------------------------------------------------------------------------
//  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..
//  ----------------------------------------------------------------------------------------------

//  To capture a particular amount, build JSON such as this:
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;
json.UpdateString("amount.currency","USD");
json.UpdateString("amount.total","6.70");
//  is_final_capture is optional and indicates whether to release all remaining funds that the authorization holds in the funding instrument.
json.UpdateBool("is_final_capture",true);
Debug.WriteLine(json.Emit());

//  The JSON created by the above code:

//  	{ 
//  	  "amount": { 
//  	    "currency": "USD",
//  	    "total": "6.70"
//  	  },
//  	  "is_final_capture": true
//  	}

//  This is the OAuth2 Authorization header, not to be confused with a PayPal credit card authorization...
rest.AddHeader("Authorization",sbAuth.GetAsString());
rest.AddHeader("Content-Type","application/json");

//  The authorization ID is added to the path.
//  The authorization ID is obtained from payment records as shown here: Find Authorizations
Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
sbPath.Append("/v1/payments/authorization/authorization_id/capture");
int numReplaced = sbPath.Replace("authorization_id","6HG91590AX913463C");

//  Send the POST request containing the JSON in the request body, and get the JSON response.
Chilkat.StringBuilder sbJsonRequest = new Chilkat.StringBuilder();
json.EmitCompact = true;
json.EmitSb(sbJsonRequest);
Chilkat.StringBuilder sbJsonResponse = new Chilkat.StringBuilder();

success = rest.FullRequestSb("POST",sbPath.GetAsString(),sbJsonRequest,sbJsonResponse);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

json.EmitCompact = false;
json.LoadSb(sbJsonResponse);

Debug.WriteLine("Response Status Code = " + Convert.ToString(rest.ResponseStatusCode));

//  Did we get a 200 success response?
if (rest.ResponseStatusCode != 200) {
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed.");
    return;
}

Debug.WriteLine(json.Emit());
Debug.WriteLine("Success.");

//  A successful JSON response:

//  	{ 
//  	  "id": "87S70321AE222860G",
//  	  "create_time": "2016-11-26T17:27:46Z",
//  	  "update_time": "2016-11-26T17:27:50Z",
//  	  "amount": { 
//  	    "total": "6.70",
//  	    "currency": "USD"
//  	  },
//  	  "is_final_capture": true,
//  	  "state": "completed",
//  	  "reasonCode": "None",
//  	  "parent_payment": "PAY-3SL8976592063093RLA3DMAY",
//  	  "transaction_fee": { 
//  	    "value": "0.49",
//  	    "currency": "USD"
//  	  },
//  	  "links": [
//  	    { 
//  	      "href": "https://api.sandbox.paypal.com/v1/payments/capture/87S70321AE222860G",
//  	      "rel": "self",
//  	      "method": "GET"
//  	    },
//  	    { 
//  	      "href": "https://api.sandbox.paypal.com/v1/payments/capture/87S70321AE222860G/refund",
//  	      "rel": "refund",
//  	      "method": "POST"
//  	    },
//  	    { 
//  	      "href": "https://api.sandbox.paypal.com/v1/payments/authorization/6HG91590AX913463C",
//  	      "rel": "authorization",
//  	      "method": "GET"
//  	    },
//  	    { 
//  	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-3SL8976592063093RLA3DMAY",
//  	      "rel": "parent_payment",
//  	      "method": "GET"
//  	    }
//  	  ]
//  	}
//