Rust Requires Chilkat v11.0.0+

PayPal - Find Authorizations

See more PayPal Examples

Finds previously created authorizations. Rust

// 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)
let json_token = chilkat::JsonObject::new();
let _ = json_token.load_file("qa_data/tokens/paypal.json");

// Build the Authorization request header field value.
let sb_auth = chilkat::StringBuilder::new();
// token_type should be "Bearer"
let _ = sb_auth.append(&json_token.string_of("token_type").unwrap_or_default());
let _ = sb_auth.append(" ");
let _ = sb_auth.append(&json_token.string_of("access_token").unwrap_or_default());

// 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.
let rest = chilkat::Rest::new();
let b_auto_reconnect = true;
if rest.connect("api.sandbox.paypal.com", 443, true, b_auto_reconnect).is_err() {
    println!("{}", rest.last_error_text());
    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..
// ----------------------------------------------------------------------------------------------

// Clear the REST object of any headers or query params from previous requests.
let _ = rest.clear_all_headers();
let _ = rest.clear_all_query_params();

let _ = rest.add_header("Authorization", &sb_auth.get_as_string().unwrap_or_default());

// To find authoriaztions, we list payments and look for those
// containing "authorization" transactions
let _ = rest.add_query_param("count", "100");
let _ = rest.add_query_param("start_index", "0");
let _ = rest.add_query_param("sort_by", "update_time");
let _ = rest.add_query_param("sort_order", "asc");

// Send the GET request and get the JSON response.
let sb_json_response = chilkat::StringBuilder::new();
if rest.full_request_no_body_sb("GET", "/v1/payments/payment", &sb_json_response).is_err() {
    println!("{}", rest.last_error_text());
    return;
}

let json = chilkat::JsonObject::new();
json.set_emit_compact(false);
let _ = json.load_sb(&sb_json_response);

// (optional) Save the entire JSON response to a file to examine if desired..
let sb_temp = chilkat::StringBuilder::new();
let _ = json.emit_sb(&sb_temp);
let _ = sb_temp.write_file("qa_output/paypal_payments.json", "utf-8", false);

println!("Response Status Code = {}", rest.response_status_code());

// Did we get a 200 success response?
if rest.response_status_code() != 200 {
    println!("{}", json.emit().unwrap_or_default());
    println!("Failed.");
    return;
}

// 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
let json_auth = chilkat::JsonObject::new();
let num_payments = json.size_of_array("payments");
let mut i = 0;
while i < num_payments {
    json.set_i(i);
    let mut j = 0;
    let num_transactions = json.size_of_array("payments[i].transactions");
    while j < num_transactions {
        json.set_j(j);
        let num_related_resources = json.size_of_array("payments[i].transactions[j].related_resources");
        let mut k = 0;
        while k < num_related_resources {
            json.set_k(k);
            if json.has_member("payments[i].transactions[j].related_resources[k].authorization") {

                let _ = json.object_of2("payments[i].transactions[j].related_resources[k].authorization", &json_auth);

                println!("authorization id: {}", json_auth.string_of("id").unwrap_or_default());
                println!("state: {}", json_auth.string_of("state").unwrap_or_default());
                println!("total: {}", json_auth.string_of("amount.total").unwrap_or_default());
                println!("----");
            }

            k = k + 1;
        }

        j = j + 1;
    }

    i = i + 1;
}

println!("success");