(Objective-C) QuickBooks - Read an Employee (with Error Response)

Demonstrates how to fetch the information for a specific Quickbooks employee, but tries to fetch using an invalid employee id. Shows the error response and how to parse it.

For more information, see https://developer.intuit.com/app/developer/qbo/docs/api/accounting/all-entities/employee#read-an-employee

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoJsonObject.h>
#import <CkoRest.h>
#import <CkoStringBuilder.h>
#import <NSString.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Get our previously obtained OAuth2 access token, which should contain JSON like this:
// {
//   "expires_in": 3600,
//   "x_refresh_token_expires_in": 8726400,
//   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
//   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
//   "token_type": "bearer"
// }

CkoJsonObject *jsonToken = [[CkoJsonObject alloc] init];
BOOL success = [jsonToken LoadFile: @"qa_data/tokens/qb-access-token.json"];

CkoRest *rest = [[CkoRest alloc] init];

// Connect using TLS.
// A single REST object, once connected, can be used for many Quickbooks 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.
BOOL bAutoReconnect = YES;
success = [rest Connect: @"sandbox-quickbooks.api.intuit.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

CkoStringBuilder *sbAuth = [[CkoStringBuilder alloc] init];
[sbAuth Append: @"Bearer "];
[sbAuth Append: [jsonToken StringOf: @"access_token"]];
rest.Authorization = [sbAuth GetAsString];

[rest AddHeader: @"Accept" value: @"application/json"];
rest.AllowHeaderFolding = NO;

// The company ID is 123146096291789
// The employee ID is 999  (There is no employee with this ID and we should get a 400 response code w/ a response body indicating the error.)
NSString *responseBody = [rest FullRequestNoBody: @"GET" uriPath: @"/v3/company/123146096291789/employee/999?minorversion=45"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// Load the JSON response into a JSON object for parsing.
// A sample JSON response is shown below.
CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json Load: responseBody];
json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);

// A 400 response is what we'd expect if trying to query for a non-existent employee ID
if ([rest.ResponseStatusCode intValue] != 400) {
    NSLog(@"%@",@"Request Header: ");
    NSLog(@"%@",rest.LastRequestHeader);
    NSLog(@"%@",@"----");
    NSLog(@"%@%d",@"Response StatusCode = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"Response StatusLine: ",rest.ResponseStatusText);
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",rest.ResponseHeader);
    return;
}

// If we got here, the response status code was 400..
// Iterate over the errors..
int numErrors = [[json SizeOfArray: @"Fault.Error"] intValue];
int i = 0;
while (i < numErrors) {

    json.I = [NSNumber numberWithInt: i];
    NSLog(@"%@%@",@"Message: ",[json StringOf: @"Fault.Error[i].Message"]);
    NSLog(@"%@%@",@"Detail: ",[json StringOf: @"Fault.Error[i].Detail"]);
    NSLog(@"%@%@",@"code: ",[json StringOf: @"Fault.Error[i].code"]);
    NSLog(@"%@",@"----");
    i = i + 1;
}

// ------------------------------------------------------
// The JSON error response looks like this:

// {
//   "Fault": {
//     "Error": [
//       {
//         "Message": "Object Not Found",
//         "Detail": "Object Not Found : Something you're trying to use has been made inactive. Check the fields with accounts, customers, items, vendors or employees.",
//         "code": "610",
//         "element": ""
//       }
//     ],
//     "type": "ValidationFault"
//   },
//   "time": "2020-03-07T10:21:19.089-08:00"
// }