Objective-C Dynamics CRM: Get Accounts

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This example queries the accounts entity set and uses the $select system query option to return the name property for each account.

Documentation: https://msdn.microsoft.com/en-us/library/gg334767.aspx#Basic query example

CURL Command

curl -X GET https://my-dynamics-domain.api.crm.dynamics.com/api/data/v9.0/accounts?$select=name \
  -H "Accept: application/json" \
  -H "OData-MaxVersion: 4.0"  \
  -H "OData-Version: 4.0" \
  -H "Authorization: Bearer DYNAMICS_CRM_ACCESS_TOKEN"

Objective-C Example

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

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

//  URL: https://my-dynamics-domain.api.crm.dynamics.com/api/data/v9.0/accounts?$select=name
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
success = [rest Connect: @"my-dynamics-domain.api.crm.dynamics.com" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@%d",@"ConnectFailReason: ",[rest.ConnectFailReason intValue]);
    NSLog(@"%@",rest.LastErrorText);
    return;
}

[rest AddHeader: @"OData-MaxVersion" value: @"4.0"];
[rest AddHeader: @"Accept" value: @"application/json"];
[rest AddHeader: @"OData-Version" value: @"4.0"];
[rest AddHeader: @"Authorization" value: @"Bearer DYNAMICS_CRM_ACCESS_TOKEN"];

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
success = [rest FullRequestNoBodySb: @"GET" uriPath: @"/api/data/v9.0/accounts?$select=name" sb: sbResponseBody];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

int respStatusCode = [rest.ResponseStatusCode intValue];
if (respStatusCode >= 400) {
    NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",rest.ResponseHeader);
    NSLog(@"%@",@"Response Body:");
    NSLog(@"%@",[sbResponseBody GetAsString]);
    return;
}

CkoJsonObject *jsonResponse = [[CkoJsonObject alloc] init];
[jsonResponse LoadSb: sbResponseBody];

int i;
int count_i;

NSString *odataContext = [jsonResponse StringOf: @"\"@odata.context\""];
i = 0;
count_i = [[jsonResponse SizeOfArray: @"value"] intValue];
while (i < count_i) {
    jsonResponse.I = [NSNumber numberWithInt: i];
    NSString *odataEtag = [jsonResponse StringOf: @"value[i].\"@odata.etag\""];
    NSString *name = [jsonResponse StringOf: @"value[i].name"];
    NSString *accountid = [jsonResponse StringOf: @"value[i].accountid"];
    i = i + 1;
}

Sample JSON Response Body

{
  "@odata.context": "https://mydomain.api.crm.dynamics.com/api/data/v8.2/$metadata#accounts(name)",
  "value": [
    {
      "@odata.etag": "W/\"1817213\"",
      "name": "A. Datum",
      "accountid": "475b158c-541c-e511-80d3-3863bb347ba8"
    },
    {
      "@odata.etag": "W/\"1817214\"",
      "name": "Adventure Works",
      "accountid": "a8a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817215\"",
      "name": "Alpine Ski House",
      "accountid": "aaa19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817216\"",
      "name": "Blue Yonder Airlines",
      "accountid": "aca19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817217\"",
      "name": "City Power & Light",
      "accountid": "aea19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817218\"",
      "name": "Coho Winery",
      "accountid": "b0a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817219\"",
      "name": "Consolidated Messenger",
      "accountid": "b2a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817220\"",
      "name": "Fabrikam, Inc.",
      "accountid": "b4a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817221\"",
      "name": "Fourth Coffee",
      "accountid": "b6a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817222\"",
      "name": "Graphic Design Institute",
      "accountid": "b8a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817223\"",
      "name": "Humongous Insurance",
      "accountid": "baa19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817224\"",
      "name": "Litware",
      "accountid": "bca19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817225\"",
      "name": "Lucerne Publishing",
      "accountid": "bea19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817226\"",
      "name": "Margie's Travel",
      "accountid": "c0a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817227\"",
      "name": "Northwind Traders",
      "accountid": "c2a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817228\"",
      "name": "Proseware, Inc.",
      "accountid": "c4a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817229\"",
      "name": "School of Fine Art",
      "accountid": "c6a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817230\"",
      "name": "Southridge Video",
      "accountid": "c8a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817231\"",
      "name": "Tailspin Toys",
      "accountid": "caa19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817232\"",
      "name": "The Phone Company",
      "accountid": "cca19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817233\"",
      "name": "Trey Research",
      "accountid": "cea19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817234\"",
      "name": "Wide World Importers",
      "accountid": "d0a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817235\"",
      "name": "Wingtip Toys",
      "accountid": "d2a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817236\"",
      "name": "Woodgrove Bank",
      "accountid": "d4a19cdd-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1817237\"",
      "name": "Best o' Sales",
      "accountid": "2123455d-be62-e411-80d6-b4b52f567ec8"
    },
    {
      "@odata.etag": "W/\"1817238\"",
      "name": "Microsoft",
      "accountid": "d3ae1b3a-8bd2-e411-80ef-c4346bac7be8"
    }
  ]
}