initWithAppInfo:delegate:

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Syntax

– (instancetype)initWithAppInfo:(id)appInfo delegate:(id)delegate;

Here, appInfo is a JSON formatted string or NSDictionary object that includes identification of the app.

Init JSON

• Call initWithAppInfo:delegate: to initialize a Nielsen App SDK object.
• The complete list of arguments that can be passed via the AppInfo JSON schema for the API are as follows.
  • The appid is provided by the Nielsen Technical Account Manager (TAM). The appid is a GUID data type and is specific to the application.

Parameter / Argument	Description	Source	Required?	Example
appid	Unique id for the application assigned by Nielsen. It is GUID data type. Use Test appid during development, test, and certification processes Use Production appid to submit app to App / Play store, after receiving Nielsen certification.	Nielsen-specified	Yes	PXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
sfcode	Nielsen collection facility to which the SDK should connect. DTVR "us" for production DCR "dcr" for production	Nielsen-specified	Yes	dcr
longitude	This value will not be overwritten by SDK for International (Germany).	Client-defined	No	123.22
latitude	This value will not be overwritten by SDK for International (Germany).	Client-defined	No	-123.22
dma	Nielsen Designated Market Area code. DMA must be the Nielsen DMA value. Please check with the Technical Account Manager.	Client-defined	No	123
ccode	If Country Code is provided by the app, it should be done after consultation with the Technical Account Manager.	Client-defined	No	456
hem_sha256	SHA256-hashed email address (client-supplied unique 32-character hexadecimal string)	Client-defined	No	tMmiiTI7IaAcPpQPFQ65uMVCWH8av9jw4cwf/F5HVRQ=
hem_sha1	SHA1-hashed email address (client-supplied unique 32-character hexadecimal string)	Client-defined	No	XvBniTI7IaAcPpQPFQ65uMVCWH8av9jw4cwf/F5HVRQ=
hem_md5	MD5-hashed email address (client-supplied unique 32-character hexadecimal string)	Client-defined	No	JnIbdTI7IaAcPpQPFQ65uMVCWH8av9jw4cwf/F5HVRQ=
uid2	An identifier based on a user’s verifiable PII (e.g. hashed email). UID2.0 was initially created by The Trade Desk (TTD) and is now managed by Prebid.	Client-defined	No	MTKVpUAzwYAPnHrtfE0wlINOMzhU7UUEjjVdCdRu63k=
uid2_token	Encrypted Unified ID 2.0	Client-defined	No	AgAAAAPFR0zA5ogv/yaAPiUsAdZPsfqS8Ql DSGxAB+rr8yekFs3AjLYVk5qqqiyV2XHbSuwzHmxSlLeQeK QI1mp015jsNnpX5/xGgXldcgVz+gFnyh3T8/3agMwRmyrhC xG4oH2C7fc48AQk2eotE7FW0ZDEYM8fD9ZxDaxFUC/OV3OuZA&
luid	Living Unit ID - Experian Household ID Note: This parameter is applicable only for CTV and First Party Livestream data	Client-defined	No	B0EOFEDgD

Return Values

The application should check for valid return values like:

• Initialized NielsenAppApi object of type id.
• NIL object, if the initialization failed

Note: The minimum version supported by SDK is iOS 7. The app may not compile or the call to initWithAppInfo:delegate: will fail if Nielsen App SDK is initialized on devices with iOS versions 6.x and earlier.

Debug flag for development environment

Player application developers / integrators can use Debug flag to check whether an App SDK API call made is successful. To activate the Debug flag,

• Pass the argument @"nol_devDebug":@"INFO", in the JSON string for initWithAppInfo:delegate:, as below. The permitted values are
  • INFO: Displays the API calls and the input data from the application (validate player name, app ID, etc.). It can be used as certification Aid.
  • WARNING: Indicates potential integration / configuration errors or SDK issues.
  • ERROR: Indicates important integration errors or non-recoverable SDK issues.
  • DEBUG: Debug logs, used by the developers to debug more complex issues.

Example

NSDictionary* appInformation = @
         {
            @"sfcode": @"dcr",
            @"appid": @"PXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
            @"hem_MD5": @"dea036a534e3cfb72cb786d48eae0fd4",
            @"hem_sha1": @"7e77fc5552938f67f5071ce99ec0cb058c2b1c7c",
            @"hem_sha256": @"e46f3f2c8c0e1d509aeb04d2fd78f0481c8520cb6769c258a50ddb98b073dabc",
            @"uid2": @"MTKVpUAzwYAPnHrtfE0wlINOMzhU7UUEjjVdCdRu63k=",
            @"uid2_token": @"AgAAAAPFR0zA5ogv/yaAPiUsAdZPsfqS8Ql
DSGxAB+rr8yekFs3AjLYVk5qqqiyV2XHbSuwzHmxSlLeQeK QI1mp015jsNnpX5/xGgXldcgVz+gFnyh3T8/3agMwRmyrhC xG4oH2C7fc48AQk2eotE7FW0ZDEYM8fD9ZxDaxFUC/OV3OuZA&",
            @"nol_devDebug": @"INFO"
         };
nlsAppApiMeter = [[NielsenAppApi alloc] initWithAppInfo:appInformation delegate:self];

Once the flag is active, it logs each API call made and the data passed. The log created by this flag is minimal.

Note: DO NOT activate the Debug flag in a production environment.

Sequence Diagram

Examples

SDK init JSON call	Example
JSON with basic application information	NSDictionary *appInformation = @ { @"sfcode": @"dcr", @"appid": @"PXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX", }
JSON with optional Longitude and Latitude	NSDictionary *appInformation = @ { @"sfcode": @"dcr", @"appid": @"PXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX", @"longitude": @"123.22", @"latitude": @"-223.32", @"dma": @"123", @"ccode": @"456" }