Merge pull request #45 from IABTechLab/ian-UID2-2203-deprecate-optout_check-0

add warning about removing support for policy=0

Author: Ian-Nara

README.md

@@ -50,7 +50,7 @@ If you're using the SDK's HTTP implementation, follow these steps.
 
    >IMPORTANT: Be sure to call this function only when you have obtained legal basis to convert the user’s [directly identifying information (DII)](https://unifiedid.com/docs/ref-info/glossary-uid#gl-dii) to UID2 tokens for targeted advertising.
    
-   >`doNotGenerateTokensForOptedOut()` applies `policy=1` in the [/token/generate](https://unifiedid.com/docs/endpoints/post-token-generate#token-generation-policy) call. Without this, `policy` is omitted to maintain backwards compatibility.
+   >IMPORTANT: Always apply `doNotGenerateTokensForOptedOut()`. This applies `policy=1` in the [/token/generate](https://unifiedid.com/docs/endpoints/post-token-generate#token-generation-policy) call. Support for `policy=0` will be removed soon.
 #### Standard Integration
 
 If you're using standard integration (client and server) (see [UID2 SDK for JavaScript Integration Guide](https://unifiedid.com/docs/guides/publisher-client-side)), follow this step:
@@ -102,7 +102,7 @@ If you're using server-only integration (see [Publisher Integration Guide, Serve
    2. Body: `envelope.getEnvelope()`
    >IMPORTANT: Be sure to call this endpoint only when you have obtained legal basis to convert the user’s [directly identifying information (DII)](https://unifiedid.com/docs/ref-info/glossary-uid#gl-dii) to UID2 tokens for targeted advertising.
 
-   >`doNotGenerateTokensForOptedOut()` applies `policy=1` in the [/token/generate](https://unifiedid.com/docs/endpoints/post-token-generate#token-generation-policy) call. Without this, `policy` is omitted to maintain backwards compatibility.
+   >IMPORTANT: Always apply `doNotGenerateTokensForOptedOut()`. This applies `policy=1` in the [/token/generate](https://unifiedid.com/docs/endpoints/post-token-generate#token-generation-policy) call. Support for `policy=0` will be removed soon.
 
 4. If the HTTP response status code is _not_ 200, see [Response Status Codes](https://unifiedid.com/docs/endpoints/post-token-generate#response-status-codes) to determine next steps. Otherwise, convert the UID2 identity response content into a `TokenGenerateResponse` object:
 

src/main/java/com/uid2/client/TokenGenerateInput.java

@@ -51,6 +51,7 @@ TokenGenerateInput doNotHash() {
         return this;
     }
 
+    // Always use .doNotGenerateTokensForOptedOut(), which applies policy=1. Support for policy=0 will be removed soon.
     public TokenGenerateInput doNotGenerateTokensForOptedOut() {
         generateForOptedOut = false;
         return this;