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mujacica merged 2 commits into from
Aug 12, 2025
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[Unreal] Add transaction and span set_data documentation #14599

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Add transaction and span set_data documentation
mujacica Aug 8, 2025
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Use different keys for Data not to overwrite it
mujacica Aug 11, 2025
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2 changes: 2 additions & 0 deletions docs/platforms/unreal/tracing/instrumentation/custom-instrumentation.mdx
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Expand Up @@ -14,6 +14,8 @@ To capture transactions and spans customized to your organization's needs, you m

<PlatformContent includePath="performance/add-spans-example" />

<PlatformContent includePath="performance/improving-data" />

## Distributed Tracing

In order to use distributed tracing, follow the <PlatformLink to="/tracing/trace-propagation/custom-instrumentation/">custom instrumentation</PlatformLink> steps.
35 changes: 35 additions & 0 deletions platform-includes/performance/improving-data/unreal.mdx
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@@ -0,0 +1,35 @@
## Improving Data on Transactions and Spans

### Adding Data Attributes to Transactions

You can add data attributes to your transactions. This data is visible and __queryable__ in the trace explorer in Sentry. Data attributes can be of type _string_, _number_ or _boolean_, as well as arrays and maps of these types:

```cpp
USentryTransaction* transaction = SentrySubsystem->StartTransaction(TEXT("Automation transaction"), TEXT("Automation operation"));

transaction->SetData(TEXT("key1"), {{TEXT("data_key1"), TEXT("value")}});
transaction->SetData(TEXT("key2"), {{TEXT("data_key2"), 123}});
transaction->SetData(TEXT("key3"), {{TEXT("data_key3"), 123.456f}});
transaction->SetData(TEXT("key4"), {{TEXT("data_key4"), TArray<FSentryVariant>{{123, 456}}}});
transaction->SetData(TEXT("key5"), {{TEXT("data_key5"), TMap<FString, FSentryVariant>{{TEXT("inner_key1"), 123}}}});

transaction->Finish();
```

### Adding Data Attributes to Spans

You can add data attributes to your transactions. This data is visible and __queryable__ in the trace explorer in Sentry. Data attributes can be of type _string_, _number_ or _boolean_, as well as arrays and maps of these types:

```cpp
USentryTransaction* transaction = SentrySubsystem->StartTransaction(TEXT("Automation transaction"), TEXT("Automation operation"));
USentrySpan* span = transaction->StartChildSpan(TEXT("Automation span"), TEXT("Description text"));

span->SetData(TEXT("key1"), {{TEXT("data_key1"), TEXT("value")}});
span->SetData(TEXT("key2"), {{TEXT("data_key2"), 123}});
span->SetData(TEXT("key3"), {{TEXT("data_key3"), 123.456f}});
span->SetData(TEXT("key4"), {{TEXT("data_key4"), TArray<FSentryVariant>{{123, 456}}}});
span->SetData(TEXT("key5"), {{TEXT("data_key5"), TMap<FString, FSentryVariant>{{TEXT("inner_key1"), 123}}}});

span->Finish();
transaction->Finish();
```