breaking: bump dd trace to 1.2.1 (#237)

* breaking: bump dd trace to 1.2.1

* feat: Add major version notes

* fix: readme header size

* fix: Fix test using old method. Describe change in changes list

* fix: use tracer instead of correlation ids

Author: astuyve

README.md

@@ -24,6 +24,13 @@ When opening an issue, include the Datadog Lambda Library version, Python versio
 
 You can also open an issue for a feature request.
 
+## Major Version Notes
+
+### 4.x
+
+- `dd-trace` upgraded from 0.61 to 1.2, full release notes are available [here](https://ddtrace.readthedocs.io/en/stable/release_notes.html#v1-0-0)
+  - `get_correlation_ids()` has been changed to `get_log_correlation_context()`, which now returns a dictionary containing the active `span_id`, `trace_id`, as well as `service` and `env`.
+
 ## Contributing
 
 If you find an issue with this package and have a fix, please feel free to open a pull request following the [procedures](CONTRIBUTING.md).

datadog_lambda/tracing.py

@@ -427,7 +427,7 @@ def get_dd_trace_context():
 def set_correlation_ids():
     """
     Create a dummy span, and overrides its trace_id and span_id, to make
-    ddtrace.helpers.get_correlation_ids() return the correct ids for both
+    ddtrace.helpers.get_log_correlation_context() return a dict containing the correct ids for both
     auto and manual log correlations.
 
     TODO: Remove me when Datadog tracer is natively supported in Lambda.
@@ -453,8 +453,8 @@ def inject_correlation_ids():
     Override the formatter of LambdaLoggerHandler to inject datadog trace and
     span id for log correlation.
 
-    For manual injections to custom log handlers, use `ddtrace.helpers.get_correlation_ids`
-    to retrieve correlation ids (trace_id, span_id).
+    For manual injections to custom log handlers, use `ddtrace.helpers.get_log_correlation_context`
+    to retrieve a dict containing correlation ids (trace_id, span_id).
     """
     # Override the log format of the AWS provided LambdaLoggerHandler
     root_logger = logging.getLogger()