chg: usr: updating example code

Author: alrex

CHANGELOG.md

@@ -1,8 +1,14 @@
 ## Unreleased
 
+### Changes
+
+* Resources now added to span tags. [alrex]
+
+  Adding support for resources. They will be added to a span's tags. Also adding a parameter to allow users to set the `service_version`.
+
 ### Fix
 
-* Events are reported as logs. [Alex Boten]
+* Events are reported as logs. [alrex]
 
 v0.6b1
 ======

README.md

@@ -1,22 +1,32 @@
 ![build status](https://github.com/lightstep/opentelemetry-exporter-python/workflows/build/badge.svg) [![PyPI version](https://badge.fury.io/py/opentelemetry-ext-lightstep.svg)](https://badge.fury.io/py/opentelemetry-ext-lightstep)
-# LightStep OpenTelemetry Python Exporter
-This is an exporter for opentelemetry-python
+# Lightstep OpenTelemetry Python Exporter
+
+This is the Lightstep exporter for OpenTelemetry
 
 ### Install
 
 ```bash
 pip install opentelemetry-ext-lightstep
 ```
 
-### Initialize
+### Configure
 
 ```python
+from opentelemetry import trace
+from opentelemetry.ext.lightstep import LightStepSpanExporter
+from opentelemetry.sdk.trace.export import BatchExportSpanProcessor
+
 exporter = LightStepSpanExporter(
     name="test-service",
     token=<PROJECT_ACCESS_TOKEN>,
     host=<SATELLITE_URL>,
     port=<SATELLITE_PORT>,
+    service_version="1.2.3",
 )
 span_processor = BatchExportSpanProcessor(exporter)
-tracer.add_span_processor(span_processor)
+trace.get_tracer_provider().add_span_processor(span_processor)
 ```
+
+### Examples
+
+See the [examples](https://github.com/lightstep/opentelemetry-exporter-python/tree/master/examples) directory.

examples/tracer.py

@@ -2,20 +2,30 @@
 import os
 
 from opentelemetry import trace
-from opentelemetry.sdk.trace import TracerSource
-from opentelemetry.sdk.trace.export import BatchExportSpanProcessor
 from opentelemetry.ext.lightstep import LightStepSpanExporter
+from opentelemetry.sdk.trace import TracerProvider
+from opentelemetry.sdk.trace.export import BatchExportSpanProcessor
+
 
-trace.set_preferred_tracer_source_implementation(lambda T: TracerSource())
 # configure the LightStepSpanExporter as our exporter
 exporter = LightStepSpanExporter(
-    name="test-service", token=os.getenv("LIGHTSTEP_TOKEN", ""), verbosity=5
+    name=os.getenv("LIGHTSTEP_SERVICE_NAME", "test-service-name"),
+    token=os.getenv("LIGHTSTEP_ACCESS_TOKEN", ""),
+    verbosity=5,
+    host="ingest.staging.lightstep.com",
+    service_version=os.getenv("LIGHTSTEP_SERVICE_VERSION", "0.0.1"),
 )
 span_processor = BatchExportSpanProcessor(exporter)
-trace.tracer_source().add_span_processor(span_processor)
+
+
+trace.set_tracer_provider(TracerProvider())
+trace.get_tracer_provider().add_span_processor(span_processor)
 
 tracer = trace.get_tracer("lightstep-exporter-example")
-with tracer.start_as_current_span("foo"):
+with tracer.start_as_current_span("foo") as span:
+    span.set_attribute("platform", "osx")
+    span.set_attribute("version", "1.2.3")
+    span.add_event("event in foo", {"name": "foo1"})
     with tracer.start_as_current_span("bar"):
         with tracer.start_as_current_span("baz") as s:
             s.set_attribute("test", "bah")