This is a simple example using hyper that demonstrates tracing http request from client to server. The example shows key aspects of tracing such as:

• Root Span (on Client)
• Child Span from a Remote Parent (on Server)
• Child Span created on the async function parented by the first level child (on Server)
• SpanContext Propagation (from Client to Server)
• Span Events
• Span Attributes
• Context propagation across async task boundaries.

# Run server
$ cargo run --bin http-server

# In another tab, run client
$ cargo run --bin http-client

# The spans should be visible in stdout in the order that they were exported.