# OpenCensus Tesla Middleware

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OpencensusTesla is a Tesla middleware for generating spans for outgoing requests. This middleware will create a new child span from the current context and include this context in W3C TraceContext headers with the request.

## Installation

The package can be installed by adding `opencensus_tesla` to your list of dependencies in `mix.exs`:

```elixir
def deps do
  [
    {:opencensus_tesla, "~> 0.2.0"}
  ]
end
```

### Example usage

```
defmodule MyClient do
  use Tesla

  plug OpencensusTesla.Middleware
end
```