Fix handling of string bodies.

lib/async/http/faraday/adapter.rb

@@ -18,7 +18,7 @@
 module Async
 	module HTTP
 		module Faraday
-			class BodyWrapper < ::Protocol::HTTP::Body::Readable
+			class BodyReadWrapper < ::Protocol::HTTP::Body::Readable
 				def initialize(body, block_size: 4096)
 					@body = body
 					@block_size = block_size
@@ -118,8 +118,11 @@ def call(env)
 						if body = env.body
 							# We need to wrap the body in a Readable object so that it can be read in chunks:
 							# Faraday's body only responds to `#read`.
-							# body = ::Protocol::HTTP::Body::Buffered.wrap(body)
-							body = BodyWrapper.new(body)
+							if body.respond_to?(:read)
+								body = BodyReadWrapper.new(body)
+							else
+								body = ::Protocol::HTTP::Body::Buffered.wrap(body)
+							end
 						end
 
 						if headers = env.request_headers

readme.md

@@ -31,16 +31,16 @@ require 'async/http/faraday'
 Faraday.default_adapter = :async_http
 
 # Per connection:
-conn = Faraday.new(...) do |faraday|
-	faraday.adapter :async_http
+connection = Faraday.new(...) do |builder|
+	builder.adapter :async_http
 end
 ```
 
 Here is how you make a request:
 
 ``` ruby
 Async do
-	response = conn.get("/index")
+	response = connection.get("/index")
 end
 ```
 

spec/async/http/faraday/adapter/proxy_spec.rb

@@ -13,9 +13,9 @@
 	include_context Async::RSpec::Reactor
 
 	def get_response(url = endpoint.url, path = '/index', adapter_options: {})
-		connection = Faraday.new(url, proxy: ENV['PROXY_URL']) do |faraday|
-			faraday.response :logger
-			faraday.adapter :async_http, **adapter_options
+		connection = Faraday.new(url, proxy: ENV['PROXY_URL']) do |builder|
+			builder.response :logger
+			builder.adapter :async_http, **adapter_options
 		end
 
 		connection.get(path)

spec/async/http/faraday/adapter_spec.rb

@@ -46,13 +46,11 @@ def run_server(response = Protocol::HTTP::Response[204], response_delay: nil)
 	end
 
 	def get_response(url = endpoint.url, path = '/index', adapter_options: {})
-		connection = Faraday.new(url) do |faraday|
-			faraday.response :logger
-			faraday.adapter :async_http, **adapter_options
+		connection = Faraday.new(url) do |builder|
+			builder.adapter :async_http, **adapter_options
 		end
 
 		connection.get(path)
-
 	ensure
 		connection&.close
 	end
@@ -86,8 +84,8 @@ def get_response(url = endpoint.url, path = '/index', adapter_options: {})
 	end
 
 	it "works without initial url and trailing slash (compatiblisity to the original behaviour)" do
-		response = Faraday.new do |faraday|
-			faraday.adapter :async_http
+		response = Faraday.new do |builder|
+			builder.adapter :async_http
 		end.get 'https://www.google.com'
 		expect(response).to be_success
 	end
@@ -124,6 +122,31 @@ def get_response(url = endpoint.url, path = '/index', adapter_options: {})
 		expect { get_response(endpoint.url, '/index') }.to raise_error(Faraday::ConnectionFailed)
 	end
 
+	def post_response(body, url = endpoint.url, path = '/index', adapter_options: {})
+		connection = Faraday.new(url) do |builder|
+			builder.request :url_encoded
+			builder.adapter :async_http, **adapter_options
+		end
+
+		connection.post(path) do |request|
+			request.body = body
+		end
+	ensure
+		connection&.close
+	end
+
+	it 'can use string body' do
+		run_server(Protocol::HTTP::Response[200, {}, ['Hello World']]) do
+			expect(post_response('Hello World').body).to be == 'Hello World'
+		end
+	end
+
+	it 'can use url-encoded body' do
+		run_server(Protocol::HTTP::Response[200, {}, ['Hello World']]) do
+			expect(post_response({text: 'Hello World'}).body).to be == 'Hello World'
+		end
+	end
+
 	it 'can use multi-part post body' do
 		connection = Faraday.new do |builder|
 			builder.request :multipart