docs: add examples

.formatter.exs

@@ -1,5 +1,5 @@
 # Used by "mix format"
 [
-  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"],
+  inputs: ["{mix,.formatter}.exs", "{config,examples,lib,test}/**/*.{ex,exs}"],
   line_length: 80
 ]

examples/README.md

@@ -0,0 +1,10 @@
+# Examples for GraphQL Websocket Client
+
+To make the examples work, boot up the test server provided in the 
+`docker-compose.yml`. By default, the server is running on port 8080.
+
+Then, from the project root, use `mix run` to run any of the example scripts. 
+
+```sh
+mix run examples/query.exs
+```

examples/query.exs

@@ -0,0 +1,14 @@
+{:ok, socket} =
+  GraphQLWSClient.start_link(url: "ws://localhost:8080/subscriptions")
+
+socket
+|> GraphQLWSClient.query!("""
+  query GetPosts {
+    posts {
+      id
+      body
+      author
+    }
+  }
+""")
+|> IO.inspect()

examples/stream.exs

@@ -0,0 +1,40 @@
+{:ok, socket} =
+  GraphQLWSClient.start_link(url: "ws://localhost:8080/subscriptions")
+
+Task.start_link(fn ->
+  socket
+  |> GraphQLWSClient.stream!("""
+    subscription PostCreated {
+      postCreated {
+        id
+        author
+        body
+      }
+    }
+  """)
+  |> Stream.each(&IO.inspect/1)
+  |> Stream.run()
+end)
+
+defmodule QueryLoop do
+  def query(socket) do
+    Process.sleep(2000)
+
+    GraphQLWSClient.query(
+      socket,
+      """
+        mutation CreatePost($author: String!, $body: String!) {
+          createPost(author: $author, body: $body) {
+            id
+          }
+        }
+      """,
+      %{"author" => "Tobi", "body" => "Lorem Ipsum"}
+    )
+
+    query(socket)
+  end
+end
+
+QueryLoop.query(socket)
+Process.sleep(15000)