add an aws chalice integration

pyproject.toml

@@ -29,6 +29,7 @@ django = {version = ">=2,<4", optional = true}
 graphql-core = {version = "^3.1.0"}
 asgiref = {version = "^3.2", optional = true}
 flask = {version = "^1.1", optional = true}
+chalice = {version = "^1.22", optional = true}
 typing_extensions = "^3.7.4"
 opentelemetry-api = {version = "^0.17b0", optional = true}
 opentelemetry-sdk = {version = "^0.17b0", optional = true}
@@ -80,6 +81,7 @@ flask = ["flask", "pytest-flask"]
 opentelemetry = ["opentelemetry-api", "opentelemetry-sdk"]
 pydantic = ["pydantic"]
 sanic = ["sanic"]
+chalice = ["chalice"]
 
 [tool.poetry.scripts]
 strawberry = "strawberry.cli:run"

strawberry/chalice/graphiql.py

@@ -0,0 +1,23 @@
+import functools
+from os.path import abspath, dirname, join
+
+
+@functools.lru_cache()
+def render_graphiql_page() -> str:
+    """
+    Loads the graphiql html file into a string and returns it. Replacing subscription
+    enabled as false, this is because this chalice integration does not currently support
+    subscriptions. This function returns a static result, so cache it in ram, saving us
+    from loading the file from disk each time.
+    Returns:
+        A cached string containing a static graphiql page.
+    """
+    dir_path = abspath(join(dirname(__file__), ".."))
+    graphiql_html_file = f"{dir_path}/static/graphiql.html"
+
+    html_string = None
+
+    with open(graphiql_html_file, "r") as f:
+        html_string = f.read()
+
+    return html_string.replace("{{ SUBSCRIPTION_ENABLED }}", "false")