From a644ecfd0fb67870ac3f3a13476aa0accec74d28 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Sun, 3 Jun 2018 08:11:07 +0200
Subject: Fill in the options types instead of using map()

---
 doc/src/manual/gun.asciidoc |  2 +-
 src/gun.erl                 | 31 ++++++++++++++++++++++++++-----
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/doc/src/manual/gun.asciidoc b/doc/src/manual/gun.asciidoc
index 77253ba..45f65ab 100644
--- a/doc/src/manual/gun.asciidoc
+++ b/doc/src/manual/gun.asciidoc
@@ -150,7 +150,7 @@ opts() :: #{
     retry_timeout   => pos_integer(),
     trace           => boolean(),
     transport       => tcp | ssl,
-    transport_opts  => [gen_tcp:connect_option()] | [ssl:connect_option()]
+    transport_opts  => [gen_tcp:connect_option()] | [ssl:connect_option()],
     ws_opts         => ws_opts()
 }
 ----
diff --git a/src/gun.erl b/src/gun.erl
index bad1418..badd691 100644
--- a/src/gun.erl
+++ b/src/gun.erl
@@ -91,21 +91,42 @@
 	| {text | binary | close | ping | pong, iodata()}
 	| {close, ws_close_code(), iodata()}.
 
--type opts() :: map().
+-type opts() :: #{
+    connect_timeout => timeout(),
+    http_opts       => http_opts(),
+    http2_opts      => http2_opts(),
+    protocols       => [http | http2],
+    retry           => non_neg_integer(),
+    retry_timeout   => pos_integer(),
+    trace           => boolean(),
+    transport       => tcp | ssl,
+    transport_opts  => [gen_tcp:connect_option()] | [ssl:connect_option()],
+    ws_opts         => ws_opts()
+}.
 -export_type([opts/0]).
 %% @todo Add an option to disable/enable the notowner behavior.
 
--type req_opts() :: map().
+-type req_opts() :: #{
+    reply_to => pid()
+}.
 -export_type([req_opts/0]).
 
--type http_opts() :: map().
+-type http_opts() :: #{
+    keepalive             => timeout(),
+    transform_header_name => fun((binary()) -> binary()),
+    version               => 'HTTP/1.1' | 'HTTP/1.0'
+}.
 -export_type([http_opts/0]).
 
--type http2_opts() :: map().
+-type http2_opts() :: #{
+    keepalive => timeout()
+}.
 -export_type([http2_opts/0]).
 
 %% @todo keepalive
--type ws_opts() :: map().
+-type ws_opts() :: #{
+    compress => boolean()
+}.
 -export_type([ws_opts/0]).
 
 -record(state, {
-- 
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