From 1e1837000d3c9697960e99050260c6e9f1754a84 Mon Sep 17 00:00:00 2001
From: Otto Winter <otto@otto-winter.com>
Date: Tue, 5 Nov 2019 22:27:35 +0100
Subject: [PATCH] Fix homeassistant.service schema lambda (#833)

* Fix homeassistant.service schema lambda

Fixes https://github.com/esphome/issues/issues/820

* Improve

* Fix
---
 esphome/components/api/__init__.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/esphome/components/api/__init__.py b/esphome/components/api/__init__.py
index 43c7d71e74..a0568863ad 100644
--- a/esphome/components/api/__init__.py
+++ b/esphome/components/api/__init__.py
@@ -70,14 +70,14 @@ def to_code(config):
     cg.add_global(api_ns.using)
 
 
-KEY_VALUE_SCHEMA = cv.Schema({cv.string: cv.templatable(cv.string)})
+KEY_VALUE_SCHEMA = cv.Schema({cv.string: cv.templatable(cv.string_strict)})
 
 HOMEASSISTANT_SERVICE_ACTION_SCHEMA = cv.Schema({
     cv.GenerateID(): cv.use_id(APIServer),
     cv.Required(CONF_SERVICE): cv.templatable(cv.string),
     cv.Optional(CONF_DATA, default={}): KEY_VALUE_SCHEMA,
     cv.Optional(CONF_DATA_TEMPLATE, default={}): KEY_VALUE_SCHEMA,
-    cv.Optional(CONF_VARIABLES, default={}): KEY_VALUE_SCHEMA,
+    cv.Optional(CONF_VARIABLES, default={}): cv.Schema({cv.string: cv.returning_lambda}),
 })