问题说明
在调用http.begin(client, "https://api.seniverse.com/v3/weather/now.json?key=your_private_key&location=beijing&language=zh-Hans&unit=c")函数时报错
<html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx</center>
</body>
</html>
解决方案
调用http.begin(client, host, 80, urlDate);
如下
String urlDate = "/v3/weather/daily.json?key="+my_private_key+"&location="+City+"&language=zh-Hans&unit=c";
http.begin(client, "api.seniverse.com",80,urlDate);