post method
Implementation
Future<String> post(
String url,
Object body, {
Map<String, String> headers = const {},
bool readCache = true,
bool writeCache = true,
Duration? ttl,
String Function(List<int>)? defaultCharset,
String Function(List<int>)? forcedCharset,
}) =>
postUri(Uri.parse(url), body,
headers: headers,
readCache: readCache,
writeCache: writeCache,
ttl: ttl,
defaultCharset: defaultCharset,
forcedCharset: forcedCharset);