methodFromString function
Implementation
Method methodFromString(String method) {
switch (method) {
case "HEAD":
return Method.HEAD;
case "GET":
return Method.GET;
case "POST":
return Method.POST;
case "PUT":
return Method.PUT;
case "PATCH":
return Method.PATCH;
case "DELETE":
return Method.DELETE;
}
throw ArgumentError.value(method, "method", "Must be a valid HTTP Method.");
}