buildCanonicalHeaders static method
Implementation
static String buildCanonicalHeaders(Map<String, String> headers) {
final List<String> sortedKeys = [];
headers.forEach((property, _) {
sortedKeys.add(property);
});
var canonicalHeaders = '';
sortedKeys.sort((a, b) => a.toLowerCase().compareTo(b.toLowerCase()));
for (var property in sortedKeys) {
canonicalHeaders += '${property.toLowerCase()}:${headers[property]}\n';
}
return canonicalHeaders;
}