uploadCrossSigningSignatures method

Future<Map<String, Map<String, Map<String, Object?>>>?> uploadCrossSigningSignatures(Map<String, Map<String, Map<String, Object?>>> body)

Publishes cross-signing signatures for the user.

The signed JSON object must match the key previously uploaded or retrieved for the given key ID, with the exception of the signatures property, which contains the new signature(s) to add.

body A map from user ID to key ID to signed JSON objects containing the signatures to be published.

returns failures: A map from user ID to key ID to an error for any signatures that failed. If a signature was invalid, the errcode will be set to M_INVALID_SIGNATURE.

Implementation

Future<Map<String, Map<String, Map<String, Object?>>>?>
    uploadCrossSigningSignatures(
  Map<String, Map<String, Map<String, Object?>>> body,
) async {
  final requestUri = Uri(path: '_matrix/client/v3/keys/signatures/upload');
  final request = Request('POST', baseUri!.resolveUri(requestUri));
  request.headers['authorization'] = 'Bearer ${bearerToken!}';
  request.headers['content-type'] = 'application/json';
  request.bodyBytes = utf8.encode(
    jsonEncode(
      body.map((k, v) => MapEntry(k, v.map((k, v) => MapEntry(k, v)))),
    ),
  );
  final response = await httpClient.send(request);
  final responseBody = await response.stream.toBytes();
  if (response.statusCode != 200) unexpectedResponse(response, responseBody);
  final responseString = utf8.decode(responseBody);
  final json = jsonDecode(responseString);
  return ((v) => v != null
      ? (v as Map<String, Object?>).map(
          (k, v) => MapEntry(
            k,
            (v as Map<String, Object?>)
                .map((k, v) => MapEntry(k, v as Map<String, Object?>)),
          ),
        )
      : null)(json['failures']);
}