我正在尝试使用 Erlang ddb 模块与亚马逊的 DynamoDB 进行交互,但在尝试设置时遇到了一个奇怪的错误。我调用 ddb_iam:credentials() 并返回“ok”,但 ddb_iam:token() 函数崩溃并出现如下错误:(此示例直接取自手册页。
ddb_iam:credentials(AccessKey, SecretKey).
{ok, Key, Secret, Token} = ddb_iam:token(129600).
** exception error: bad argument
in function ets:lookup/2
called as ets:lookup(ibrowse_lb,{"sts.amazonaws.com",443})
in call from ibrowse:send_req/6 (src/ibrowse.erl, line 313)
in call from ddb_aws:retry/4 (src/ddb_aws.erl, line 50)
in call from ddb_iam:token/1 (src/ddb_iam.erl, line 63)
8>