@spec get_credential(
  name :: binary(),
  policy :: map(),
  region :: binary(),
  opts :: [
    expired_at: DateTime.t(),
    expire_in: COS.Utils.expire_in(),
    tesla_opts: Tesla.Env.opts()
  ]
) :: Tesla.Env.t()

获取联合身份临时访问凭证 - 腾讯云文档

示例

示例

iex> COS.STS.get_credential(
       "cos-sts-elixir",
       %{
         version: "2.0",
         statement: [
           %{
             effect: "allow",
             action: ["cos:PutObject"],
             resource: ["qcs::cos:ap-beijing:uid/1250000000:bucket-1250000000/*"]
           }
         ]
       },
       "ap-beijing"
     )
{:ok, %Tesla.Env{
  body: %{
    "credentials" => %{
      "token" => "xxx",
      ...
    }
  },
  ...
}}

iex> COS.STS.get_credential(
       "cos-sts-elixir",
       %{
         version: "2.0",
         statement: [
           %{
             effect: "allow",
             action: ["cos:PutObject"],
             resource: ["invalid resouce"]
           }
         ]
       },
       "ap-beijing"
     )
{:error, %Tesla.Env{
  body: %{
    "error" => %{
      "code" => "InvalidParameter.ResouceError",
      "message" => "resource error"
    }
    "request_id" => "6734caac-d3bf-4465-adf3-2e300e5063ce"
  },
  ...
}}