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Common Query Parameters
All Query actions share a set of common parameters that must be present in each call.
| Name | Description | Required |
|---|---|---|
|
|
Indicates the action to perform. Example: | Yes |
|
|
The API version to use, as specified in the WSDL. Example: | Yes |
|
|
The access key ID for the request sender. This identifies the account which will be charged for usage of the service. The account that's associated with the access key ID must be signed up for Amazon EC2, or the request isn't accepted.
| Yes |
|
|
The date and time at which the request is signed, in the format YYYY-MM-DDThh:mm:ssZ. For more information, see ISO 8601. Example: | Yes |
|
|
The date and time at which the signature included in the request expires, in the format YYYY-MM-DDThh:mm:ssZ. Example: | Yes |
|
|
The temporary security token obtained through a call to AWS Security Token Service. For more information, see Using Temporary Security Credentials in the Amazon Elastic Compute Cloud User Guide. Default: None Type: String | No |
|
|
The request signature. For more information, see Signature Version 2 Signing Process in the Amazon Web Services General Reference. Example: | Yes |
|
|
The hash algorithm you use to create the
request signature. Valid values:
Example: |
Yes |
|
|
The signature version you use to sign the request. Set this value to Example: |
Yes |
Note
The Timestamp parameter
can be used instead of Expires. Requests must include either
Timestamp or Expires, but cannot contain both.
Parameter values must be URL-encoded. This is true for any Query
parameter passed to Amazon EC2 and is typically necessary in the
Signature parameter. Some
clients do this automatically, but this is not the norm.
