Batch Compute uses the common Alibaba Cloud signature method for access authorization. That is, the request header contains a field prefixed with “x-acs”, and the signature is calculated and compared for user authentication. Required fields in a header are listed as follows:
Standard headers
Name | Type | Description |
Authorization | String | Signature content. This field is required. A signature is not required for this field. For more information, see Signature. |
Content-Length | Number | Actual length of the request in the body. If the request is compressed before transmission, this field is the size of the request after compression. If the request has no body, this field is 0.A signature is not required for this field. |
Content-MD5 | String | It is the string produced after the request body is calculated with MD5. The calculation result is in uppercase. If the request has no body, skip this field. |
Content-Type | String | Body type. The value is a string. The options are application/json and application/json-rpc. The default value is application/json.If the request has no body, skip this field. |
Date | String | Current sending time. Currently, this field must be in RFC 822 format, using GMT. The format is %a, %d %b %Y %H:%M:%S GMT, for example, Mon, 3 Jan 2010 08:33:47 GMT. The maximum difference between the time indicated by Date and the time when the server receives the request is 15 minutes. If the difference exceeds 15 minutes, the request is rejected. |
Accept | String | Return value required by the client. The options are application/json and application/json-rpc. By default, this field is not specified. |
Host | String | Complete name (without http://) of the request host, for example, batchcompute.cn-qingdao.aliyuncs.com. |
Custom headers
Name | Type | Description |
x-acs-version | String | Current API version, for example, x.x.x. |
x-acs-compress-type | String | Compression type. Currently, only the deflate type is supported. This field is left unspecified if the request is not compressed. |
x-acs-body-rawsize | Number | Original body size. This field is used for decompression. If the request has no body, this field is 0. The value ranges from 0 KB to 256 KB. |
x-acs-signature-method | String | Signature calculation method. Currently, “hmac-sha1” is supported. For more information about the signature calculation method, see Signature. |
x-acs-signature-nonce | String | A unique random number, used to prevent replay attacks. You must use different random numbers for different requests. |
x-acs-access-id | String | AccessId used to access Batch Compute. By default, this field is not specified. |
x-acs-request-id | String | Request ID that is automatically generated for log tracing. |