Common request parameters

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The Alibaba Cloud Visual Intelligence API provides RPC API operations. You must include common request parameters in each API request.

Request example

http://videoenhan.cn-shanghai.aliyuncs.com/?Signature=NAxwl1W9ROkidJfGeZrsKUXw%2BQ****
&AccessKeyId=testId
&Action=AdjustVideoColor
&Format=JSON
&RegionId=cn-shanghai
&SignatureMethod=HMAC-SHA1
&SignatureNonce=313ef0fb-0393-464f-a6e2-59d9ca2585b1
&SignatureVersion=1.0
&Timestamp=2020-03-10T08%3A18%3A18Z
&Version=2020-03-20

Request parameters

Name

Type

Required

Description

Signature

String

Yes

The request signature string. For more information about how to generate the signature, see Request signature.

AccessKeyId

String

Yes

The ID of the AccessKey used to access the service. For more information, see Create an AccessKey.

Action

String

Yes

The name of the API operation.

Format

String

No

The format of the response message.

Valid values: JSON (default) and XML.

RegionId

String

No

The ID of the region.

Example: cn-shanghai.

SignatureMethod

String

Yes

The signature method.

Valid value: HMAC-SHA1.

SignatureNonce

String

Yes

A unique random number for the signature to prevent replay attacks. Use a different random number for each request. In Java, use java.util.UUID.randomUUID() to generate this number.

SignatureVersion

String

Yes

The version of the signature algorithm.

Valid value: 1.0.

Timestamp

String

Yes

The timestamp of the request. The timestamp must be in UTC and in the ISO 8601 standard format: YYYY-MM-DDThh:mm:ssZ.

For example, 2019-10-13T10:00:00Z corresponds to 18:00:00 on October 13, 2019 (UTC+8).

Version

String

Yes

The version number of the API in YYYY-MM-DD format.

Valid value: 2020-03-20.