ConditionCheck
import type { ConditionCheck } from "https://aws-api.deno.dev/v0.3/services/dynamodb.ts?docs=full";Represents a request to perform a check that an item exists or to check the condition of specific attributes of the item.
interface ConditionCheck {
ConditionExpression: string;
ExpressionAttributeNames?: {} | null;
[key: string]: string | null | undefined;
ExpressionAttributeValues?: {} | null;
[key: string]: AttributeValue | null | undefined;
Key: {};
[key: string]: AttributeValue | null | undefined;
ReturnValuesOnConditionCheckFailure?: ReturnValuesOnConditionCheckFailure | null;
TableName: string;
}§Properties
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ConditionExpression: string
[src]A condition that must be satisfied in order for a conditional update to succeed.
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ExpressionAttributeNames?: {} | null
[src][key: string]: string | null | undefined;
One or more substitution tokens for attribute names in an expression.
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ExpressionAttributeValues?: {} | null
[src][key: string]: AttributeValue | null | undefined;
One or more values that can be substituted in an expression.
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Key: {}
[src][key: string]: AttributeValue | null | undefined;
The primary key of the item to be checked. Each element consists of an attribute name and a value for that attribute.
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ReturnValuesOnConditionCheckFailure?: ReturnValuesOnConditionCheckFailure | null
[src]Use ReturnValuesOnConditionCheckFailure to get the item attributes if the ConditionCheck condition fails.
For ReturnValuesOnConditionCheckFailure, the valid values are: NONE and ALL_OLD.