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node-redis/packages/client/lib/commands/XPENDING_RANGE.ts
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TypeScript

import { CommandParser } from '../client/parser';
import { RedisArgument, ArrayReply, TuplesReply, BlobStringReply, NumberReply, UnwrapReply, Command } from '../RESP/types';
/**
* Options for the XPENDING RANGE command
*
* @property IDLE - Filter by message idle time in milliseconds
* @property consumer - Filter by specific consumer name
*/
export interface XPendingRangeOptions {
IDLE?: number;
consumer?: RedisArgument;
}
/**
* Raw reply structure for XPENDING RANGE command
*
* @property id - Message ID
* @property consumer - Name of the consumer that holds the message
* @property millisecondsSinceLastDelivery - Time since last delivery attempt
* @property deliveriesCounter - Number of times this message was delivered
*/
type XPendingRangeRawReply = ArrayReply<TuplesReply<[
id: BlobStringReply,
consumer: BlobStringReply,
millisecondsSinceLastDelivery: NumberReply,
deliveriesCounter: NumberReply
]>>;
export default {
CACHEABLE: true,
IS_READ_ONLY: true,
/**
* Constructs the XPENDING command with range parameters to get detailed information about pending messages
*
* @param parser - The command parser
* @param key - The stream key
* @param group - Name of the consumer group
* @param start - Start of ID range (use '-' for minimum ID)
* @param end - End of ID range (use '+' for maximum ID)
* @param count - Maximum number of messages to return
* @param options - Additional filtering options
* @returns Array of pending message details
* @see https://redis.io/commands/xpending/
*/
parseCommand(
parser: CommandParser,
key: RedisArgument,
group: RedisArgument,
start: RedisArgument,
end: RedisArgument,
count: number,
options?: XPendingRangeOptions
) {
parser.push('XPENDING');
parser.pushKey(key);
parser.push(group);
if (options?.IDLE !== undefined) {
parser.push('IDLE', options.IDLE.toString());
}
parser.push(start, end, count.toString());
if (options?.consumer) {
parser.push(options.consumer);
}
},
/**
* Transforms the raw XPENDING RANGE reply into a structured array of message details
*
* @param reply - Raw reply from Redis
* @returns Array of objects containing message ID, consumer, idle time, and delivery count
*/
transformReply(reply: UnwrapReply<XPendingRangeRawReply>) {
return reply.map(pending => {
const unwrapped = pending as unknown as UnwrapReply<typeof pending>;
return {
id: unwrapped[0],
consumer: unwrapped[1],
millisecondsSinceLastDelivery: unwrapped[2],
deliveriesCounter: unwrapped[3]
};
});
}
} as const satisfies Command;