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del-command.ts
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del-command.ts
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import { Logger } from "../../../logger";
import { IRequest } from "../../../server/request";
import { DataType } from "../../data/data-type";
import { Database } from "../../data/database";
import { RedisToken } from "../../protocol/redis-token";
import { IRespCommand } from "../resp-command";
/**
* Available since v1.0.0
*
* DEL key [key...]
* Removes the specified keys. A key is ignored if it does not exist.
*
* RETURNS:
* Integer reply: The number of keys that were removed.
*/
export class DelCommand extends IRespCommand {
public maxParams = -1
public minParams = 1
public name = "del"
private logger: Logger = new Logger(module.id);
public execSync(request: IRequest, db: Database): RedisToken {
this.logger.debug(
`${request.getCommand()}.execute(%s)`,
...request.getParams()
);
let counter = 0;
for (const key of request.getParams()) {
if (db.remove(key)) {
++counter;
}
}
return RedisToken.integer(counter);
}
}