Unban command

Since we added a ban command to our bot we also need an unban command.

For this we need our base command that uses arguments you can find the base in our ban command guide.

Now we need to add checks.

We will add the variable type check and the permission check we used for the ban command:

client.on("message", async (message) => {
    if (typeof message.content != "string") return;
    if (message.content.startsWith(prefix + "unban")) {
        if (message.member.hasPermission(message.channel.server, "BanMembers") === false) {
            return message.channel.sendMessage("You don't have the permission to unban.");
        }
    }
});

We will also add the target_id variable used in the ban command:

let target_id = message.content.split(' ')[1];

Now we have to check if the target is banned.

We do this by fetching all the server bans and checking if the target is/is not in that list.

if (!await (await message.channel.server.fetchBans()).bans.find(b => b._id.user === target_id)) {
}
if (await (await message.channel.server.fetchBans()).bans.find(b => b._id.user === target_id)) {
}

Now we add messages that show if the target is banned or not and add the unban function to the successful if statement:

if (!await (await message.channel.server.fetchBans()).bans.find(b => b._id.user === target_id)) {
    message.channel.sendMessage(`<@${target_id}> is not banned.`);
}
if (await (await message.channel.server.fetchBans()).bans.find(b => b._id.user === target_id)) {
    message.channel.server.unbanUser(target_id);
    message.channel.sendMessage(`<@${target_id}> has been unbanned.`);
}

The complete command

The complete unban command should look something like this:

client.on("message", async (message) => {
    if (typeof message.content != "string") return;
    if (message.content.startsWith(prefix + "unban")) {
        if (message.member.hasPermission(message.channel.server, "BanMembers") === false) {
            return message.channel.sendMessage("You don't have the permission to unban.");
        }
    }
    if (!await (await message.channel.server.fetchBans()).bans.find(b => b._id.user === target_id)) {
        message.channel.sendMessage(`<@${target_id}> is not banned.`);
    }
    if (await (await message.channel.server.fetchBans()).bans.find(b => b._id.user === target_id)) {
        message.channel.server.unbanUser(target_id);
        message.channel.sendMessage(`<@${target_id}> has been unbanned by <@${message.author_id}>.`);
    }
});