get all of messages in discord channel using discord api

hi im working on discord api
and for one section need to get all messages from channel

problem discord api limit : discord have limit to get messages return just 100 message

for give more messages need before query and id
im 80 % pass this limitaion but code need imporove

discord api doc 

import axios from "axios";



const api = axios.create({
    baseURL:"https://discord.com/api/v9/",
    headers:{
        Authorization:"xxxx-xxxx--xxxx"
    }
});
let contents = [];

async function getContent (query="limit=100"):Promise<[]> {
    try {
        const content = await api.get(`/channels/111654654546541585/messages?${query}`);
        return content.data;
        
    } catch (error) {
        throw "[ERROR] - Request error from axios";
    }
    
}


function scrapData(slice:[], cbf:()=>void){
    if (slice.length == 0) {
        cbf();
        return;
    }
    slice.map(async (content:content, index) => {
        contents.push(content.content);
        if(index == slice.length - 1) {
            const newSlice = await getContent(`before=${content.id}&limit=100`);
            setTimeout(()=> scrapData(newSlice, cbf),3000);
        }
    })  
}


getContent().then( (data) => {
    scrapData(data, ()=> {console.log(contents)})
})