Send param to fetch in getInitialProps react and nextjs - reactjs

Question

I 'm traying to send a param to getInitialProp function to made the fecth to the correct json.
here is my code:
hepler.js --> here I made the fetch per se.
export async function getEvents() {
const res = await fetch("https://url/eventos.json");
let new_data = await res.json();
return { events: new_data.data };
}
export async function getDetails(slug) {
const res = await fetch(`https://myurl/${slug}.json`);
let data_detail_event = await res.json();
return { data_detail_event };
}
_app.js // here I have the getInitialProps and works great
import App from "next/app";
import ContextProvider from "../provider/ContextProvider";
import fetch from "isomorphic-unfetch";
import {getEvents, getDetails} from '../helper/index'
export default class MyApp extends App {
static async getInitialProps() {
const events = await getEvents();
return {
events : events.events
};
}
render() {
const { Component, pageProps } = this.props;
return (
<div>
<ContextProvider events={this.props.events} >
<Component {...pageProps} />
</ContextProvider>
</div>
);
}
}
pages/[id].js
import { useRouter } from "next/router";
import Context from "../../config/Context";
/* Components */
import WordCounter from "../../components/word-counter/WordCounter";
function Post(props) {
const router = useRouter();
const context = React.useContext(Context);
return (
<React.Fragment>
<WordCounter />
</React.Fragment>
);
}
Post.getInitialProps = async ({ query}) => {
const detail = await getDetail(query.id) --> here I send the param and it seems never arrive to helper.js, why?
return {detail}
}
export default Post
Where is the problem? HELP!
THAANKS!

Answer 1

i think getInitialProps run in server and your helper function doesn't load there.
use fetch inside getInitialProps .