I am creating a university project to display events that are happening in Leeds. So far I have been able to show information about the event, but I also want to show the venue name which uses a different method.
I've managed to get a venue's name through the venue ID that's found in the event information, and these are showing correctly in the console. I now want to be able to show the venueNam
e in the HTML template of ui.js. I think it is a simple problem, I just can't figure it out!
eventbrite.js
class EventBrite {
constructor() {
this.auth_token = 'Example';
this.orderby = 'date';
this.city = 'Leeds';
}
//Load Leeds events from API
async loadAPI() {
const initalEvents = await fetch(`https://www.eventbriteapi.com/v3/events/search/?sort_by=${this.orderby}&location.address=${this.city}&token=${this.auth_token}`);
const events = await initalEvents.json();
return {
events
}
}
async loadVenue(venueID) {
const initalVenue = await fetch(`https://www.eventbriteapi.com/v3/venues/${venueID}/?token=${this.auth_token}`);
const venue = await initalVenue.json();
return venue;
}
}
app.js
const eventbrite = new EventBrite();
const ui = new UI();
eventbrite.loadAPI()
.then(events => {
//Check for events
const eventsList = events.events.events;
//Print venue IDs
for(let i = 0, l = eventsList.length; i < l; i++) {
const venueID = eventsList[i].venue_id;
eventbrite.loadVenue(venueID)
.then(venue => {
const venueName = venue.name;
})
}
ui.displayEvents(eventsList);
}
)
ui.js
class UI {
constructor() {
this.init();
}
init() {
this.printCategories();
this.result = document.getElementById('result');
}
//Display events
displayEvents(events) {
//Build template
let HTMLTemplate = '';
events.forEach(eventInfo => {
HTMLTemplate += `
<div class="row">
<div class="column">
<p class="event">${eventInfo.name.text}</p>
<p class="event">${eventInfo.start.local}</p>
</div>
</div>
`;
});
this.result.innerHTML = HTMLTemplate;
}
}
I think this should work:
eventbrite.loadAPI()
.then(async events => {
//Check for events
const eventsList = events.events.events;
//Print venue IDs
for(let i = 0, l = eventsList.length; i < l; i++) {
const venueID = eventsList[i].venue_id;
let venue = await eventbrite.loadVenue(venueID);
eventsList[i].venue = venue.name
}
ui.displayEvents(eventsList);
}
)
But note: This code is blocking. Venues are loaded once by once. To take them all, at the same time, you should look for a solution with Promise.all
Edit: Example with Promise all
eventbrite.loadAPI().then(events => {
//Check for events
const eventsList = events.events.events;
let venuesPromises = eventsList.map(x => eventbrite.loadVenue(x.venue_id))
return Promise.all(venuesPromises).then(x => {
//x should contain all venues for the events.
const events_with_venues = 1 //TODO: merge events with venues
return events_with_venues
})
})