Firebase dynamic link support custom parameters?

Question

I am writing a App for a Open Source Conference.

Originally each attendees will receive different link via email or SMS like

https://example.com/?token=fccfc

Answer 1

For web apps, which generating dynamic links.

const data = {
  dynamicLinkInfo: {
    domainUriPrefix: 'subdomain.page.link',
    link: url,
  },
  suffix: {
    option: 'SHORT'
  }
};
return fetch(`https://firebasedynamiclinks.googleapis.com/v1/shortLinks?key=${environment.firebaseConfig.apiKey}`, {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify(data),
}).then(res => res.json()).then(response => response.shortLink).catch(console.error);