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index.js
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index.js
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import { initializeApp } from "https://www.gstatic.com/firebasejs/9.15.0/firebase-app.js"
import { getDatabase, ref, push, onValue, remove } from "https://www.gstatic.com/firebasejs/9.15.0/firebase-database.js"
const appSettings = {
databaseURL: "https://endorsement-3b728-default-rtdb.firebaseio.com/"
}
const app = initializeApp(appSettings)
const database = getDatabase(app)
const endorsementInDB = ref(database, "publications")
onValue(endorsementInDB, function(snapshot) {
if (snapshot.exists()) {
let itemArr = Object.entries(snapshot.val())
cleanEndorsementWrap()
for (let i = 0; i < itemArr.length; i++) {
let currentItem = itemArr[i]
renderEndorsement(currentItem)
}
} else {
endorsementWrap.innerHTML = `No endorsement yet.`
}
})
const inputEl = document.getElementById("input-el")
const publishBtn = document.getElementById("publish-btn")
const endorsementWrap = document.getElementById("endorsement-wrap")
publishBtn.addEventListener("click", function() {
let inputValue = inputEl.value
push(endorsementInDB, inputValue)
cleanInput()
})
function renderEndorsement(item) {
let itemID = item[0]
let itemValue = item[1]
const LI = document.createElement("LI")
LI.classList.add("endorsement__item")
LI.textContent = itemValue
LI.addEventListener("click", function() {
let exactLocationInDB = ref(database, `publications/${itemID}`)
remove(exactLocationInDB)
})
endorsementWrap.append(LI)
}
function cleanEndorsementWrap() {
endorsementWrap.innerHTML = ""
}
function cleanInput() {
inputEl.value = ""
}