24 lines
804 B
JavaScript
24 lines
804 B
JavaScript
let lastTimestamp = '1970-01-01 00:00:00';
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function fetchMessages() {
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var xhr = new XMLHttpRequest();
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xhr.open("GET", `./php/fetchMessages.php?last_timestamp=${encodeURIComponent(lastTimestamp)}`, true);
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xhr.onreadystatechange = function () {
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if (xhr.readyState === 4 && xhr.status === 200) {
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const response = JSON.parse(xhr.responseText);
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const messages = response.messages;
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lastTimestamp = response.latest_timestamp;
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const messageList = document.getElementById("messageList");
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messages.forEach(msg => {
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const newMessage = document.createElement("li");
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newMessage.innerHTML = msg;
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messageList.insertBefore(newMessage, messageList.firstChild);
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});
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}
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};
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xhr.send();
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}
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setInterval(fetchMessages, 1000); |