diff --git a/frontend_tests/node_tests/user_status.js b/frontend_tests/node_tests/user_status.js
index 97afb1130b..ccc643bafc 100644
--- a/frontend_tests/node_tests/user_status.js
+++ b/frontend_tests/node_tests/user_status.js
@@ -8,6 +8,23 @@ const blueslip = require("../zjsunit/zblueslip");
 
 const channel = mock_esm("../../static/js/channel");
 const user_status = zrequire("user_status");
+const emoji_codes = zrequire("../generated/emoji/emoji_codes.json");
+const emoji = zrequire("../shared/js/emoji");
+const {page_params} = require("../zjsunit/zpage_params");
+
+const emoji_params = {
+    realm_emoji: {
+        991: {
+            id: "991",
+            name: "realm_emoji",
+            source_url: "/url/for/991",
+            deactivated: false,
+        },
+    },
+    emoji_codes,
+};
+
+emoji.initialize(emoji_params);
 
 function initialize() {
     const params = {
@@ -15,11 +32,115 @@ function initialize() {
             1: {away: true, status_text: "in a meeting"},
             2: {away: true},
             3: {away: true},
+            4: {emoji_name: "smiley", emoji_code: "1f603", reaction_type: "unicode_emoji"},
         },
     };
     user_status.initialize(params);
 }
 
+run_test("get_extra_emoji_info", () => {
+    page_params.emojiset = "text";
+
+    let emoji_info = {};
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {});
+
+    emoji_info = {emoji_name: "smile"};
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "smile",
+        emoji_alt_code: true,
+    });
+
+    page_params.emojiset = "google";
+
+    // Test adding an unicode_emoji.
+    emoji_info = {emoji_name: "smile", emoji_code: "1f642", reaction_type: "unicode_emoji"};
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "smile",
+        emoji_alt_code: false,
+        reaction_type: "unicode_emoji",
+        emoji_code: "1f642",
+    });
+
+    // Test adding an unicode_emoji's name only.
+    // It should fill in other details automatically.
+    emoji_info = {emoji_name: "smile"};
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "smile",
+        emoji_alt_code: false,
+        reaction_type: "unicode_emoji",
+        emoji_code: "1f642",
+    });
+
+    // Test adding zulip emoji.
+    emoji_info = {emoji_name: "zulip", emoji_code: "zulip", reaction_type: "zulip_extra_emoji"};
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "zulip",
+        emoji_alt_code: false,
+        reaction_type: "zulip_extra_emoji",
+        emoji_code: "zulip",
+        url: "/static/generated/emoji/images/emoji/unicode/zulip.png",
+    });
+
+    // Test adding zulip emoji's name only.
+    emoji_info = {emoji_name: "zulip"};
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "zulip",
+        emoji_alt_code: false,
+        reaction_type: "zulip_extra_emoji",
+        emoji_code: "zulip",
+        url: "/static/generated/emoji/images/emoji/unicode/zulip.png",
+    });
+
+    // Test adding realm_emoji emoji.
+    emoji_info = {
+        emoji_name: "realm_emoji",
+        emoji_code: "991",
+        reaction_type: "realm_emoji",
+    };
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "realm_emoji",
+        emoji_alt_code: false,
+        reaction_type: "realm_emoji",
+        emoji_code: "991",
+        url: "/url/for/991",
+    });
+
+    // Test adding only realm_emoji's name only.
+    // It should fill in other details automatically.
+    emoji_info = {
+        emoji_name: "realm_emoji",
+    };
+
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {
+        emoji_name: "realm_emoji",
+        emoji_alt_code: false,
+        reaction_type: "realm_emoji",
+        emoji_code: "991",
+        url: "/url/for/991",
+    });
+
+    // Test sending an unknown emoji.
+    emoji_info = {emoji_name: "unknown-emoji"};
+    blueslip.expect("warn", "Bad emoji name: " + emoji_info.emoji_name);
+    emoji_info = user_status.get_emoji_info(emoji_info);
+    assert.deepEqual(emoji_info, {});
+});
+
 run_test("basics", () => {
     initialize();
     assert.ok(user_status.is_away(2));
diff --git a/static/js/user_status.js b/static/js/user_status.js
index bd42f85b7e..525283640e 100644
--- a/static/js/user_status.js
+++ b/static/js/user_status.js
@@ -1,5 +1,8 @@
+import * as emoji from "../shared/js/emoji";
+
 import * as blueslip from "./blueslip";
 import * as channel from "./channel";
+import {page_params} from "./page_params";
 
 const away_user_ids = new Set();
 const user_info = new Map();
@@ -42,6 +45,44 @@ export function revoke_away(user_id) {
     away_user_ids.delete(user_id);
 }
 
+// This function will add missing/extra parameters to the emoji info object,
+// that would need by template to render an emoji.
+export function get_emoji_info(emoji_info) {
+    // To call this function you must pass at least an emoji name.
+    if (!emoji_info || !emoji_info.emoji_name) {
+        return {};
+    }
+
+    const status_emoji_info = {...emoji_info};
+
+    status_emoji_info.emoji_alt_code = page_params.emojiset === "text";
+    if (status_emoji_info.emoji_alt_code) {
+        return status_emoji_info;
+    }
+
+    if (emoji.active_realm_emojis.has(emoji_info.emoji_name)) {
+        if (!emoji_info.reaction_type) {
+            if (emoji_info.emoji_name === "zulip") {
+                status_emoji_info.reaction_type = "zulip_extra_emoji";
+            } else {
+                status_emoji_info.reaction_type = "realm_emoji";
+            }
+        }
+        const more_emoji_info = emoji.active_realm_emojis.get(emoji_info.emoji_name);
+        status_emoji_info.emoji_code = emoji_info.emoji_code || more_emoji_info.id;
+        status_emoji_info.url = more_emoji_info.emoji_url;
+    } else {
+        const codepoint = emoji.get_emoji_codepoint(emoji_info.emoji_name);
+        if (codepoint === undefined) {
+            blueslip.warn("Bad emoji name: " + emoji_info.emoji_name);
+            return {};
+        }
+        status_emoji_info.reaction_type = emoji_info.reaction_type || "unicode_emoji";
+        status_emoji_info.emoji_code = emoji_info.emoji_code || codepoint;
+    }
+    return status_emoji_info;
+}
+
 export function is_away(user_id) {
     return away_user_ids.has(user_id);
 }