Why is the following code not adding a role to the user? - discord

Question

In the following code, i am trying to add a role to a user whenever a user reacts the "A" emoji to a specific message. However, when I react to the message, I only see the console log Role Added1, meaning the thread is stuck in the line trying assigning roles to the user. What have I done wrong in the following code causing the error?
bot.on("raw", event => {
const eventName = event.t;
if(eventName == "MESSAGE_REACTION_ADD"){
var roles = JSON.parse(fs.readFileSync("roles.json"));
var info = JSON.parse(fs.readFileSync("info.json"))
if(event.d.message_id == info["Class Message"]){//class selection
switch(event.d.emoji.name){
case "🇦":
console.log("Role Added1");
event.d.member.roles.add(bot.guilds.cache.get("721695624613068830")
.roles.cache.get(roles["myrole"]));
console.log("Role Added2");
break;
}
}
}
}

Answer 1

You are not receiving a GuildMember class instance from the raw event. It's a simple json object, it has nothing to do with discordjs. Here is something working:
bot.on("raw", async event => {
const eventName = event.t;
if(eventName == "MESSAGE_REACTION_ADD"){
var roles = JSON.parse(fs.readFileSync("roles.json"));
var info = JSON.parse(fs.readFileSync("info.json"))
if(event.d.message_id == info["Class Message"]){//class selection
switch(event.d.emoji.name){
case "🇦":
console.log("Role Added1");
const guild = bot.guilds.cache.get("721695624613068830");
const memberID = event.d.user_id;
const member = await guild.members.fetch(memberID);
member.roles.add(roles["myrole"]);
console.log("Role Added2");
break;
}
}
}
}
You could also use the following to make your event function synchronous:
bot.on("raw", event => {
const eventName = event.t;
if(eventName == "MESSAGE_REACTION_ADD"){
var roles = JSON.parse(fs.readFileSync("roles.json"));
var info = JSON.parse(fs.readFileSync("info.json"))
if(event.d.message_id == info["Class Message"]){//class selection
switch(event.d.emoji.name){
case "🇦":
console.log("Role Added1");
const guild = bot.guilds.cache.get("721695624613068830");
const memberID = event.d.user_id;
guild.members.fetch(memberID).then((member) => {
member.roles.add(roles["myrole"]);
console.log("Role Added2");
});
break;
}
}
}
}