Add reaction of custom emoji to a message

问题

What can I tweak in my code that will allow me to use custom emojis to react to a message?

I have tried this:

 let suggestions = message.guild.channels.find("name", "suggestions");
  if (message.channel === suggestions) {
    message.channel.send().then(newMessage => {
       newMessage.react('<:information :412438127148531723>')
   })
  }

But I receive the error:

emoji_id: Value "412438127148531723>" is not snowflake.

回答1:

EDIT: I didn't notice that you were trying to send an empty message via .send(), doing this will throw an error. Check @Blundering Philosopher's answer.

As the error states emoji_id: Value "412438127148531723>" is not snowflake., that is indicated that you tried to pass something through the .react() that wasn't a snowflake which you have:

 newMessage('<:information :412438127148531723>') //here

As the docs state the Emoji's id is a type of snowflake.

So, you need to pass the Emoji's id through the .react();, so simply replace this line: newMessage.react('<:information :412438127148531723>'), with this: newMessage.react('412438127148531723')

So your code should look like this as a result:

 let suggestions = message.guild.channels.find("name", "suggestions");
  if (message.channel === suggestions) {
    message.channel.send('your message').then(newMessage => {
       newMessage.react('412438127148531723')
   })
  }

Also, keep in mind that this will only work if the bot itself has access to the emoji, i.e - shares a server that has these emojis; the same way that Discord Nitro works.

回答2:

First, you cannot use .send() without any string or StringResolvable in the parenthesis. Try sending a basic string like this:

message.channel.send('Test message!').then(...)

Second, as @newbie mentioned, you shouldn't put '<:information... :>' around the emoji id, just do this:

// enter your emoji id inside the quotes
newMessage.react('...');

Finally, you should add .catch statements to any Discord function that returns a promise (like .send or .react) like this:

message.channel.send(...).then(...)
    .catch(console.error);

// and later in your code...
newMessage.react(...)
    .catch(console.error);

So to put all of your code together, do this:

let suggestions = message.guild.channels.find("name", "suggestions");
if (message.channel === suggestions) {
    // (send some text to channel)
    message.channel.send('Test message!').then(newMessage => {
        // (add your emoji id inside quotes -> probably '412438127148531723'
        newMessage.react('...')
        // (catch errors)
        .catch(console.error);
    })
    // (catch errors)
    .catch(console.error);
}

回答3:

Since this is the only response when you search this problem on google i'll answer it even if its 1 year old.

emoji_id: Value "412438127148531723>" is not snowflake.

Just remove the > in the end so it is

newMessage.react('<:information :412438127148531723')

Worked for me. Hope it helps if someone is googling the same problem

来源：https://stackoverflow.com/questions/48759006/add-reaction-of-custom-emoji-to-a-message

标签

node.js

discord.js