ICRC-1 Token Logo (icrc1:logo)

Developers
1

Hello!

I’m trying to locally deploy an ICRC-1 token to see if I can add a token logo to the token’s metadata.

Here’s what I’ve done:

  1. Export

export TOKEN_LOGO=“data:image/png;base64,…”

  1. Deploy

metadata = vec { record { label = “icrc1:logo”; value = { Text = "${TOKEN_LOGO}" } } };

1000038437
10000384371819×647 27.7 KB

Unfortunately, it’s not working, and I’m getting the following error message:

1000038436
10000384361073×264 9.22 KB

Can anyone tell me what I’m doing wrong?

See also here: ICRC-1/standards/ICRC-1/README.md at main · dfinity/ICRC-1 · GitHub

2 Likes
2

… value = { Text: …

Should probably be:

… value = variant { Text: …

2 Likes
3

here is an example that worked for me

vec {
 record {
      \"icrc1:logo\";
      variant {
        Text = \"data:image/svg+xml;base64,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\"
      };
    };
},

Just dont forget the back slashes, otherwise you will face these errors

  ┌─ Candid argument:8:12
  │
8 │       icrc1:logo;
  │            ^ Unexpected token
  │
  = Expects "="

10 │         Text = data:image/svg+xml
   │                ^^^^ Unexpected token
2 Likes
4

It’s working now. Many thanks, I was quite desperate before :slight_smile:

1 Like