Unknown error while trying to parse custom snippets

[Tagvi]

I added this to my init.vim on line 45

let g:user_emmet_settings = webapi#json#decode(join(readfile(expand('~/.snippets.json')), "\n"))

and inside the .snippets.json is

 {
 "script": "<script type='module' src='${0}'> </script>"
 }

And I assume this is enough config for it to work. Next up I get this error message:
Error detected while processing /home/tagvi/.config/nvim/init.vim: line 45
(Nothing else)

I have the web API installed.
Arch Linux
Kernel: 5.10.87-1-lts
Neovim 0.6.0-1

Ways to reproduce:
Edit any file using nvim

[Tagvi]

Looks like I didn't have web-api properly installed

[mattn]

FYI, vim have json_decode() 2022年1月7日(金) 21:50 Otar Natsvaladze ***@***.***>:

…

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