Syntax Error: Unexpected } in the middleware.js when pressing the SCHEMA tab in the GrapgQL IDE

[yansklyarenko]

We are using version 10.5.2. Yes, I understand it's an old one and is not actively maintained. However, if you can give me a hint at least where to dig, I would really appreciate it.

For one of our schemas, as soon as I click the SCHEMA tab, the entire IDE page goes blank and there are the following errors in the JS console:

middleware.js:82 SyntaxError: Syntax Error: Unexpected } (108:1) (at middleware.js:112:449001)
  106 | 
  107 |   
> 108 | }
      | ^
  109 | 
  110 | 
  111 |   
    at t.start.line (middleware.js:112:449001)
    at Object.parse (middleware.js:112:449078)
    at Object.parse (middleware.js:112:122273)
    at Hs (middleware.js:112:163118)
    at Ws (middleware.js:112:165959)
    at formatWithCursor (middleware.js:112:166135)
    at middleware.js:112:398085
    at Object.format (middleware.js:112:398168)
    at t.prettify (middleware.js:27:30166)
    at Object.l [as getSDL] (middleware.js:51:1995)

and

TypeError: Cannot read properties of undefined (reading 'off')
    at r.componentWillUnmount (middleware.js:117:311815)
    at middleware.js:82:84508
    at as (middleware.js:82:84549)
    at ls (middleware.js:82:86384)
    at du (middleware.js:82:99856)
    at t.unstable_runWithPriority (middleware.js:90:3844)
    at Vi (middleware.js:82:45022)
    at fu (middleware.js:82:97716)
    at Zs (middleware.js:82:93870)
    at middleware.js:82:45313

It must be something related to schema itself since it happens for only one of those, but I can't understand what exactly. The DOCS tab opens just fine. I can also run queries - all working great. It's only the SCHEMA tab that spoils the party.

Thanks in advance!

[PascalSenn]

@yansklyarenko does the same happen when you use the standalone app or https://eat.bananacakepop.com ?

[yansklyarenko]

Pardon my ignorance, but what is the standalone app? Any docs describing how to spin it up? I'm not sure I can use https://eat.bananacakepop.com/ because we don't expose the schema via endpoint...

[PascalSenn]

You can download the app here: https://chillicream.com/docs/bananacakepop/install

[yansklyarenko]

It turned out that IDE tab didn't like the fact that some description properties of the graph types emitted were empty. I didn't dig deep enough to understand the root cause, to be honest. I've just made sure all description properties are filled in - that's acceptable for me at this point.

Sorry for the false alarm - it's definitely not the problem of the IDE, as far as I see it.