writeResultToStore cannot create error when using graphql-tag webpack loader

[jacobk]

Intended outcome:

Errors thrown in writeResultToStore should be propagated with relevant information added

Actual outcome:

Cannot ready property 'body' of undefined error is thrown instead

How to reproduce the issue:

Trigger writeResultToStore error when using graphql-tag webpack loaded queries.

Root cause:

Actual error thrown:

[helfer]

Hi @jacobk can you send a PR to fix this? I think all you'd have to do is make sure we don't access an undefined field when putting together the error message.

[jacobk]

@helfer the issue is fixed by apollographql/graphql-tag#65
I tried with [email protected] and it works like expected.

What's the formal constraints on what the query documents passed to apollo-client should look like?

I'll be happy to open a PR to simply not concat the source when not present if you think it makes sense.

[helfer]

Hi @jacobk thanks for helping with this! We fixed it in #1738 🙂