React-apollo: Right way to handle ApolloErrors

[EugeneDraitsev]

Hi, I have one pretty simple, but important question about error handling in react-apollo.

My problem is: I execute my query in GraphiQL and get an error in response, but also I have some data, that can be queried without error.

So I want to show to user this successfully queried data and show an error in section with error data, but in Apollo-connected component I can get only errors block, without successfully queried data

You can reproduced it like this:

{
  empireHero: hero(episode: 'works fine with this argument') {
    name
  }
  jediHero: hero(episode: 'failed with this argument') {
    name
  }
}

All you query will be 'invalid', instead of getting error and data sections, you will get only error section.
Probably I trying to make something wrong? Can you try help me with this problem?

Version

• apollo-client@ 2.0.1
• react-apollo@ 2.0.0

[peggyrayzis]

Hi @EugeneDraitsev! react-apollo's default policy is to treat any GraphQL errors as runtime errors and to discard the data. To customize this policy, learn more here.

[ghost]

Hi @peggyrayzis, thanks for quick response. I tried to set my options like

{
    variables: { appLang, tenant, manufacturers },
    errorPolicy: 'all', // Also tried all other values
}

But I still can't see any data, when query has errors (and doublechecked that I get data in GraphiQL)

When I get error in my callQueue and still can't see successfully fetched contentInfo data:

When I don't have any errors:

Probably I still missed something, or I should override errorPolicy by another way?

[ghost]

Any updates about it?

[noeljackson]

I can add some more information to this. data.error is returned undefined when using errorPolicy: 'all' Only after removing errorPolicy at all was I able to get errors passing through.

[ghost]

@noeljackson, the problem is not that data.error is undefined - I don't get data section when i use errorPolicy: all. It works absolutely the same as any other errorPolicy value. Seems like it's even not affected my query

If I executed the same query with GraphiQL I have error and data sections, but in Apollo I can't see data section

[n0ne]

@noeljackson I have the same... very strange...

[VetoS88]

I have an identical problem. Did anyone get to know how to fetch errors and data from the responce?

[bradwoods]

I'm having the same issue

[stantoncbradley]

may be related to this bug https://github.com/apollographql/react-apollo/issues/1389

[norbertkeri]

I'm running into this as well.

[hwillson]

For full error handling details, please see the Error handling section of the docs. If anything isn't clear in the docs (or isn't working), please let us know in a new issue. Thanks!