Support `@apollo/client` v4

[hyperse-net]

Add support for @apollo/client v4.

[jaydenseric]

This will be a major change, and drop support for @apollo/client v3.

[hyperse-net]

yes, and any plan for this?

[jaydenseric]

@hyperse-net Yes, I've been pushing up maintenance commits all morning my time today, and am currently working on merging #348 .

Supporting @apollo/client v4 will be the next thing, which I will start on today but probably it will take a few days of work because the API will be completely different. The exported function createUploadLink will be removed in favour of an UploadHttpLink class, and the Apollo client awareness features will be removed so that consumers can compose the Apollo link ClientAwarenessLink if needed, making UploadLink more of a replacement for BaseHttpLink than HttpLink, see:

https://github.com/apollographql/apollo-client/blob/c6ec3eb7a1f81857f2aff0f5a45dbcfa079e1ef4/src/link/http/HttpLink.ts#L56-L59

[hyperse-net]

good news, i just upgrade @apollo/client to V4 and everythings works fine but blocked on file upload if you are ready i can help testing.

[tianyingchun]

I temporarily created a version that supports Apollo V4 to facilitate the current project upgrade

https://github.com/hyperse-io/apollo-upload-client

[jaydenseric]

What's currently in master branch looks pretty good:

https://github.com/jaydenseric/apollo-upload-client/blob/master/changelog.md#next

I'm starting work on the examples repo and testing now.

[nealoke]

That would be great, doing great @jaydenseric 🙏

[bmulholland]

@jaydenseric That changelog looks like exceptional work. I don't usually chime in but the changes here are thorough, high quality, updating to the latest best practices in several areas, are well documented, and more. Thank you!

[jaydenseric]

v19.0.0 has been published, adding support for Apollo Client v4 🚀

Locally I've completely overhauled the example app to ditch Next.js for an absolutely barebones and clear example React app with Apollo Client v4 and apollo-upload-client v19, without fancy styling etc. Now that v19.0.0 is published I can go about pushing up that work hopefully later today.

Not relevant to this issue, but I've also looked into updating the example API. It's a bit tricky because the Apollo Server Koa integration no longer has a maintainer, and critical PRs are not being reviewed/merged:

apollo-server-integrations/apollo-server-integration-koa#236