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Cache merge is producing extra network call

See original GitHub issue

Intended outcome:

Given two components, Component A and Component B that run the same query, with Component B requesting a little more from the graph.

When defining a custom merge function and using network-only on both components useQuery calls.

There should only be 2 network requests made. 1 for Component A and 1 for B.

Screenshot 2020-09-17 at 14 46 45

Actual outcome: The request for Component A is made again after component B finishes.

How to reproduce the issue: Using apollo client v3.2.0 https://codesandbox.io/s/awesome-gagarin-4rdyp?file=/src/App.js

Not happening using apollo client v2 https://codesandbox.io/s/nice-goodall-odfcy?file=/src/App.js

Versions @apollo/client @3.2.0

Issue Analytics

State:
Created 3 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

2reactions

dskelton-r7commented, Sep 18, 2020

@benjamn I also just noticed this issue that seems similar in nature https://github.com/apollographql/apollo-client/issues/6307 So I downgraded to @apollo/client@3.0.0-beta.45 and its not longer happening. Here is a reproduction of that.

Only 2 requests are being made here https://codesandbox.io/s/infallible-gagarin-u32cz?file=/src/App.js

0reactions

hwillsoncommented, May 11, 2021

Let us know if this is still a concern with @apollo/client@latest - thanks!