Possible to know when remote interface initialised about comlink HOT 6 CLOSED

As long as you wait on the iframe’s onload, you are fine (you can build your own ready() or something to make it more semantically meaningful). Here’s a glitch example.

I can’t really bake that mechanism into Comlink as the mechanism differs for Workers, iFrames and what not.

Does that help?

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@surma that does help, but the idea was more of having a generic mechanism that works for all kinds of targets.

Is it not possible that

• when proxy is called, send a load-check message to the target
• when expose is called or when load-check message is received, send a loaded message to the target

Cannot such a mechanism, implement this in a generic way ?

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I don’t think there’s a generic and reliable way to make sure the channel is initialized — exactly because there’s no way to make sure the load-check message doesn’t get lost itself. You have to rely on the underlying channel semantics to make sure it’s ready.

Imma close this for now, but feel free to re-open if you think you have a good way!

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@surma In my case, a child iframe application is waiting to receive an API via getInstance()...the challenge I'm facing is that the react or angular child application in the child iframe has already finished rendering by the time the proxied instance is received. Hence, there is a large delay sending comlink.proxyValue(...) and the only way to guarantee that the proxied value exists prior is have a hook that mounts the iframe content after resolving ---> await api.Comunication.getInstance();

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I can’t quite follow. Neither expose() nor proxyValue() send anything. The just hook up to a message channel.

The process is inherently async, there’s nothing I can do about that. If you need to wait for the other side to be “ready” in some form, then that needs to be build on top of Comlink.

Can you maybe give me an example I can test with?

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I answered my own question. Thanks. Like you mentioned, it needs to be build on top of Comlink.

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