API: preview.info about abstract-sdk HOT 6 CLOSED

@igorsheg-wix you should also be able to pass sha: "latest" in the descriptor:

previews.raw({...layerDescriptor, sha: "latest"})

https://sdk.goabstract.com/docs/reference/#retrieve-a-preview

@tommoor this is really only documented in a code comment in the docs. I want to add a "Retrieve the latest preview" section to the docs but it would also be nice to have place to generally surface the concept of "latest" across all objects

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Hey Igor, short answer is – use previews.raw to get the data and save it somewhere. The previews service requires authentication with a token which would have to be saved with the URL.

We're looking into how this can be improved (perhaps with a previews specific short-lived token) as we realize it's not as developer friendly as it should be.

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@tommoor Hey Tom, can you tell me why some preview.raw do return an array buffer, and some request return Error: Received status "404", expected 2XX [1] at AbstractAPI.fetch (/Users/igors/Development/ux-feed/node_modules/abstract-sdk/lib/AbstractAPI/index.js:294:13) [1] at process._tickCallback (internal/process/next_tick.js:68:7) [1] undefined

Thanks a lot.

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If you're receiving a 404 it means that the preview does not exist on the server.

There isn't a preview on the server for every commit, for efficiency we only store previews on commit where a layer has changed… so you may need to query the layer.info, and then use layer.lastChangedAtSha to find the last commit where the layer was altered – there should reliably be a preview for these commits.

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you should also be able to pass sha: "latest" in the descriptor

Ah, of course 🙈 – should have mentioned that too.

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@tommoor @amccloud Thanks guys ;)

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