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insomnia-plugin-genai-image-preview

v0.1.4

Published

A plugin for Insomnia that previews images returned by GenAI endpoints like Stable Diffusion Web UI or Dall-E API.

Downloads

1,045

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

taurittaurit

Keywords

insomniaplugingenaiimage-previewstable-diffusiondall-e

Readme

insomnia-plugin-genai-image-preview

This plugin opens a preview dialog displaying images returned by the GenAI endpoints.

A screenshot of an opened dialog window in Insomnia

Without this plugin, you only see a JSON with Base64-encoded images in the response.

It supports displaying multiple images (one below another, with a scrollbar) for batch requests that return more than one.

Supported endpoints:

Please note: For the OpenAI API, the "response_format": "b64_json" option must be set, because otherwise the authentication to download generated images from the storage is tricky.

Known issues

Image preview in a dialog, and not in a preview pane

The most natural place for image previews in Insomnia would not be a dialog, but the "Preview" pane. However, the current plugin API doesn't allow adding a custom type of preview.

I considered tricking the program and replacing JSON response with an HTML response containing images, but currently it's not possible to replace the Content-Type header of the response (and it would be controversial to modify the response anyway).

Re-opening the preview

Once you close the preview window, you cannot re-open it. I'm not sure if it's possible to re-open with the current Insomnia plugin API. So it's displayed only once, just after the response comes.

Degraded performance when working with large responses

I don't think this is related to the plugin, but an observation worth sharing. When working with Prompt-to-Image APIs, Insomnia's performance degrades quite fast. I think it's because responses contain large JSON content.

I personally reduced the number of response history items stored, and it seemed to have helped a bit, but I haven't performed performance tests.

Contribution

My personal usage of Generative AI Image APIs is limited to Stable Diffusion and Dall-E, and I'm unlikely to spontaneously add support for other endpoints.

If you want to see something else supported, then please:

  • Create a GitHub issue with a feature suggestion (please describe as detailed as you can)
  • Or modify the plugin code and share the solution via a PR.