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nextcloud / integration_mattermost

Mattermost integration in Nextcloud
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Client error: POST 404 Not Found #38

Open stepcellwolf opened 9 months ago

stepcellwolf commented 9 months ago

Hi,

I'm having problem running the app within: Nextcloud 28.0.2 Mattermost Version: 9.4.2 Database Schema Version: 117 Build Number: 7586560796

No matter which option I select, Upload file, Public links or internal links still I get the following error:

Failed to send internal links to Mattermost: "Client error:POST https:\/\/chat.domain.ltd\/mattermost\/\/api\/v4\/postsresulted in a404 Not Foundresponse:\n{\"id\":\"api.context.404.app_error\",\"message\":\"Sorry, we could not find the page.\",\"detailed_error\":\"There doesn't appear (truncated...)\n"

Any work around or solution?

From my understanding, the api URL is not correct.

jejbq commented 3 months ago

Is your mattermost really installed inside a subfolder /mattermost/ or directly at the base of your chat.domain.ltd/?

Only put "https://chat.domain.ltd" (or "https://chat.domain.ltd/mattermost" if this is the base of your mattermost installation) in "OAuth app instance address" field of Nextcloud and try again.

Don't add any like "/api/v4/posts" or "/oauth/authorize" after your Mattermost URL or it will not work.

I had similar issue when my OAuth app instance address was https://chat.domain.ltd/oauth/authorize, I had 404 trying to access https://chat.domain.ltd/oauth/authorize/oauth/access_token after fixing the OAuth app instance address to only https://chat.domain.ltd the redirection was correct to https://chat.domain.ltd/oauth/access_token

REFERENCES https://developers.mattermost.com/integrate/apps/authentication/oauth2/#oauth-endpoints https://nextcloud.com/blog/introducing-the-nextcloud-and-mattermost-integration/