Upload a photo to Flickr via the dedicated multipart upload endpoint, correctly excluding the photo parameter from the OAuth 1.0a signature
domain: flickr.com · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Complete the Flickr OAuth 1.0a flow to obtain an access token and token secret with 'write' permission
Build the multipart/form-data POST body with the photo file plus optional fields: title, description, tags (space-separated), is_public/is_friend/is_family, safety_level, content_type, and hidden
Compute the OAuth 1.0a signature over api_key, auth_token/oauth_token, and all non-file POST parameters, explicitly excluding the 'photo' field itself from the signature base string
POST the multipart request to https://up.flickr.com/services/upload/ with the signature and OAuth parameters included
Parse the REST-style XML response for <photoid>...</photoid> on success, or check the numeric error code in the error response on failure
Redirect the user to https://www.flickr.com/photos/upload/edit/?ids=1,2,3 (comma-separated uploaded photo IDs) to let them review/edit the new uploads
Known gotchas
Including the 'photo' binary field when computing the OAuth signature produces an invalid signature (error code 96) — it must be omitted from signing even though it is a real POST parameter
Omitting is_public/is_friend/is_family lets Flickr fall back to the user's account default privacy rather than defaulting to fully public, which can surprise integrations expecting explicit control
Error code 9 (duplicate photo/video) is only returned when dedup_check is explicitly enabled on the request; without it, true duplicates are silently uploaded again
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