Facebook API on Lin's Bloghttps://coder.tw/en/tags/facebook-api/Recent content in Facebook API on Lin's BlogHugoen-USFri, 02 Dec 2016 12:18:56 +0000Facebook Graph API: How to Fix Missing Email Field for Some Usershttps://coder.tw/en/posts/facebook-graph-api-missing-email-fix/Fri, 02 Dec 2016 12:18:56 +0000https://coder.tw/en/posts/facebook-graph-api-missing-email-fix/<p>I recently ran into a rather interesting little problem. A contest voting system we built had occasional users who couldn&rsquo;t vote. The system was built with Laravel. Users could log in with Facebook to vote for a designated entry, one vote per day. We only collected the most basic Email and Name data, for the prize draw. Everything was fine during testing, but after launch, a few users complained that after voting they saw the error message &ldquo;whoops looks like something went wrong,&rdquo; while most users could vote normally.</p>