In the first part of this mini-series we requested an for an API key from Tumblr, then we used it to retrieve data and the avatar for a blog. In this concluding part, we’ll retrieve some posts that are a little more complex. Getting posts ... So far our calls have been simple, because there was no json to interate through. But now, because we’re looking for a single post from multiple posts, we need to do a little more to arrive at our data. Our first step is to determine our URL (replace your-api-key with...