get-article-desc-github-api.cs

private static async Task<PostMetaTagImage> GetBlogPostCardDescription(ILogger log)
{
    PostMetaTagImage cardDescription = new PostMetaTagImage();

    try
    {
        string content = await MakeGitHubAPICall("https://api.github.com/repos/<website-repo>/commits");
        List<CommitsData> commits = JsonConvert.DeserializeObject<List<CommitsData>>(content);

        CommitsData latestCommit = commits.OrderByDescending(x => x.commit.author.date).FirstOrDefault();

        //Get Files in latestCommit
        content = await MakeGitHubAPICall($"https://api.github.com/repos/<website-repo>/commits/{latestCommit.sha}");
        CommitResponse commitDetail = JsonConvert.DeserializeObject<CommitResponse>(content);

        //Iterate files to find aded file
        commitDetail.files.ForEach(f =>
        {
            //If this file is in the contents/static/api/post/ directory and has been added, its a new blog post,
            //so we have to generate a new card image

            if(f.status == "added" && f.contents_url.Contains("contents/static/api/post/"))
            {
                //Load the blog post json file that was added
                content = MakeGitHubAPICall(f.contents_url).Result;
                ContentResponse postDetails = JsonConvert.DeserializeObject<ContentResponse>(content);

                //Get post details from Base64 encoded string
                byte[] data = Convert.FromBase64String(postDetails.content);
                string decodedString = Encoding.UTF8.GetString(data);

                //Deserialize string from Base64
                BlogPost p = JsonConvert.DeserializeObject<BlogPost>(decodedString);

                //Set the card description
                cardDescription.PostTitle = p.results[0].id;
                cardDescription.PostMetaTagImageDescription = p.results[0].meta.description;
            }
        });
    }
    catch(Exception ex)
    {
        log.LogError($"An error occured getting post description for Card from GitHub API: " + ex.Message);
    }

    return cardDescription;
}