public void CreateCodeSearchRequest()
{
var link = new CodeSearchLink();
var request = link.CreateRequest();
Assert.Equal(HttpMethod.Get, request.Method);
Assert.Null(request.RequestUri); // URL provided by hypermedia
}
public void CreateCodeSearchRequestWithUriTemplate()
{
var link = new CodeSearchLink()
{
Template = new UriTemplate("http://api.github.com/search{?query,sort,page,per_page}"),
Query = "panic"
};
var request = link.CreateRequest();
Assert.Equal(HttpMethod.Get, request.Method);
Assert.Equal("http://api.github.com/search?query=panic", request.RequestUri.AbsoluteUri); // URL provided by hypermedia
}
private static async Task CodeSearchUsingLink()
{
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders
.UserAgent.Add(new ProductInfoHeaderValue("DarrelsGitClient", "1.0"));
// API Specific type acts as Request Factory
var codeSearchLink = new CodeSearchLink()
{
Template = new UriTemplate("https://api.github.com/search/code?q={query}{&page,per_page,sort_order}"),
Query = ".Result user:darrelmiller"
};
var requestMessage = codeSearchLink.CreateRequest();
var responseMessage = await httpClient.SendAsync(requestMessage);
// ReadAs extension takes advantage of media type defined by API
var githubdoc = await responseMessage.Content.ReadAsGithubDocumentAsync();
// API Specific Link Type knows how to interpret generic media type
var searchResults = CodeSearchLink.InterpretMessageBody(githubdoc);
foreach (var result in searchResults.Items)
{
Console.WriteLine(result.Path);
}
// Harvest strongly typed links from strongly typed searchresults
var fileLinks = searchResults.Items
.Where(i => i.Name.Contains("Slack") && i.CodeFileLink != null)
.Select(i => i.CodeFileLink);
foreach (var fileLink in fileLinks)
{
// Following Links is a way of navigating the API's object graph
var fileResponse = await httpClient.FollowLinkAsync(fileLink);
// Reuse media type parser
var fileDoc = await fileResponse.Content.ReadAsGithubDocumentAsync();
// Use Type Specific Link to interpret results
var codeFile = CodeFileLink.InterpretMessageBody(fileDoc);
Console.WriteLine(codeFile.Content);
}
}