llamaindex.net/samples/GettingStarted/ParseDocuments/README.md

ParseDocuments Sample

This samples shows off the basics you need to get started parsing documents in .NET using the LlamaParse .NET client SDK inside of a console application.

Prerequisites

• .NET 8 SDK
• LlamaCloud API Key
• Visual Studio or Visual Studio Code

Guide

1. Configure your client

   var apiKey = Environment.GetEnvironmentVariable("LLAMACLOUD_API_KEY");
   
   var parseConfig = new Configuration()
   {
       ApiKey = apiKey?? string.Empty
   };
   
   var llamaParseClient = new LlamaParseClient(new HttpClient(), parseConfig);
   

2. Use the client to parse your documents. In this case, we're using an InMemoryFile, which contains the document data byte[] from the paper Attention is all you need. For simplicity and further processing, we've opted to get the results in JSON format.

   var document = new InMemoryFile(documentData, "attention-is-all-you-need.pdf");
   var parsedDocs = llamaParseClient.LoadDataRawAsync(document, ResultType.Json);
   

3. Extract parsed results and post-process. In this case, the code just takes the paginated results and prints them out to the console.

   await foreach (var parsedDoc in parsedDocs)
   {
       var serializerOptions = new JsonSerializerOptions
       {
           PropertyNameCaseInsensitive = true
       };
   
       var result = JsonSerializer.Deserialize<ParseResult>(parsedDoc.Result, serializerOptions);
   
       foreach(var page in result.Pages)
       {
           Console.WriteLine($"Page {page.Page}");
           Console.WriteLine("-------------------");
           Console.WriteLine(page.Text);
           Console.WriteLine("-------------------");
       }
   }
   
   public record ParseResult(PageContent[] Pages);
   public record PageContent(int Page, string Text);