private async Task <RecognizedForm> AzureReceiptRecognition(String receipt)
{
var stream = File.Open(receipt, FileMode.Open);
var endpoint = Config.AzureEndpoint;
var apiKey = Config.AzureKey;
var client = new FormRecognizerClient(new Uri(endpoint), new AzureKeyCredential(apiKey));
var operation = await client.StartRecognizeReceiptsAsync(stream);
await operation.WaitForCompletionAsync();
if (!operation.HasValue)
{
return(null);
}
var form = operation.Value.Single();
return(form);
}
public async Task RecognizeReceiptsFromFile()
{
string endpoint = TestEnvironment.Endpoint;
string apiKey = TestEnvironment.ApiKey;
FormRecognizerClient client = new FormRecognizerClient(new Uri(endpoint), new AzureKeyCredential(apiKey));
#region Snippet:FormRecognizerSampleRecognizeReceiptFileStream
#if SNIPPET
string receiptPath = "<receiptPath>";
#else
string receiptPath = FormRecognizerTestEnvironment.CreatePath("contoso-receipt.jpg");
#endif
using var stream = new FileStream(receiptPath, FileMode.Open);
var options = new RecognizeReceiptsOptions()
{
Locale = "en-US"
};
RecognizeReceiptsOperation operation = await client.StartRecognizeReceiptsAsync(stream, options);
Response <RecognizedFormCollection> operationResponse = await operation.WaitForCompletionAsync();
RecognizedFormCollection receipts = operationResponse.Value;
// To see the list of the supported fields returned by service and its corresponding types, consult:
// https://aka.ms/formrecognizer/receiptfields
foreach (RecognizedForm receipt in receipts)
{
if (receipt.Fields.TryGetValue("MerchantName", out FormField merchantNameField))
{
if (merchantNameField.Value.ValueType == FieldValueType.String)
{
string merchantName = merchantNameField.Value.AsString();
Console.WriteLine($"Merchant Name: '{merchantName}', with confidence {merchantNameField.Confidence}");
}
}
if (receipt.Fields.TryGetValue("TransactionDate", out FormField transactionDateField))
{
if (transactionDateField.Value.ValueType == FieldValueType.Date)
{
DateTime transactionDate = transactionDateField.Value.AsDate();
Console.WriteLine($"Transaction Date: '{transactionDate}', with confidence {transactionDateField.Confidence}");
}
}
if (receipt.Fields.TryGetValue("Items", out FormField itemsField))
{
if (itemsField.Value.ValueType == FieldValueType.List)
{
foreach (FormField itemField in itemsField.Value.AsList())
{
Console.WriteLine("Item:");
if (itemField.Value.ValueType == FieldValueType.Dictionary)
{
IReadOnlyDictionary <string, FormField> itemFields = itemField.Value.AsDictionary();
if (itemFields.TryGetValue("Name", out FormField itemNameField))
{
if (itemNameField.Value.ValueType == FieldValueType.String)
{
string itemName = itemNameField.Value.AsString();
Console.WriteLine($" Name: '{itemName}', with confidence {itemNameField.Confidence}");
}
}
if (itemFields.TryGetValue("TotalPrice", out FormField itemTotalPriceField))
{
if (itemTotalPriceField.Value.ValueType == FieldValueType.Float)
{
float itemTotalPrice = itemTotalPriceField.Value.AsFloat();
Console.WriteLine($" Total Price: '{itemTotalPrice}', with confidence {itemTotalPriceField.Confidence}");
}
}
}
}
}
}
if (receipt.Fields.TryGetValue("Total", out FormField totalField))
{
if (totalField.Value.ValueType == FieldValueType.Float)
{
float total = totalField.Value.AsFloat();
Console.WriteLine($"Total: '{total}', with confidence '{totalField.Confidence}'");
}
}
}
#endregion
}
public async Task RecognizeReceiptsFromFile()
{
string endpoint = TestEnvironment.Endpoint;
string apiKey = TestEnvironment.ApiKey;
#region Snippet:FormRecognizerSampleCreateClient
FormRecognizerClient client = new FormRecognizerClient(new Uri(endpoint), new AzureKeyCredential(apiKey));
#endregion
string receiptPath = FormRecognizerTestEnvironment.CreatePath("contoso-receipt.jpg");
#region Snippet:FormRecognizerSampleRecognizeReceiptFileStream
using (FileStream stream = new FileStream(receiptPath, FileMode.Open))
{
RecognizedFormCollection receipts = await client.StartRecognizeReceiptsAsync(stream).WaitForCompletionAsync();
// To see the list of the supported fields returned by service and its corresponding types, consult:
// https://westus2.dev.cognitive.microsoft.com/docs/services/form-recognizer-api-v2-preview/operations/GetAnalyzeReceiptResult
foreach (RecognizedForm receipt in receipts)
{
FormField merchantNameField;
if (receipt.Fields.TryGetValue("MerchantName", out merchantNameField))
{
if (merchantNameField.Value.Type == FieldValueType.String)
{
string merchantName = merchantNameField.Value.AsString();
Console.WriteLine($"Merchant Name: '{merchantName}', with confidence {merchantNameField.Confidence}");
}
}
FormField transactionDateField;
if (receipt.Fields.TryGetValue("TransactionDate", out transactionDateField))
{
if (transactionDateField.Value.Type == FieldValueType.Date)
{
DateTime transactionDate = transactionDateField.Value.AsDate();
Console.WriteLine($"Transaction Date: '{transactionDate}', with confidence {transactionDateField.Confidence}");
}
}
FormField itemsField;
if (receipt.Fields.TryGetValue("Items", out itemsField))
{
if (itemsField.Value.Type == FieldValueType.List)
{
foreach (FormField itemField in itemsField.Value.AsList())
{
Console.WriteLine("Item:");
if (itemField.Value.Type == FieldValueType.Dictionary)
{
IReadOnlyDictionary <string, FormField> itemFields = itemField.Value.AsDictionary();
FormField itemNameField;
if (itemFields.TryGetValue("Name", out itemNameField))
{
if (itemNameField.Value.Type == FieldValueType.String)
{
string itemName = itemNameField.Value.AsString();
Console.WriteLine($" Name: '{itemName}', with confidence {itemNameField.Confidence}");
}
}
FormField itemTotalPriceField;
if (itemFields.TryGetValue("TotalPrice", out itemTotalPriceField))
{
if (itemTotalPriceField.Value.Type == FieldValueType.Float)
{
float itemTotalPrice = itemTotalPriceField.Value.AsFloat();
Console.WriteLine($" Total Price: '{itemTotalPrice}', with confidence {itemTotalPriceField.Confidence}");
}
}
}
}
}
}
FormField totalField;
if (receipt.Fields.TryGetValue("Total", out totalField))
{
if (totalField.Value.Type == FieldValueType.Float)
{
float total = totalField.Value.AsFloat();
Console.WriteLine($"Total: '{total}', with confidence '{totalField.Confidence}'");
}
}
}
}
#endregion
}
public async Task <RecognizedFormCollection> AnalyzeReceiptFromStream(Stream receipt) => await client.StartRecognizeReceiptsAsync(receipt).WaitForCompletionAsync();
public async Task <RecognizedFormCollection> AnalyzeReceiptFromStream(Stream receipt)
{
RecognizedFormCollection collection = await _frClient.StartRecognizeReceiptsAsync(receipt).WaitForCompletionAsync();
return(collection);
}