Chilkat Online Tools

DetectEntities C# Example

Amazon Comprehend

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Rest rest = new Chilkat.Rest();
bool success;

Chilkat.AuthAws authAws = new Chilkat.AuthAws();
authAws.AccessKey = "AWS_ACCESS_KEY";
authAws.SecretKey = "AWS_SECRET_KEY";

// Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
authAws.Region = "us-west-2";
authAws.ServiceName = "comprehend";
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws);

// URL: https://comprehend.us-west-2.amazonaws.com/
// Use the same region as specified above.
success = rest.Connect("comprehend.us-west-2.amazonaws.com",443,true,true);
if (success != true) {
    Debug.WriteLine("ConnectFailReason: " + Convert.ToString(rest.ConnectFailReason));
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// The following code creates the JSON request body.
// The JSON created by this code is shown below.

// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("EndpointArn","string");
json.UpdateString("LanguageCode","string");
json.UpdateString("Text","string");

// The JSON request body created by the above code:

// {
//   "EndpointArn": "string",
//   "LanguageCode": "string",
//   "Text": "string"
// }

rest.AddHeader("Content-Type","application/x-amz-json-1.1");
rest.AddHeader("X-Amz-Target","Comprehend_20171127.DetectEntities");

Chilkat.StringBuilder sbRequestBody = new Chilkat.StringBuilder();
json.EmitSb(sbRequestBody);
Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

int respStatusCode = rest.ResponseStatusCode;
Debug.WriteLine("response status code = " + Convert.ToString(respStatusCode));
if (respStatusCode != 200) {
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(rest.ResponseHeader);
    Debug.WriteLine("Response Body:");
    Debug.WriteLine(sbResponseBody.GetAsString());
    return;
}

Chilkat.JsonObject jResp = new Chilkat.JsonObject();
jResp.LoadSb(sbResponseBody);

// The following code parses the JSON response.
// A sample JSON response is shown below the sample code.

// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

int BeginOffset;
int EndOffset;
int Score;
string Text;
string v_Type;

int i = 0;
int count_i = jResp.SizeOfArray("Entities");
while (i < count_i) {
    jResp.I = i;
    BeginOffset = jResp.IntOf("Entities[i].BeginOffset");
    EndOffset = jResp.IntOf("Entities[i].EndOffset");
    Score = jResp.IntOf("Entities[i].Score");
    Text = jResp.StringOf("Entities[i].Text");
    v_Type = jResp.StringOf("Entities[i].Type");
    i = i + 1;
}

// A sample JSON response body parsed by the above code:

// {
//   "Entities": [
//     {
//       "BeginOffset": number,
//       "EndOffset": number,
//       "Score": number,
//       "Text": "string",
//       "Type": "string"
//     }
//   ]
// }