Chilkat Online Tools

DetectEntities Swift Example

Amazon Comprehend

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

    let rest = CkoRest()
    var success: Bool

    let authAws = CkoAuthAws()
    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", port: 443, tls: true, autoReconnect: true)
    if success != true {
        print("ConnectFailReason: \(rest.ConnectFailReason.intValue)")
        print("\(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

    let json = CkoJsonObject()
    json.UpdateString("EndpointArn", value: "string")
    json.UpdateString("LanguageCode", value: "string")
    json.UpdateString("Text", value: "string")

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

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

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

    let sbRequestBody = CkoStringBuilder()
    json.EmitSb(sbRequestBody)
    let sbResponseBody = CkoStringBuilder()
    success = rest.FullRequestSb("POST", uriPath: "/", requestBody: sbRequestBody, responseBody: sbResponseBody)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    var respStatusCode: Int = rest.ResponseStatusCode.intValue
    print("response status code = \(respStatusCode)")
    if respStatusCode != 200 {
        print("Response Header:")
        print("\(rest.ResponseHeader)")
        print("Response Body:")
        print("\(sbResponseBody.GetAsString())")
        return
    }

    let jResp = CkoJsonObject()
    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

    var BeginOffset: Int
    var EndOffset: Int
    var Score: Int
    var Text: String?
    var v_Type: String?

    var i: Int = 0
    var count_i: Int = jResp.SizeOfArray("Entities").intValue
    while i < count_i {
        jResp.I = i
        BeginOffset = jResp.IntOf("Entities[i].BeginOffset").intValue
        EndOffset = jResp.IntOf("Entities[i].EndOffset").intValue
        Score = jResp.IntOf("Entities[i].Score").intValue
        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"
    //     }
    //   ]
    // }

}