Chilkat Online Tools

DescribeChannel Go Example

AWS IoT Analytics

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

    rest := chilkat.NewRest()
    var success bool

    authAws := chilkat.NewAuthAws()
    authAws.SetAccessKey("AWS_ACCESS_KEY")
    authAws.SetSecretKey("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.SetRegion("us-west-2")
    authAws.SetServiceName("iotanalytics")
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws)

    // URL: https://iotanalytics.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("iotanalytics.us-west-2.amazonaws.com",443,true,true)
    if success != true {
        fmt.Println("ConnectFailReason: ", rest.ConnectFailReason())
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        return
    }

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

    sbResponseBody := chilkat.NewStringBuilder()
    success = rest.FullRequestNoBodySb("GET","/channels/{channelName}",sbResponseBody)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        sbResponseBody.DisposeStringBuilder()
        return
    }

    respStatusCode := rest.ResponseStatusCode()
    fmt.Println("response status code = ", respStatusCode)
    if respStatusCode != 200 {
        fmt.Println("Response Header:")
        fmt.Println(rest.ResponseHeader())
        fmt.Println("Response Body:")
        fmt.Println(*sbResponseBody.GetAsString())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        sbResponseBody.DisposeStringBuilder()
        return
    }

    jResp := chilkat.NewJsonObject()
    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

    Arn := jResp.StringOf("channel.arn")
    CreationTime := jResp.IntOf("channel.creationTime")
    LastMessageArrivalTime := jResp.IntOf("channel.lastMessageArrivalTime")
    LastUpdateTime := jResp.IntOf("channel.lastUpdateTime")
    Name := jResp.StringOf("channel.name")
    NumberOfDays := jResp.IntOf("channel.retentionPeriod.numberOfDays")
    Unlimited := jResp.IntOf("channel.retentionPeriod.unlimited")
    Status := jResp.StringOf("channel.status")
    Bucket := jResp.StringOf("channel.storage.customerManagedS3.bucket")
    KeyPrefix := jResp.StringOf("channel.storage.customerManagedS3.keyPrefix")
    RoleArn := jResp.StringOf("channel.storage.customerManagedS3.roleArn")
    EstimatedOn := jResp.IntOf("statistics.size.estimatedOn")
    EstimatedSizeInBytes := jResp.IntOf("statistics.size.estimatedSizeInBytes")

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

    // {
    //   "channel": {
    //     "arn": "string",
    //     "creationTime": number,
    //     "lastMessageArrivalTime": number,
    //     "lastUpdateTime": number,
    //     "name": "string",
    //     "retentionPeriod": {
    //       "numberOfDays": number,
    //       "unlimited": boolean
    //     },
    //     "status": "string",
    //     "storage": {
    //       "customerManagedS3": {
    //         "bucket": "string",
    //         "keyPrefix": "string",
    //         "roleArn": "string"
    //       },
    //       "serviceManagedS3": {}
    //     }
    //   },
    //   "statistics": {
    //     "size": {
    //       "estimatedOn": number,
    //       "estimatedSizeInBytes": number
    //     }
    //   }
    // }

    rest.DisposeRest()
    authAws.DisposeAuthAws()
    sbResponseBody.DisposeStringBuilder()
    jResp.DisposeJsonObject()