Chilkat Online Tools

ListChannels Swift Example

AWS IoT Analytics

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 = "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", port: 443, tls: true, autoReconnect: true)
    if success != true {
        print("ConnectFailReason: \(rest.ConnectFailReason.intValue)")
        print("\(rest.LastErrorText)")
        return
    }

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

    let sbResponseBody = CkoStringBuilder()
    success = rest.FullRequestNoBodySb("GET", uriPath: "/channels", sb: 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 channelName: String?
    var Bucket: String?
    var KeyPrefix: String?
    var RoleArn: String?
    var creationTime: Int
    var lastMessageArrivalTime: Int
    var lastUpdateTime: Int
    var status: String?

    var nextToken: String? = jResp.StringOf("nextToken")
    var i: Int = 0
    var count_i: Int = jResp.SizeOfArray("channelSummaries").intValue
    while i < count_i {
        jResp.I = i
        channelName = jResp.StringOf("channelSummaries[i].channelName")
        Bucket = jResp.StringOf("channelSummaries[i].channelStorage.customerManagedS3.bucket")
        KeyPrefix = jResp.StringOf("channelSummaries[i].channelStorage.customerManagedS3.keyPrefix")
        RoleArn = jResp.StringOf("channelSummaries[i].channelStorage.customerManagedS3.roleArn")
        creationTime = jResp.IntOf("channelSummaries[i].creationTime").intValue
        lastMessageArrivalTime = jResp.IntOf("channelSummaries[i].lastMessageArrivalTime").intValue
        lastUpdateTime = jResp.IntOf("channelSummaries[i].lastUpdateTime").intValue
        status = jResp.StringOf("channelSummaries[i].status")
        i = i + 1
    }

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

    // {
    //   "channelSummaries": [
    //     {
    //       "channelName": "string",
    //       "channelStorage": {
    //         "customerManagedS3": {
    //           "bucket": "string",
    //           "keyPrefix": "string",
    //           "roleArn": "string"
    //         },
    //         "serviceManagedS3": {}
    //       },
    //       "creationTime": number,
    //       "lastMessageArrivalTime": number,
    //       "lastUpdateTime": number,
    //       "status": "string"
    //     }
    //   ],
    //   "nextToken": "string"
    // }

}