Swift

WhatsApp - Send a Linked Media Message

Demonstrates how to send a media message where the media content is a link to an external URL. This example demonstrates sending an image (JPG) media message. Swift

func chilkatTest() {
    var success: Bool = false

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

    let http = CkoHttp()!

    // Implements the following CURL command:

    // curl -X POST https://example.com/v1/messages \
    //   -H "Authorization: Bearer your-auth-token" \
    //   -d '
    // {
    //     "recipient_type": "individual-or-group",
    //     "to": "whatsapp-id-or-group-id",
    //     "type": "image",
    //     "image": {
    //       "link": "http(s)://the-url",
    //       "provider": {
    //         "name" : "provider-name"
    //       },
    //     "caption": "your-image-caption"
    //   }
    // }'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

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

    // The following JSON is sent in the request body.

    // {
    //   "recipient_type": "individual-or-group",
    //   "to": "whatsapp-id-or-group-id",
    //   "type": "image",
    //   "image": {
    //     "link": "http(s)://the-url",
    //     "provider": {
    //       "name": "provider-name"
    //     },
    //     "caption": "your-image-caption"
    //   }
    // }

    let json = CkoJsonObject()!
    json.updateString(jsonPath: "recipient_type", value: "individual-or-group")
    json.updateString(jsonPath: "to", value: "whatsapp-id-or-group-id")
    json.updateString(jsonPath: "type", value: "image")
    json.updateString(jsonPath: "image.link", value: "http(s)://the-url")
    json.updateString(jsonPath: "image.provider.name", value: "provider-name")
    json.updateString(jsonPath: "image.caption", value: "your-image-caption")

    // Adds the "Authorization: Bearer your-auth-token" header.
    http.authToken = "your-auth-token"

    let resp = CkoHttpResponse()!
    success = http.httpJson(verb: "POST", url: "https://example.com/v1/messages", json: json, contentType: "application/json", response: resp)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    let sbResponseBody = CkoStringBuilder()!
    resp.getBodySb(sb: sbResponseBody)
    let jResp = CkoJsonObject()!
    jResp.loadSb(sb: sbResponseBody)
    jResp.emitCompact = false

    print("Response Body:")
    print("\(jResp.emit()!)")

    var respStatusCode: Int = resp.statusCode.intValue
    print("Response Status Code = \(respStatusCode)")
    if respStatusCode >= 400 {
        print("Response Header:")
        print("\(resp.header!)")
        print("Failed.")
        return
    }

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "messages": [
    //     {
    //       "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
    //     }
    //   ]
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    var id: String?

    var i: Int = 0
    var count_i: Int = jResp.size(ofArray: "messages").intValue
    while i < count_i {
        jResp.i = i
        id = jResp.string(of: "messages[i].id")
        i = i + 1
    }


}