Visual FoxPro

WhatsApp - Send a Text Message

Demonstrates how to use the messages endpoint to send text messages to your customers. Visual FoxPro

LOCAL lnSuccess
LOCAL loHttp
LOCAL loJson
LOCAL loResp
LOCAL loSbResponseBody
LOCAL loJResp
LOCAL lnRespStatusCode
LOCAL lcId
LOCAL i
LOCAL lnCount_i

lnSuccess = 0

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

loHttp = CreateObject('Chilkat.Http')

* Implements the following CURL command:

* curl -X POST https://example.com/v1/messages \
*   -H "Authorization: Bearer your-auth-token" \
*   -d '
* {
*     "preview_url": false,
*     "recipient_type": "individual",
*     "to": "whatsapp-id-or-group-id",
*     "type": "text",
*     "text": {
*         "body": "your-text-message-content"
*     }
* }'

* 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.

* {
*   "preview_url": false,
*   "recipient_type": "individual",
*   "to": "whatsapp-id-or-group-id",
*   "type": "text",
*   "text": {
*     "body": "your-text-message-content"
*   }
* }

loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateBool("preview_url",0)
loJson.UpdateString("recipient_type","individual")
loJson.UpdateString("to","whatsapp-id-or-group-id")
loJson.UpdateString("type","text")
loJson.UpdateString("text.body","your-text-message-content")

* Adds the "Authorization: Bearer your-auth-token" header.
loHttp.AuthToken = "your-auth-token"

loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpJson("POST","https://example.com/v1/messages",loJson,"application/json",loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loJson
    RELEASE loResp
    CANCEL
ENDIF

loSbResponseBody = CreateObject('Chilkat.StringBuilder')
loResp.GetBodySb(loSbResponseBody)
loJResp = CreateObject('Chilkat.JsonObject')
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = 0

? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + STR(lnRespStatusCode)
IF (lnRespStatusCode >= 400) THEN
    ? "Response Header:"
    ? loResp.Header
    ? "Failed."
    RELEASE loHttp
    RELEASE loJson
    RELEASE loResp
    RELEASE loSbResponseBody
    RELEASE loJResp
    CANCEL
ENDIF

* 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

i = 0
lnCount_i = loJResp.SizeOfArray("messages")
DO WHILE i < lnCount_i
    loJResp.I = i
    lcId = loJResp.StringOf("messages[i].id")
    i = i + 1
ENDDO

RELEASE loHttp
RELEASE loJson
RELEASE loResp
RELEASE loSbResponseBody
RELEASE loJResp