(Visual FoxPro) WhatsApp - First Login

Log in the very first time to get your authentication token. The new login/password is passed in the JSON body of the request.

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://developers.facebook.com/docs/whatsapp/api/users/login

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loHttp
LOCAL loJson
LOCAL loResp
LOCAL loSbResponseBody
LOCAL loJResp
LOCAL lnRespStatusCode
LOCAL lcToken
LOCAL lcExpires_after
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 -k -X POST https://your-webapp-hostname:your-webapp-port/v1/users/login \
*   -H 'Content-Type: application/json' \
*   --user 'admin:secret' \
*   -d '{"new_password" : "new-password"}'

loHttp.Login = "admin"
loHttp.Password = "secret"

* The following JSON is sent in the request body.

* {
*   "new_password": "new-password"
* }

loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("new_password","new-password")

loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpJson("POST","https://your-webapp-hostname:your-webapp-port/v1/users/login",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)

* {
*   "users": [
*     {
*       "token": "eyJhbGciOHlXVCJ9.eyJ1c2VyIjoNTIzMDE2Nn0.mEoF0COaO00Z1cANo",
*       "expires_after": "2018-03-01 15:29:26+00:00"
*     }
*   ]
* }

* Sample code for parsing the JSON response...

i = 0
lnCount_i = loJResp.SizeOfArray("users")
DO WHILE i < lnCount_i
    loJResp.I = i
    lcToken = loJResp.StringOf("users[i].token")
    lcExpires_after = loJResp.StringOf("users[i].expires_after")
    i = i + 1
ENDDO

RELEASE loHttp
RELEASE loJson
RELEASE loResp
RELEASE loSbResponseBody
RELEASE loJResp