(SQL Server) WhatsApp - Login

Log in to get your authentication token (which is to be used in the "Authorization: Bearer your-auth-token" header in other REST API calls).

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

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

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

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Implements the following CURL command:

    -- curl -X POST https://your-webapp-hostname:your-webapp-port/v1/users/login \
    --   -H 'Content-Type: application/json' \
    --   --user 'username:password' \
    --   -d '{}'

    EXEC sp_OASetProperty @http, 'Login', 'username'
    EXEC sp_OASetProperty @http, 'Password', 'password'

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

    -- {}

    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpJson', @success OUT, 'POST', 'https://your-webapp-hostname:your-webapp-port/v1/users/login', @json, 'application/json', @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    DECLARE @sbResponseBody int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResponseBody OUT

    EXEC sp_OAMethod @resp, 'GetBodySb', @success OUT, @sbResponseBody
    DECLARE @jResp int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jResp OUT

    EXEC sp_OAMethod @jResp, 'LoadSb', @success OUT, @sbResponseBody
    EXEC sp_OASetProperty @jResp, 'EmitCompact', 0


    PRINT 'Response Body:'
    EXEC sp_OAMethod @jResp, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @respStatusCode int
    EXEC sp_OAGetProperty @resp, 'StatusCode', @respStatusCode OUT

    PRINT 'Response Status Code = ' + @respStatusCode
    IF @respStatusCode >= 400
      BEGIN

        PRINT 'Response Header:'
        EXEC sp_OAGetProperty @resp, 'Header', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed.'
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @resp
        EXEC @hr = sp_OADestroy @sbResponseBody
        EXEC @hr = sp_OADestroy @jResp
        RETURN
      END

    -- 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...

    DECLARE @token nvarchar(4000)

    DECLARE @expires_after nvarchar(4000)

    DECLARE @i int
    SELECT @i = 0
    DECLARE @count_i int
    EXEC sp_OAMethod @jResp, 'SizeOfArray', @count_i OUT, 'users'
    WHILE @i < @count_i
      BEGIN
        EXEC sp_OASetProperty @jResp, 'I', @i
        EXEC sp_OAMethod @jResp, 'StringOf', @token OUT, 'users[i].token'
        EXEC sp_OAMethod @jResp, 'StringOf', @expires_after OUT, 'users[i].expires_after'
        SELECT @i = @i + 1
      END

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @resp
    EXEC @hr = sp_OADestroy @sbResponseBody
    EXEC @hr = sp_OADestroy @jResp


END
GO