(SQL Server) WhatsApp - Send a Text Message

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

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

For more information, see https://developers.facebook.com/docs/whatsapp/api/messages/text

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://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"
    --   }
    -- }

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

    EXEC sp_OAMethod @json, 'UpdateBool', @success OUT, 'preview_url', 0
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'recipient_type', 'individual'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'to', 'whatsapp-id-or-group-id'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'type', 'text'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'text.body', 'your-text-message-content'

    -- Adds the "Authorization: Bearer your-auth-token" header.
    EXEC sp_OASetProperty @http, 'AuthToken', 'your-auth-token'

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

    EXEC sp_OAMethod @http, 'HttpJson', @success OUT, 'POST', 'https://example.com/v1/messages', @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)

    -- {
    --   "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

    DECLARE @id nvarchar(4000)

    DECLARE @i int
    SELECT @i = 0
    DECLARE @count_i int
    EXEC sp_OAMethod @jResp, 'SizeOfArray', @count_i OUT, 'messages'
    WHILE @i < @count_i
      BEGIN
        EXEC sp_OASetProperty @jResp, 'I', @i
        EXEC sp_OAMethod @jResp, 'StringOf', @id OUT, 'messages[i].id'
        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