(SQL Server) REST POST JSON using Gzip Content Encoding

Demonstrates how to send a JSON POST using the gzip Content-Encoding.

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
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- Use the online tool at https://tools.chilkat.io/Default.cshtml
    -- to generate the JSON code that creates this JSON:

    -- {
    --     "lists": [
    --         {
    --             "id": "1511199999"
    --         }
    --     ],
    --     "confirmed": false,
    --     "email_addresses": [
    --         {
    --             "email_address": "support@chilkatsoft.com"
    --         }
    --     ],
    --     "first_name": "Matt",
    --     "last_name": "Smith"
    -- }
    -- 

    DECLARE @json int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'lists[0].id', '1511199999'
    EXEC sp_OAMethod @json, 'UpdateBool', @success OUT, 'confirmed', 0
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'email_addresses[0].email_address', 'support@chilkatsoft.com'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'first_name', 'Matt'
    EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'last_name', 'Smith'

    DECLARE @rest int
    -- Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Rest', @rest OUT

    DECLARE @success int
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'api.constantcontact.com', 443, 1, 1
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Type', 'application/json'
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Authorization', 'Bearer xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx'

    -- Tell the server you'll accept only an application/json response.
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Accept', 'application/json'

    -- Indicate that we'll be sending the request body gzipped.
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Encoding', 'gzip'

    DECLARE @sbReq int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbReq OUT

    EXEC sp_OAMethod @json, 'EmitSb', @success OUT, @sbReq

    -- Send the POST.
    DECLARE @sbResp int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResp OUT

    EXEC sp_OAMethod @rest, 'FullRequestSb', @success OUT, 'POST', '/v2/contacts?action_by=ACTION_BY_VISITOR&api_key=xxxxxxx', @sbReq, @sbResp
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @sbReq
        EXEC @hr = sp_OADestroy @sbResp
        RETURN
      END


    PRINT 'Response body:'
    EXEC sp_OAMethod @sbResp, 'GetAsString', @sTmp0 OUT
    PRINT @sTmp0

    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
        PRINT 'Received error response code: ' + @iTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @sbReq
        EXEC @hr = sp_OADestroy @sbResp
        RETURN
      END

    DECLARE @jsonResp int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jsonResp OUT

    EXEC sp_OAMethod @jsonResp, 'LoadSb', @success OUT, @sbResp

    -- Use the online tool at https://tools.chilkat.io/jsonParse.cshtml
    -- to generate the JSON code that parses the JSON response..

    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @sbReq
    EXEC @hr = sp_OADestroy @sbResp
    EXEC @hr = sp_OADestroy @jsonResp


END
GO