Unsubscribe - Create

Add an address to the unsubscribe table using SQL Server

Prerequisites:

See SQLHTTP easy setup for Mailgun
See API Call documentation for parameter values and other information
Create the stored procedure documented below

Stored Procedure:


CREATE PROCEDURE usp_Mailgun_Unsubscribe_Create(
		@Profile nvarchar(100),	
		@CurrentURL nvarchar(MAX) = NULL,
		@emailAddress varchar(50),
		@tag char(20) = '*',
		@created_at varchar(30) = NULL,
		@Response nvarchar(MAX) OUTPUT,
		@StatusCode int OUTPUT,
		@StatusDescription nvarchar(MAX) OUTPUT)
AS

DECLARE @QueryString varchar(MAX)
DECLARE @Password nvarchar(4000)
DECLARE @HTTPSessionID uniqueidentifier

SET @created_at = GETDATE()

IF @CurrentURL IS NULL
	BEGIN

		SET @CurrentURL = 'https://api.mailgun.net/v3'

		EXEC SQLHTTP.net.UrlBuilder 	@CurrentURL OUTPUT,
						@Profile, 
						'#Domain', 
						'unsubscribes'

	END
		
EXEC SQLHTTP.net.QueryStringBuilder     @QueryString OUTPUT,
					@Profile, 
					'address', @emailAddress,
					'tag', @tag,
					'created_at', @created_at

SET @CurrentURL = @CurrentURL + @QueryString

EXEC SQLHTTP.net.HTTPSession @HTTPSessionID OUTPUT

SET @Password = SQLHTTP.net.AuthParam(@Profile, 'APIKey')

EXEC SQLHTTP.net.BasicAuthHeader @HttpSessionID, 'api', @Password

EXEC SQLHTTP.net.HTTPRequest   @HttpSessionID,
                               @URL = @CurrentURL,
                               @Method = 'POST',
                               @StatusCode = @StatusCode OUTPUT,
                               @StatusDescription = @StatusDescription OUTPUT,
                               @Response = @Response OUTPUT
GO

CREATE PROCEDURE usp_Mailgun_Unsubscribe_Create(

@Profile nvarchar(100),

@CurrentURL nvarchar(MAX) = NULL,

@emailAddress varchar(50),

@tag char(20) = '*',

@created_at varchar(30) = NULL,

@Response nvarchar(MAX) OUTPUT,

@StatusCode int OUTPUT,

@StatusDescription nvarchar(MAX) OUTPUT)

DECLARE @QueryString varchar(MAX)

DECLARE @Password nvarchar(4000)

DECLARE @HTTPSessionID uniqueidentifier

SET @created_at = GETDATE()

IF @CurrentURL IS NULL

BEGIN

SET @CurrentURL = 'https://api.mailgun.net/v3'

EXEC SQLHTTP.net.UrlBuilder @CurrentURL OUTPUT,

@Profile,

'#Domain',

'unsubscribes'

END

EXEC SQLHTTP.net.QueryStringBuilder @QueryString OUTPUT,

@Profile,

'address', @emailAddress,

'tag', @tag,

'created_at', @created_at

SET @CurrentURL = @CurrentURL + @QueryString

EXEC SQLHTTP.net.HTTPSession @HTTPSessionID OUTPUT

SET @Password = SQLHTTP.net.AuthParam(@Profile, 'APIKey')

EXEC SQLHTTP.net.BasicAuthHeader @HttpSessionID, 'api', @Password

EXEC SQLHTTP.net.HTTPRequest @HttpSessionID,

@URL = @CurrentURL,

@Method = 'POST',

@StatusCode = @StatusCode OUTPUT,

@StatusDescription = @StatusDescription OUTPUT,

@Response = @Response OUTPUT



Sample Usage:


DECLARE @CurrentURL nvarchar(MAX)
DECLARE @Response nvarchar(MAX)
DECLARE @StatusCode int
DECLARE @StatusDescription nvarchar(MAX)

EXEC usp_Mailgun_Unsubscribe_Create
		@Profile = 'My Mailgun',
		@CurrentURL = @CurrentURL,
		@emailAddress = 'bob@example.com',
		@tag = '*',
		@Response = @Response OUTPUT, 
		@StatusCode = @StatusCode OUTPUT, 
		@StatusDescription = @StatusDescription OUTPUT

IF @StatusCode >= 400
	EXEC SQLHTTP.net.RaiseHttpError @StatusCode, @StatusDescription, @Response
ELSE
	BEGIN
		DECLARE @X xml
		SET @X = SQLHTTP.net.Json_To_Xml(@Response, '0')

		--The XPath syntax below was easily generated by executing the following commands:
		--EXEC SQLHTTP.net.XQueryHelper @X
		--and then executing: 
		--EXEC SQLHTTP.net.XQueryHelper @X, 'JsonObject'
		
		SELECT T.C.value(N'@message', N'nvarchar(MAX)') AS [message]
		      ,T.C.value(N'@address', N'nvarchar(MAX)') AS [address]
		FROM @X.nodes(N'/JsonObject') T(C)

	END

DECLARE @CurrentURL nvarchar(MAX)

DECLARE @Response nvarchar(MAX)

DECLARE @StatusCode int

DECLARE @StatusDescription nvarchar(MAX)

EXEC usp_Mailgun_Unsubscribe_Create

@Profile = 'My Mailgun',

@CurrentURL = @CurrentURL,

@emailAddress = 'bob@example.com',

@tag = '*',

@Response = @Response OUTPUT,

@StatusCode = @StatusCode OUTPUT,

@StatusDescription = @StatusDescription OUTPUT

IF @StatusCode >= 400

EXEC SQLHTTP.net.RaiseHttpError @StatusCode, @StatusDescription, @Response

ELSE

BEGIN

DECLARE @X xml

SET @X = SQLHTTP.net.Json_To_Xml(@Response, '0')

--The XPath syntax below was easily generated by executing the following commands:

--EXEC SQLHTTP.net.XQueryHelper @X

--and then executing:

--EXEC SQLHTTP.net.XQueryHelper @X, 'JsonObject'

SELECT T.C.value(N'@message', N'nvarchar(MAX)') AS [message]

,T.C.value(N'@address', N'nvarchar(MAX)') AS [address]

FROM @X.nodes(N'/JsonObject') T(C)

END

message address

------------------------------------------------- --------------------

Address has been added to the unsubscribes table bob@example.com

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