(SQL Server) Google Contacts - Retrieve as JSON

Demonstrates how to retrieve Google Contacts as JSON.

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

    -- --------------------------------------------------------------------------------------------------------
    -- Note: The code for setting up the Chilkat REST object and making the initial connection can be done once.
    -- Once connected, the REST object may be re-used for many REST API calls.
    -- (It's a good idea to put the connection setup code in a separate function/subroutine.)
    -- --------------------------------------------------------------------------------------------------------

    -- It is assumed we previously obtained an OAuth2 access token.
    -- This example loads the JSON access token file 
    -- saved by this example: Get Google Contacts OAuth2 Access Token

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

    DECLARE @success int
    EXEC sp_OAMethod @jsonToken, 'LoadFile', @success OUT, 'qa_data/tokens/googleContacts.json'
    IF @success <> 1
      BEGIN

        PRINT 'Failed to load googleContacts.json'
        EXEC @hr = sp_OADestroy @jsonToken
        RETURN
      END

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

    EXEC sp_OAMethod @jsonToken, 'StringOf', @sTmp0 OUT, 'access_token'
    EXEC sp_OASetProperty @gAuth, 'AccessToken', @sTmp0

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

    -- Connect using TLS.
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'www.google.com', 443, 1, @bAutoReconnect

    -- Provide the authentication credentials (i.e. the access token)
    EXEC sp_OAMethod @rest, 'SetAuthGoogle', @success OUT, @gAuth

    -- ----------------------------------------------
    -- OK, the REST connection setup is completed..
    -- ----------------------------------------------

    -- To retrieve the contacts, we need to send the following:

    -- 	GET /m8/feeds/contacts/default/full
    -- 	GData-Version: 3.0

    -- To get the contacts data in JSON format, set the "alt" query parameter to "json"
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'alt', 'json'
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'GData-Version', '3.0'

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

    EXEC sp_OAMethod @rest, 'FullRequestNoBodySb', @success OUT, 'GET', '/m8/feeds/contacts/default/full', @sbResponseBody
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @gAuth
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @sbResponseBody
        RETURN
      END

    -- A successful response will have a status code equal to 200.
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
        PRINT 'response status code = ' + @iTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseStatusText', @sTmp0 OUT
        PRINT 'response status text = ' + @sTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseHeader', @sTmp0 OUT
        PRINT 'response header: ' + @sTmp0

        EXEC sp_OAMethod @sbResponseBody, 'GetAsString', @sTmp0 OUT
        PRINT 'response body: ' + @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @gAuth
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @sbResponseBody
        RETURN
      END

    -- If the 200 response was received, then the contacts JSON is contained
    -- in the response body.
    DECLARE @json int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

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

    -- Save the pretty-printed JSON response to a file.
    EXEC sp_OAMethod @sbResponseBody, 'Clear', NULL
    EXEC sp_OAMethod @json, 'EmitSb', @success OUT, @sbResponseBody
    EXEC sp_OAMethod @sbResponseBody, 'WriteFile', @success OUT, 'qa_output/google_contacts.json', 'utf-8', 0

    -- Parse the Google Contacts JSON, and iterate over the contacts..
    DECLARE @totalResults int
    EXEC sp_OAMethod @json, 'IntOf', @totalResults OUT, 'feed.openSearch$totalResults.$t'
    DECLARE @startIndex int
    EXEC sp_OAMethod @json, 'IntOf', @startIndex OUT, 'feed.openSearch$startIndex.$t'
    DECLARE @itemsPerPage int
    EXEC sp_OAMethod @json, 'IntOf', @itemsPerPage OUT, 'feed.openSearch$itemsPerPage.$t'

    PRINT 'totalResults = ' + @totalResults

    PRINT 'startIndex = ' + @startIndex

    PRINT 'itemsPerPage = ' + @itemsPerPage

    DECLARE @numEntries int
    EXEC sp_OAMethod @json, 'SizeOfArray', @numEntries OUT, 'feed.entry'
    DECLARE @i int
    SELECT @i = 0
    WHILE @i < @numEntries
      BEGIN
        EXEC sp_OASetProperty @json, 'I', @i

        PRINT @i + 1 + ' ----'

        EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'feed.entry[i].title.$t'
        PRINT 'title: ' + @sTmp0

        DECLARE @fullName nvarchar(4000)
        EXEC sp_OAMethod @json, 'StringOf', @fullName OUT, 'feed.entry[i].gd$name.gd$fullName.$t'
        EXEC sp_OAGetProperty @json, 'LastMethodSuccess', @iTmp0 OUT
        IF @iTmp0 = 1
          BEGIN

            PRINT 'fullName: ' + @fullName
          END

        -- There can be multiple email addresses, so it's stored as a JSON array..
        DECLARE @numEmailAddresses int
        EXEC sp_OAMethod @json, 'SizeOfArray', @numEmailAddresses OUT, 'feed.entry[i].gd$email'
        DECLARE @j int
        SELECT @j = 0
        WHILE @j < @numEmailAddresses
          BEGIN
            DECLARE @emailAddress nvarchar(4000)
            EXEC sp_OAMethod @json, 'StringOf', @emailAddress OUT, 'feed.entry[i].gd$email[j].address'
            EXEC sp_OAGetProperty @json, 'LastMethodSuccess', @iTmp0 OUT
            IF @iTmp0 = 1
              BEGIN

                PRINT 'email address: ' + @emailAddress
              END
            SELECT @j = @j + 1
          END

        SELECT @i = @i + 1
      END

    -- A sample Google Contacts JSON response:

    -- 	{ 
    -- 	  "version": "1.0",
    -- 	  "encoding": "UTF-8",
    -- 	  "feed": { 
    -- 	    "xmlns": "http://www.w3.org/2005/Atom",
    -- 	    "xmlns$openSearch": "http://a9.com/-/spec/opensearch/1.1/",
    -- 	    "xmlns$gContact": "http://schemas.google.com/contact/2008",
    -- 	    "xmlns$batch": "http://schemas.google.com/gdata/batch",
    -- 	    "xmlns$gd": "http://schemas.google.com/g/2005",
    -- 	    "gd$etag": "\"QHw5eTVSLyt7I2A9XRFaE0kNTwI.\"",
    -- 	    "id": { 
    -- 	      "$t": "chilkat.support@gmail.com"
    -- 	    },
    -- 	    "updated": { 
    -- 	      "$t": "2016-11-17T01:57:41.221Z"
    -- 	    },
    -- 	    "category": [
    -- 	      { 
    -- 	        "scheme": "http://schemas.google.com/g/2005#kind",
    -- 	        "term": "http://schemas.google.com/contact/2008#contact"
    -- 	      }
    -- 	    ],
    -- 	    "title": { 
    -- 	      "$t": "Chilkat Support's Contacts"
    -- 	    },
    -- 	    "link": [
    -- 	      { 
    -- 	        "rel": "alternate",
    -- 	        "type": "text/html",
    -- 	        "href": "https://www.googleapis.com/"
    -- 	      },
    -- 	      { 
    -- 	        "rel": "http://schemas.google.com/g/2005#feed",
    -- 	        "type": "application/atom+xml",
    -- 	        "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full"
    -- 	      },
    -- 	      { 
    -- 	        "rel": "http://schemas.google.com/g/2005#post",
    -- 	        "type": "application/atom+xml",
    -- 	        "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full"
    -- 	      },
    -- 	      { 
    -- 	        "rel": "http://schemas.google.com/g/2005#batch",
    -- 	        "type": "application/atom+xml",
    -- 	        "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full/batch"
    -- 	      },
    -- 	      { 
    -- 	        "rel": "self",
    -- 	        "type": "application/atom+xml",
    -- 	        "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full?max-results=25&alt=json"
    -- 	      },
    -- 	      { 
    -- 	        "rel": "next",
    -- 	        "type": "application/atom+xml",
    -- 	        "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full?max-results=25&alt=json&start-index=26"
    -- 	      }
    -- 	    ],
    -- 	    "author": [
    -- 	      { 
    -- 	        "name": { 
    -- 	          "$t": "Chilkat Support"
    -- 	        },
    -- 	        "email": { 
    -- 	          "$t": "chilkat.support@gmail.com"
    -- 	        }
    -- 	      }
    -- 	    ],
    -- 	    "generator": { 
    -- 	      "version": "1.0",
    -- 	      "uri": "http://www.google.com/m8/feeds",
    -- 	      "$t": "Contacts"
    -- 	    },
    -- 	    "openSearch$totalResults": { 
    -- 	      "$t": "350"
    -- 	    },
    -- 	    "openSearch$startIndex": { 
    -- 	      "$t": "1"
    -- 	    },
    -- 	    "openSearch$itemsPerPage": { 
    -- 	      "$t": "25"
    -- 	    },
    -- 	    "entry": [
    -- 	      { 
    -- 	        "id": { 
    -- 	          "$t": "http://www.google.com/m8/feeds/contacts/chilkat.support%40gmail.com/base/0"
    -- 	        },
    -- 	        "gd$etag": "\"SX8zcTVSLyt7I2A9WxBXFU4MQwI.\"",
    -- 	        "updated": { 
    -- 	          "$t": "2010-01-26T20:07:48.189Z"
    -- 	        },
    -- 	        "app$edited": { 
    -- 	          "xmlns$app": "http://www.w3.org/2007/app",
    -- 	          "$t": "2010-01-26T20:07:48.189Z"
    -- 	        },
    -- 	        "category": [
    -- 	          { 
    -- 	            "scheme": "http://schemas.google.com/g/2005#kind",
    -- 	            "term": "http://schemas.google.com/contact/2008#contact"
    -- 	          }
    -- 	        ],
    -- 	        "title": { 
    -- 	          "$t": "Joe Sample"
    -- 	        },
    -- 	        "link": [
    -- 	          { 
    -- 	            "rel": "http://schemas.google.com/contacts/2008/rel#photo",
    -- 	            "type": "image/*",
    -- 	            "href": "https://www.googleapis.com/m8/feeds/photos/media/chilkat.support%40gmail.com/0"
    -- 	          },
    -- 	          { 
    -- 	            "rel": "self",
    -- 	            "type": "application/atom+xml",
    -- 	            "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full/0"
    -- 	          },
    -- 	          { 
    -- 	            "rel": "edit",
    -- 	            "type": "application/atom+xml",
    -- 	            "href": "https://www.googleapis.com/m8/feeds/contacts/chilkat.support%40gmail.com/full/0"
    -- 	          }
    -- 	        ],
    -- 	        "gd$name": { 
    -- 	          "gd$fullName": { 
    -- 	            "$t": "Joe Sample"
    -- 	          },
    -- 	          "gd$givenName": { 
    -- 	            "$t": "Joe"
    -- 	          },
    -- 	          "gd$familyName": { 
    -- 	            "$t": "Sample"
    -- 	          }
    -- 	        },
    -- 	        "gd$email": [
    -- 	          { 
    -- 	            "address": "somebody@gmail.com",
    -- 	            "primary": "true",
    -- 	            "rel": "http://schemas.google.com/g/2005#other"
    -- 	          }
    -- 	        ]
    -- 	      },
    -- 		... more entries ...
    -- 	

    EXEC @hr = sp_OADestroy @jsonToken
    EXEC @hr = sp_OADestroy @gAuth
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @sbResponseBody
    EXEC @hr = sp_OADestroy @json


END
GO