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(DataFlex) Facebook User Feed (Read Posts)Demonstrates how to read the feed of posts (including status updates) and links published by this person, or by others on this person's profile. This introductory example gets the first few posts.
Use ChilkatAx-9.5.0-win32.pkg Procedure Test Variant vOauth2 Handle hoOauth2 Handle hoRest Boolean iSuccess String sResponseJson Handle hoJson Handle hoDtime Boolean iBLocalTime Variant vDt Handle hoDt Integer i Integer iNumItems String sMessage String sStory String sPrevUrl String sNextUrl String sTemp1 Integer iTemp1 Integer iTemp2 Integer iTemp3 Integer iTemp4 Integer iTemp5 Boolean bTemp1 // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example assumes a previously obtained an access token Get Create (RefClass(cComChilkatOAuth2)) To hoOauth2 If (Not(IsComObjectCreated(hoOauth2))) Begin Send CreateComObject of hoOauth2 End Set ComAccessToken Of hoOauth2 To "FACEBOOK-ACCESS-TOKEN" Get Create (RefClass(cComChilkatRest)) To hoRest If (Not(IsComObjectCreated(hoRest))) Begin Send CreateComObject of hoRest End // Connect to Facebook and send the following GET request: Get ComConnect Of hoRest "graph.facebook.com" 443 True True To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoRest To sTemp1 Showln sTemp1 Procedure_Return End // Provide the authentication credentials (i.e. the access key) Get pvComObject of hoOauth2 to vOauth2 Get ComSetAuthOAuth2 Of hoRest vOauth2 To iSuccess // We could limit the number of posts. The default limit is 25. Get ComAddQueryParam Of hoRest "limit" "5" To iSuccess Get ComFullRequestNoBody Of hoRest "GET" "/v2.7/me/feed" To sResponseJson Get ComLastMethodSuccess Of hoRest To bTemp1 If (bTemp1 <> True) Begin Get ComLastErrorText Of hoRest To sTemp1 Showln sTemp1 Procedure_Return End Get Create (RefClass(cComChilkatJsonObject)) To hoJson If (Not(IsComObjectCreated(hoJson))) Begin Send CreateComObject of hoJson End Set ComEmitCompact Of hoJson To False Get ComLoad Of hoJson sResponseJson To iSuccess // Show the JSON in human-readable format. Get ComEmit Of hoJson To sTemp1 Showln sTemp1 // A sample JSON response is shown below. // This is the code to parse the JSON response. Get Create (RefClass(cComCkDateTime)) To hoDtime If (Not(IsComObjectCreated(hoDtime))) Begin Send CreateComObject of hoDtime End Move True To iBLocalTime Move 0 To i Get ComSizeOfArray Of hoJson "data" To iNumItems While (i < iNumItems) Set ComI Of hoJson To i Showln "--- " i Get ComStringOf Of hoJson "data[i].message" To sMessage Get ComLastMethodSuccess Of hoJson To bTemp1 If (bTemp1 = True) Begin Showln "message: " sMessage End Get ComStringOf Of hoJson "data[i].story" To sStory Get ComLastMethodSuccess Of hoJson To bTemp1 If (bTemp1 = True) Begin Showln "story: " sStory End Get ComStringOf Of hoJson "data[i].id" To sTemp1 Showln "id: " sTemp1 // We can load the created_time into a CkDateTime... Get ComStringOf Of hoJson "data[i].created_time" To sTemp1 Get ComSetFromTimestamp Of hoDtime sTemp1 To iSuccess Get ComGetDtObj Of hoDtime iBLocalTime To vDt If (IsComObject(vDt)) Begin Get Create (RefClass(cComChilkatDtObj)) To hoDt Set pvComObject Of hoDt To vDt End Get ComMonth Of hoDt To iTemp1 Get ComDay Of hoDt To iTemp2 Get ComYear Of hoDt To iTemp3 Get ComHour Of hoDt To iTemp4 Get ComMinute Of hoDt To iTemp5 Showln iTemp1 "/" iTemp2 "/" iTemp3 " " iTemp4 ":" iTemp5 Send Destroy of hoDt Move i + 1 To i Loop // Finally, there are two paging URLs at the very bottom. Those can be accessed as shown: Get ComStringOf Of hoJson "paging.previous" To sPrevUrl Showln "URL for previous page: " sPrevUrl Get ComStringOf Of hoJson "paging.next" To sNextUrl Showln "URL for next page: " sNextUrl // ------------------------------------------------------------------- // This is a sample JSON response.. // { // "data": [ // { // "message": "This is the first post.", // "created_time": "2016-09-28T14:36:45+0000", // "id": "12345678901234567_12345678900000001" // }, // { // "message": "This is the 2nd post.", // "created_time": "2016-09-27T03:26:12+0000", // "id": "12345678901234567_12345678900000002" // }, // { // "story": "John Doe shared Mary's post.", // "created_time": "2016-09-26T15:45:10+0000", // "id": "12345678901234567_12345678900000003" // }, // { // "message": "https:\/\/www.somewebsite.org\/?ID=8158", // "created_time": "2016-09-26T02:29:20+0000", // "id": "12345678901234567_12345678900000004" // }, // { // "message": "http:\/\/blog.somebody.com\/post\/123", // "created_time": "2016-09-26T02:02:56+0000", // "id": "12345678901234567_12345678900000005" // }, // { // "story": "John Doe shared Bill's photo.", // "created_time": "2016-09-25T15:32:09+0000", // "id": "12345678901234567_12345678900000006" // }, // { // "message": "Check this out...", // "story": "John Doe shared NPR Music's video.", // "created_time": "2016-09-25T14:54:52+0000", // "id": "12345678901234567_12345678900000007" // }, // { // "message": "Yet another post...", // "created_time": "2016-09-24T17:21:30+0000", // "id": "12345678901234567_12345678900000008" // }, // { // "message": "http:\/\/www.somewhere.com\/blahblahblah\/", // "created_time": "2016-09-23T22:20:29+0000", // "id": "12345678901234567_12345678900000009" // }, // { // "message": "At Lincoln marsh ...", // "story": "John Doe added 2 new photos.", // "created_time": "2016-09-19T02:00:43+0000", // "id": "12345678901234567_12345678900000010" // }, // { // "message": "I would've went for a swim had it not been for the sign", // "created_time": "2016-09-19T01:59:47+0000", // "id": "12345678901234567_12345678900000011" // }, // { // "story": "John Doe shared Steve's video.", // "created_time": "2016-09-17T22:00:02+0000", // "id": "12345678901234567_12345678900000012" // }, // { // "message": "Another sample message...", // "story": "John Doe shared XYZ's post.", // "created_time": "2016-09-17T14:13:16+0000", // "id": "12345678901234567_12345678900000013" // }, // { // "message": "Hello World!", // "created_time": "2016-09-16T23:17:13+0000", // "id": "12345678901234567_12345678900000014" // }, // { // "message": "https:\/\/www.youtube.com\/watch?v=xyz", // "created_time": "2016-09-15T04:13:02+0000", // "id": "12345678901234567_12345678900000015" // }, // { // "story": "John Doe shared Emily's photo.", // "created_time": "2016-09-14T16:37:10+0000", // "id": "12345678901234567_12345678900000016" // }, // { // "story": "John Doe shared Vincent's photo.", // "created_time": "2016-09-14T14:03:42+0000", // "id": "12345678901234567_12345678900000017" // }, // { // "message": "https:\/\/www.chilkatsoft.com\/", // "created_time": "2016-09-14T02:29:37+0000", // "id": "12345678901234567_12345678900000018" // }, // { // "message": "So cool! Marcus jamming with this 16 year old kid...", // "created_time": "2016-09-13T17:04:53+0000", // "id": "12345678901234567_12345678900000019" // }, // { // "message": "Wow!", // "story": "John Doe shared Somebody's post.", // "created_time": "2016-09-13T14:11:18+0000", // "id": "12345678901234567_12345678900000020" // } // ], // "paging": { // "previous": "https:\/\/graph.facebook.com\/v2.7\/12345678901234567\/feed?since=1475073405&limit=25&__paging_token=enc_abcT9x9GFabcTxvnyXZC0xnHZCrH2h4yjNZCZAUabcZAI9TyZBibwat6wCYiSFTxR4nSDZAkzaN8vIaEPmqrabc1QTIbGac&__previous=1", // "next": "https:\/\/graph.facebook.com\/v2.7\/12345678901234567\/feed?limit=25&until=1473426350&__paging_token=enc_AdDFWabcYtV5ob6lFO8LZAMhm7LKCxntawqqabcZALyC8WZB8Th2lON7HGuJRabzW6Ivfm93LORIw9NNBuHpob7abcjh" // } // } // End_Procedure |
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