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(Go) Get GMail Message MetadataDemonstrates how to get the metadata for each message in a list of message IDs. Note: This example requires Chilkat v11.0.0 or greater. For more information, see https://developers.google.com/gmail/api/v1/reference/users/messages/get
success := false // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http := Http_Ref.html">chilkat.NewHttp() http.SetAuthToken("ACCESS_TOKEN") http.SetAccept("application/json") // Let's say we have the following JSON containing a list of message ID's // { // "messages": [ // { // "id": "1712bc1dc22da2a2", // "threadId": "1712bc1dc22da2a2" // }, // { // "id": "1712b94fa2168040", // "threadId": "1712b94fa2168040" // }, // { // "id": "1711e4bd96ded05e", // "threadId": "1711e4bd96ded05e" // }, // { // "id": "1711de0d119e751e", // "threadId": "1711de0d119e751e" // }, // { // "id": "1711c81a43050f59", // "threadId": "1711c81a43050f59" // }, // { // "id": "1711c2c1516abce5", // "threadId": "1711c2c1516abce5" // }, // { // "id": "1711c161e655c915", // "threadId": "1711c161e655c915" // }, // { // "id": "171199c6e454558c", // "threadId": "171199c6e454558c" // }, // { // "id": "17119474c8aa248e", // "threadId": "17119474c8aa248e" // } // ], // "nextPageToken": "16710921492249671162", // "resultSizeEstimate": 309 // } // Normally your program would have the above JSON in a string variable (obtained from a previous call to get // a list of message IDs from a GMail mailbox). In this example, we'll load the JSON from a file. jsonMsgIds := JsonObject_Ref.html">chilkat.NewJsonObject() success = jsonMsgIds.LoadFile("qa_data/json/gmail_message_ids.json") resp := HttpResponse_Ref.html">chilkat.NewHttpResponse() var id *string = new(string) i := 0 count_i := jsonMsgIds.SizeOfArray("messages") for i < count_i { jsonMsgIds.SetI(i) id = jsonMsgIds.StringOf("messages[i].id") // Get the metadata for this message ID. http.SetUrlVar("id",*id) success = http.HttpNoBody("GET","https://www.googleapis.com/gmail/v1/users/userId/messages/{$id}?format=metadata",resp) if success == false { fmt.Println(http.LastErrorText()) http.DisposeHttp() jsonMsgIds.DisposeJsonObject() resp.DisposeHttpResponse() return } fmt.Println("Response Status Code: ", resp.StatusCode()) jsonResponse := JsonObject_Ref.html">chilkat.NewJsonObject() jsonResponse.Load(resp.BodyStr()) jsonResponse.SetEmitCompact(false) fmt.Println(*jsonResponse.Emit()) if resp.StatusCode() != 200 { fmt.Println("Failed.") http.DisposeHttp() jsonMsgIds.DisposeJsonObject() resp.DisposeHttpResponse() jsonResponse.DisposeJsonObject() return } i = i + 1 } // Use this online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON http.DisposeHttp() jsonMsgIds.DisposeJsonObject() resp.DisposeHttpResponse() jsonResponse.DisposeJsonObject() |
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