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C# UWP/WinRT Web API Examples

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(C# UWP/WinRT) Xero Upload File (Files API)

Demonstrates how to upload a file to a Xero folder.

Note: This example requires Chilkat v9.5.0.64 or greater.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

// Note: Requires Chilkat v9.5.0.64 or greater.

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

Chilkat.Rest rest = new Chilkat.Rest();
bool success;

// Before sending REST API calls, the REST object needs to be
// initialized for OAuth1.
// See Xero 2-Legged OAuth1 Setup for sample code.

// Assuming the REST object's OAuth1 authenticator is setup, and the initial
// connection was made, we may now send REST HTTP requests..

// --------------------------------------------------------------
// This example will upload a file to a folder using the Xero FILES API

string folderID = "0ffca059-f2f1-4271-8de9-4b87c8c2c638";
// This JPG image can be downloaded from https://www.chilkatsoft.com/syncedImages/penguins.jpg
string filename = "penguins.jpg";

Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
sbPath.Append("/files.xro/1.0/Files/{FolderId}");
int numReplaced = sbPath.Replace("{FolderId}",folderID);

rest.AddHeader("Content-Type","image/jpeg");

// Load the JPG image from a file.
Chilkat.BinData jpgData = new Chilkat.BinData();
success = jpgData.LoadFile("qa_data/jpg/penguins.jpg");

// We could alternatively get it from a URL like this:
Chilkat.BinData jpgDataFromWeb = new Chilkat.BinData();
Chilkat.Http http = new Chilkat.Http();
success = await http.QuickGetBdAsync("https://www.chilkatsoft.com/syncedImages/penguins.jpg",jpgDataFromWeb);
if (success != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// 
// Put the file data in the 1st sub-part in the multipart/form-data request we'll be sending.
rest.PartSelector = "1";
rest.SetMultipartBodyBd(jpgData);

// Set request headers in the 1st subpart (as indicated by the PartSelector)
rest.AddHeader("Content-Type","image/jpeg");
rest.AddHeader("Content-Disposition","multipart/form-data; name=Xero; filename=penguins.jpg");

// Restore the PartSelector to an empty string.
rest.PartSelector = "";

rest.AddHeader("Content-Type","multipart/form-data");

// Upload with a multipart/form-data POST
string responseJson = await rest.FullRequestMultipartAsync("POST",sbPath.GetAsString());
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.Load(responseJson);
json.EmitCompact = false;

// A 201 response is expected for actual success.
// The Xero documentation doesn't explicitly state it, but that's what we've found in testing.
// To be safe, we'll check for either 200 or 201.
if ((rest.ResponseStatusCode != 200) && (rest.ResponseStatusCode != 201)) {
    Debug.WriteLine(json.Emit());
    return;
}

// Examine the JSON response
Debug.WriteLine(json.Emit());

// A successful response looks like this:

// 	{ 
// 	  "Name": "penguins.jpg",
// 	  "MimeType": "image/jpeg",
// 	  "Size": 777835,
// 	  "CreatedDateUtc": "2016-11-12T15:31:53.4230000",
// 	  "UpdatedDateUtc": "2016-11-12T15:31:53.4230000",
// 	  "User": { 
// 	    "Name": "admin@chilkatsoft.com",
// 	    "FirstName": "Matthew",
// 	    "LastName": "Smith",
// 	    "FullName": "Matthew Smith",
// 	    "Id": "c362fe42-cb12-461f-b84a-c281c1a74841"
// 	  },
// 	  "FolderId": "0ffca059-f2f1-4271-8de9-4b87c8c2c638",
// 	  "Id": "f042e9a3-a31d-4595-b8b3-6030ea6084bb"
// 	}

 

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