I am breaking my head trying to upload a feed to walmart, after many times trying i used postman to generate C# restsharp code for me, in postman it works, but when using the c# restsharp code it returns a mysterious error. like this:
"No message body writer has been found for response class FeedAcknowledgement"
what does that mean?
here is my code:
string requestUrl = "";
requestUrl = string.Format("https://marketplace.walmartapis.com/v2/feeds?feedType=inventory");
string method = "POST";
// string[] sig = getSig(method, requestUrl).Replace("\r", "").Split('\n');
var mySig = new Signature(ConsumerID, SecretKEY, requestUrl, method);
var s = mySig.TimeStamp;
var returendSigniture = mySig.GetSignature(s);
var client = new RestClient("https://marketplace.walmartapis.com/v2/feeds?feedType=inventory");
var request = new RestRequest(Method.POST);
//request.AddHeader("postman-token", "c325ba5f-813a-f990-7899-6bfc4b14aa1b");
request.AddHeader("cache-control", "no-cache");
request.AddHeader("content-type", "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW");
request.AddHeader("accept", "application/xml");
request.AddHeader("wm_consumer.id", "--");
request.AddHeader("wm_sec.auth_signature", returendSigniture);
request.AddHeader("wm_sec.timestamp", mySig.TimeStamp);
request.AddHeader("wm_qos.correlation_id", "123456abcdef");
request.AddHeader("wm_svc.name", "Walmart Marketplace");
request.AddParameter("multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW", "------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name=\"BOUNDERY\"\r\n\r\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<wm:inventory xmlns:wm=\"http://walmart.com/\">\n <wm:sku>PP00500-2PC</wm:sku>\n <wm:quantity>\n <wm:unit>EACH</wm:unit>\n <wm:amount>120</wm:amount>\n </wm:quantity>\n <wm:fulfillmentLagTime>1</wm:fulfillmentLagTime>\n</wm:inventory>\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW--", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
I spent all day in figuring out how to request Walmart v3. I propose you the following two steps:
Use Walmart signer in order to generate signed token.
You will need to use HttpWebRequest for getting response from Walmart in a way similar to what is described here.
I have not been able to get this to work natively in C#, but I do have a work around.
The Java SDK can successfully submit multi-part requests to Walmart. I wrote a wrapper around the SDK functions that can accept basic command line input to read a text file and send the appropriate call with attached files. From here, you can just call the .jar file (I do it via dynamically generated batch file) from your C# program and receive responses back via text file. This is a sub-optimal system, but it works reliably and when the choice was between updating inventory on 2000 items every day and using some dirty code, I went with the Java wrapper method. This will be replaced as soon as the C# SDK comes out, but I believe this is one of the reasons why the C# SDK may be being delayed.
This solution was used, only after spending about a week trying to get boundaries / streams / attachments to work in C# and having zero success. Cases were also submitted to walmart and I was able to work with some of their top tier engineering support staff and this problem completely stumped them. I was able to trace the Java SDK execution all the way down to a built in Maven / Java function that constructed the web request so there's something under the hood that Java is doing with a multi-part request that isn't immediately clear in C#.
Related
I received a Postman json collection from an API vendor that works perfectly, but has something mystifying to me: The request is in a GET format, yet there is an x-www-form-urlencoded body.
URL: https://login.microsoftonline.com/d1e<secret>9563/oauth2/token
And when I look at the postman-generated c# code, the mystery continues:
var client = new RestClient("https://login.microsoftonline.com/d1e...d3/oauth2/token");
client.Timeout = -1;
var request = new RestRequest(Method.GET);
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("grant_type", "client_credentials");
request.AddParameter("client_id", "c06bb...79");
request.AddParameter("client_secret", "7~u...D");
request.AddParameter("resource", "https://vault.azure.net");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);
Note the AddParameter constructions for a GET call. To me, this must be a slight-of-hand for merely adding those values to the querystring. But when I look at the postman console I see:
In the postman console I would have expected to see those params appended to the url as a querystring, and then everything would have made sense. But you can see that it's a bonafide Request Body.
When I make GET calls in my c# code I like to use the simple yet solid WebClient object to call the DownloadString() method. But this method is only for GETs and there's no way to send a form-post style body, understandably.
Is postman truly sending a GET with all those values being appended to the url as a querystring? And should I do the same in my DownloadString() call? Or is there something else going on here? Should I instead, in my c#, be calling the UploadString() method and sending a form post BODY as a GET??
Http protocol supports adding a body to a request, but the WebClient class you use doesn't. Presumably because it isn't considered the norm.
I'm sure there's good reasons for Microsoft using it in the OAuth flow though. Those guys normally do things right!
HTTP GET with request body
API is just an abstraction , you can send what ever you want to the API . It depends on the implementation , how the server handles these data.
Some services considers only what it requires and ignores other information
some services considers the entire requests and validates that it has only the allowed data. what should be allowed depends on the service
Postman is just a client that sends data to server , its upto you to decide what all information it should send . If you dont need any body then keep it as none. if you need some thing then add it.
i'm having a little piece of python code which makes a web request using the urllib2 as you can se below
import json
import urllib2
urlRequest = urllib2.Request('<link>')
urlRequest.add_header('Content-Type', 'application/json')
urlRequest.add_header('RegistrationToken', '<token>')
data = {
'content': '<c>',
'messagetype': 'RichText',
'contenttype': 'text',
'id': '<id>'
}
urllib2.urlopen(urlRequest, json.dumps(data))
As i was trying to do it in C# i came across the following problems
how to i send the data
how do i add the headers?
After googling for a while i managed to write this code:
var request = (HttpWebRequest)WebRequest.Create(url_input.Text);
request.ContentType = "application/json";
request.Headers["RegistrationToken"] = rtoken_input.Text;
request.GetResponse();
I managed to deal with the headers part but the question on the data still remains. Also what is the best way to json encode something?
Anyone who knows what to do?
If you are after serializing the POST data to a JSON payload there are few options.
1) System.Web.Helpers.Json.Encode MSDN Link
2) using the JSON.NET library Link
As for your attempt on converting python to C# you are on the correct track.
Refer to this link
Alternatively you could make use of the WebClient class MSDN Link
Refer to this link as well
Pseudo code
var client = new WebClient();
client.Headers.Add("Content-Type", "application/json");
client.Headers.Add("RegistrationToken", "<token>");
string response = client.UploadString("<link>", "<json string>");
I want to call an API called Cloud Sight that provides image recognition.
I want to get a response that basically describes the image from a URL of an image provided from the API Cloud Sight.
This is the code that I Have thus far
var client = new RestClient ("http://api.cloudsightapi.com/image_request");
var request = new RestRequest("http://cdn.head-fi.org/c/c8/1000x500px-c8c39533_beats-by-dre-studio.jpg", Method.POST);
request.AddHeader ("CloudSight", [API KEY HERE]);
IRestResponse response = client.Execute(request);
var content = response.Content;
Console.WriteLine (content);
I get an error that says
{"status":"404","error":"Not Found"}
The documentation for Cloud Sight is not very insightful for each individual language, so I am unsure if I am calling it correctly, particularly, the AddHeader part.
It may also be an error with not waiting for a response. My code executes immediately and the API example that Cloud Sight provides on their website takes 10-15 seconds.
Any ideas for how to go about getting this API working with RestSharp?
Just a guess, but have you tried Method.GET instead of Method.POST? It'd be highly unusual to fetch an image via a POST.
++++++++++++++
Actual Scenario: I am working on a site (ASP.Net using C#) where the system will have 3 different subscription plans i.e. monthly, quarterly and yearly. All the subscription plans have their own cost and pricing. Now, if the system/admin wants to give any discounts to any subscribed user (regardless of subscription plan) on their on-going subscription based on some business logic (for example, for some user it may be $4 and for other it may be $25). How can I achieve this goal. I tried PayPal and Recurly, but stuck in-between.
++++++++++++++
I have to create a coupon and redeem the same using Recurly dynamically in C#. But, as per the code mentioned in "https://docs.recurly.com/api/v1/subscription-plans", we have to use Recurly API v2, but we don't have the code to create and redeem the coupon. So, please help me on how can I create coupons and redeem the same.
When we are using below code in mentioned URL "Recurly PUT request working but returning server error", it causes error while getting response.
uri = "https://" + subdomain + ".recurly.com/v2/subscriptions/" + uuid + "/reactivate";
try
{
string xml = "<subscription><timeframe>now</timeframe></subscription>"; //also tried with blank string.
byte[] arr = System.Text.Encoding.UTF8.GetBytes(xml);
HttpWebRequest renewRequest = (HttpWebRequest)WebRequest.Create(uri);
renewRequest.Headers.Add("Authorization", "Basic " + encodeB64);
renewRequest.Method = "PUT";
renewRequest.ContentType = "text/XML";
renewRequest.ContentLength = arr.Length;
Stream datastream = renewRequest.GetRequestStream();
datastream.Write(arr, 0, arr.Length);
datastream.Close();
HttpWebResponse renewResponse = (HttpWebResponse)renewRequest.GetResponse();
}
Looking for kind response and help...
We (recurly.com) just made available a release candidate of an all new API client for C# compatible with Recurly APIv2 that we highly recommend using. The client API is stable and this release will shortly become the final release pending new show-stopping bugs.
Here's how to get started using it.
Be sure set up your configuration.
Here's how to create a coupon.
Here's how to redeem coupons.
More examples are available here.
If you have further questions please don't hesitate to ask our support team! support#recurly.com.
The lack of documentation on this subject coupled with the fact that I'm struggling with a learning curve on all fronts and making me really confused about where to start. I need to get this done using C# if possible. I apologize for the vagueness of this question, but I'm really lost. I would love links to comprehensive guides/references.
In my efforts to get this done, I've run into the following problems/questions:
I've created a web service using the otrs gui, with the operation CreateTicket, but requests via C# to my chosen namespace are returning 404 (not found). When I try to add a service reference or web reference with that namespace, I get the same error. However, when I plug that namespace into my browser as the url, it displays "customer.pl".
Can I send a soap request without adding the web service as a service reference in visual studio? Given the previous problem I'm having I can't do it that way. Would I just build the soap request string and write it to the web request's data stream with http://domain/rpc.pl as the uri?
If the answer to the previous question is yes... When trying the below code segment I get an internal server error (500) on the last line. However the header looks like a SOAP header which confuses me because I wouldn't have thought it got that far.
var document = new StringBuilder();
document.Append("<UserLogin>some user login</UserLogin>");
document.Append("<Password>some password</Password> ");
document.Append("<Ticket>");
document.Append("<Title>some title</Title> ");
document.Append("<CustomerUser>some customer user login</CustomerUser>");
document.Append("<Queue>some queue</Queue>");
document.Append("<State>some state</State>");
document.Append("<Priority>some priority</Priority>");
document.Append("</Ticket>");
document.Append("<Article>");
document.Append("<Subject>some subject</Subject>");
document.Append("<Body>some body</Body>");
document.Append("<ContentType>text/plain; charset=utf8</ContentType>");
document.Append("</Article>");
//var uri = new Uri("http://domain/injest");
var uri = new Uri("http://domain/rpc.pl");
var httpWebReq = (HttpWebRequest)WebRequest.Create(uri);
var bytePostData = Encoding.UTF8.GetBytes(document.ToString());
httpWebReq.Timeout = 5 * 1000;
httpWebReq.Method = "POST";
httpWebReq.ContentLength = bytePostData.Length;
httpWebReq.ContentType = "text/xml;charset=utf-8";
//httpWebReq.TransferEncoding=
//httpWebReq.ContentType = "application/xml";
//httpWebReq.Accept = "application/xml";
var dataStream = httpWebReq.GetRequestStream();
dataStream.Write(bytePostData, 0, bytePostData.Length);
dataStream.Close();
var httpWebResponse = (HttpWebResponse)httpWebReq.GetResponse();
Even if all you can offer is where to start, it would help me to know how to proceed, as I'm stumped.
You're using the rpc.pl endpoint which is part of the 'old' RPC-style interface.
You mention you added the web service via the GUI which means you're using the 'new' Generic Interface, which is indeed much easier from .Net.
The address of the endpoint is /otrs/nph-genericinterface.pl/Webservice/GenericTicketConnector or whatever you have called the web service in the admin section.