I am new to web api. I created a sample web api and it works fine to return all data from a table and by Id. Right now I am trying to create a function to take multiple parameters but I get errors with "HTTP Error 404.0 - Not Found". Below is my code and I have no clue where the problem is:
enter code here
// GET: api/Biosample
// http://localhost:53205/api/Biosample/example1/catalognbr/campusstr/
[Route("example1/{catalognbr}/{campusstr}")]
[HttpGet]
public IQueryable<Biosample> GetBiosample(float catalognbr, string campusstr)
{
var Biosample= (from a in db.Biosample
where a.CATALOG_NBR == catalognbr &&
a.CAMPUS_NAME.Contains(campusstr)
select a
);
return Biosample;
}
Related
I have a question regarding a small issue that I'm having. I've created a widget that will live on the Service Portal to allow an admin to Accept or Reject requests.
The data for the widget is pulling from the Approvals (approval_approver) table. Under my GlideRecord, I have a query that checks for the state as requested. (Ex. addQuery('state', 'requested'))
To narrow down the search, I tried entering addQuery('sys_id', current.sys_id). When I use this query, my script breaks and I get an error on the Service Portal end.
Here's a sample of the GlideRecord script I've written to Accept.
[//Accept Request
if(input && input.action=="acceptApproval") {
var inRec1 = new GlideRecord('sysapproval_approver');
inRec1.addQuery('state', 'requested');
//inRec1.get('sys_id', current.sys_id);
inRec1.query();
if(inRec1.next()) {
inRec1.setValue('state', 'Approved');
inRec1.setValue('approver', gs.getUserID());
gs.addInfoMessage("Accept Approval Processed");
inRec1.update();
}
}][1]
I've research the web, tried using $sp.getParameter() as a work-around and no change.
I would really appreciate any help or insight on what I can do different to get script to work and filter the right records.
If I understand your question correctly, you are asking how to get the sysId of the sysapproval_approver record from the client-side in a widget.
Unless you have defined current elsewhere in your server script, current is undefined. Secondly, $sp.getParameter() is used to retrieve URL parameters. So unless you've included the sysId as a URL parameter, that will not get you what you are looking for.
One pattern that I've used is to pass an object to the client after the initial query that gets the list of requests.
When you're ready to send input to the server from the client, you can add relevant information to the input object. See the simplified example below. For the sake of brevity, the code below does not include error handling.
// Client-side function
approveRequest = function(sysId) {
$scope.server.get({
action: "requestApproval",
sysId: sysId
})
.then(function(response) {
console.log("Request approved");
});
};
// Server-side
var requestGr = new GlideRecord();
requestGr.addQuery("SOME_QUERY");
requestGr.query(); // Retrieve initial list of requests to display in the template
data.requests = []; // Add array of requests to data object to be passed to the client via the controller
while(requestsGr.next()) {
data.requests.push({
"number": requestsGr.getValue("number");
"state" : requestsGr.getValue("state");
"sysId" : requestsGr.getValue("sys_id");
});
}
if(input && input.action=="acceptApproval") {
var sysapprovalGr = new GlideRecord('sysapproval_approver');
if(sysapprovalGr.get(input.sysId)) {
sysapprovalGr.setValue('state', 'Approved');
sysapprovalGr.setValue('approver', gs.getUserID());
sysapprovalGr.update();
gs.addInfoMessage("Accept Approval Processed");
}
...
I have a xamarin form apps and I need it to consume an asmx web service. I encounter error when creating class in Android platform to implement the interface.
I have following this tutorial (https://www.c-sharpcorner.com/article/consuming-asmx-services-in-xamarin-forms/) to consume the asmx web service. I have this web method called "GetAllProjects" which will return List. I keep encounter error for the line of code:
"return new List(result);" (refer to the codes below).
Error message: Error CS1503 Argument 1: cannot convert from 'IMSr2.Droid.IMSWS.Project[]' to 'int'. How should I return the result from the web service?
public async Task<List<IProject>> GetAllProjects(string criteria = null)
{
return await Task.Run(() =>
{
var result = service.GetAllProjects();
return new List<IProject>(result);
/* How should I return the result from the web service?*/
});
}
/* This hello world is working*/
public Task<string> HelloWorld()
{
return Task.Run(() =>
{
return service.HelloWorld();
});
}
I am expecting the same result as the tutorial: https://www.c-sharpcorner.com/article/consuming-asmx-services-in-xamarin-forms/
I need to return the result from the webservice call ("GetAllProjects") and display in the listview.
Appreciate for help.
If you check the error statement correctly it says IMSr2.Droid.IMSWS.Project[]' to 'int' which clearly means that the method of your Service object by the name of getallprojects returns int
i.e.
service.GetAllProjects();
Is returning int when it should be returning Project[].
Check return type for GetAllProjects
I have an ASP.NET WebAPI Controller which creates a document in Azure DocumentDB from the data passed on to its POST method from a Console app. The return type of the POST method is HttpResponseMessage which returns a status code for OK (i.e. 200) when the document has been successfully created.
The document gets created successfully from the WebAPI and the status code 200 is returned too. But somewhere then it goes wrong (which I can't figure out where and why) and the status code that my Console app receives after the successful POST is 500 - an Internal Server Error occurred.
public HttpResponseMessage Post([FromBody]GPSDataVM data)
{
if (KeyRepository.IsValid(data.Key))
{
// Creates a document in DocumentDB by calling an async method CreateLiveDataDocument(data);
return new HttpResponseMessage(HttpStatusCode.OK);
}
return new HttpResponseMessage(HttpStatusCode.Unauthorized);
}
Can anyone help me out with the situation? Thanks in advance ..
I found an answer to my problem from the following address:
Web Api + HttpClient: An asynchronous module or handler completed while an asynchronous operation was still pending
I changed the definition to my WebAPI Controller to:
public **async Task<HttpResponseMessage>** Post([FromBody]GPSDataVM data) {
if (KeyRepository.IsValid(data.Key))
{
// Creates a document in DocumentDB by calling an async method
**// Code for CreateLiveDataDocument(data)**
return new HttpResponseMessage(HttpStatusCode.OK);
}
return new HttpResponseMessage(HttpStatusCode.Unauthorized); }
I have searched in this forum for quiet a bit and here's my problem -
I have a ng-repeat in my html which takes in a list of messages(Json object).
Each message JSON has a sender email address - e.g. abc#gmail.com
Now, I have to get the email address from the message and form another REST API request to fetch their images for e.g. - http://<>:8080/getImage/abc#gmail.com (email address dynamic)
So in my code, I'll have a ng-repeat and a ng-src pointing to the image REST URL
If there's no image in server, it returns a 404 and displays a broken image on the UI. How do I handle it? On the other hand, if I make a http request to determine if there's a success message and on failure return a default image, then the whole thing goes through an endless loop. I'll try to create a fiddle and include it for better explanation.
Use the error block to handle such behavior:
function($http) {
var restUrl = 'getImage/abc';
return {
fetchImage: function(imageId) {
var self = this;
return $http.get(restUrl + '/' + imageId).
success(function(data) {
return self.imageUrl = data;
}).
error(function(data) {
return self.imageUrl = "pathToDefaultImage";
});
},
...
I have a servicestack service which when called via the browser (restful) Url ex:http://localhost:1616/myproducts, it works fine.
The service method has RedisCaching enabled. So first time it hits the data repository and caches it for subsequent use.
My problem is when I try calling it from a c# client via Soap12ServiceClient. It returns the below error:
Error in line 1 position 183. Expecting element '<target response>'
from namespace 'http://schemas.datacontract.org/2004/07/<target namespace>'..
Encountered 'Element' with name 'base64Binary',
namespace 'http://schemas.microsoft.com/2003/10/Serialization/'.
Below is my Client code:
var endpointURI = "http://mydevelopmentapi.serverhostingservices.com:1616/";
using (IServiceClient client = new Soap12ServiceClient(endpointURI))
{
var request = new ProductRequest { Param1 = "xy23432"};
client.Send<ProductResponse>(request);
}
It seems that the soapwsdl used is giving the problem, but I appear to have used the defaults as generated by servicestack..
Any help will be much appreciated.
Update
I was able over come this error by changing the cache code at the service end:
Code that returned error at client end:
return RequestContext.ToOptimizedResultUsingCache(this.CacheClient, cacheKey,
() =>
new ProductResponse(){CreateDate = DateTime.UtcNow,
products = new productRepository().Getproducts(request)
});
Code that works now:
var result = this.CacheClient.Get<ProductResponse>(cacheKey);
if (result == null)
{
this.CacheClient.Set<ProductResponse>(cacheKey, productResult);
result = productResult;
}
return result;
But I am still curious to know why the first method (RequestContext.ToOptimizedResultUsingCache) returned error at c# client?
But I am still curious to know why the first method (RequestContext.ToOptimizedResultUsingCache) returned error at c# client?
From what I can tell, the ToOptimizedResultUsingCache is trying to pull a specific format (xml, html, json, etc) out of the cache based on the RequestContext's ResponseContentType (see code here and here). When using the Soap12ServiceClient the ResponseContentType is text/html (not sure if this is correct/intentional within ServiceStack). So what ToOptimizedResultUsingCache is pulling out of the cache is a string of html. The html string is being returned to the Soap12ServiceClient and causing an exception.
By pulling directly out of the cache you are bypassing ToOptimizedResultUsingCache's 'format check' and returning something the Soap12ServiceClient can handle.
** If you are using Redis and creating your key with UrnId.Create method you should see a key like urn:ProductResponse:{yourkey}.html
Thanks for your response paaschpa.
I revisited the code and I was able to fix it. Since your response gave me the direction, I have accepted your answer. Below is my fix.
I moved the return statement from RequestContext to the response DTO.
Code which throws error when used via c# client (code was returning entire requestcontext):
return RequestContext.ToOptimizedResultUsingCache(this.CacheClient, cacheKey,
() =>
new ProductResponse(){CreateDate = DateTime.UtcNow,
products = new productRepository().Getproducts(request)
});
Fixed Code (return moved to response DTO):
RequestContext.ToOptimizedResultUsingCache(this.CacheClient, cacheKey,
() => {
return new ProductResponse(){CreateDate = DateTime.UtcNow,
products = new productRepository().Getproducts(request)
}
});