I am trying to communicatie with a webapplication through its SOAP service. Now in the C# code I can create a client and login, get a session id. All is well. Upon constructing this client I could have provided a binding. I am trying to read on MSDN what the binding is good for, and I feel like I am getting flooded with all technical terms that are new for me. Is it binding like data binding to a view , to automate updating things when the datasource changes? Does the binding allow the server to call the client as well? And if the binding is specified, what are its benefits and how do I use it? Can someone give a real world example of what is possible with a binding and not possible without a binding?
Related
I need to set up an application in Azure and make communicate 2 functions (one written in C# and one written in JavaScript).
The C# fragment consists in analyzing a XML feed, get the data and save in objects then finally send them to the other JavaScript function by parameter.
I did read that we could establish communication between both functions using HTTP calls but is it possible to do it with parameters ?
If not, would have any suggestions in order to achieve something like this properly? I'm getting started with Azure and i don't have enough visibility to know what is recommened in such a situation
Thank you for your advices
Yes, this is absolutely possible. How you do this is up to you. If you look at the default HTTP trigger templates, you can see that they take parameters (for example, as query string parameters). You can find more examples in the HTTP and webhook recipes documentation.
You can use other trigger types for cross-function communication as well. Take a look at this documentation for related best practices: https://learn.microsoft.com/en-us/azure/azure-functions/functions-best-practices#cross-function-communication
I am very new to Salesforce and it's API.
I am having a sandbox org and with it I have url, username, password, security token and last but not the least partner.wsdl
My aim was to connect and retrieve/create data.
Technologies at hand was nodejs
So here is how I started.
I searched over the internet and came to know that I need to create a client, SOAP client in order to login, create the connection and use that connection to create and access the Leads data.So I followed this sample where the wsdl was being consumed.
So I was able to connect
I was very happy on this success and then suddenly I wasn't able to identify/find a way where I can get the sObject.I looked hard for this but no luck. So posted a question on SO
Meanwhile I also looked for other node module and found jsforce
I used jsforce starting guide and created a client that was connecting to salesforce however without using the wsdl file.
Again I was happy, even more happy because I was having the sObject with me.
Now, what is the fundamental difference if I login using the local wsdl file and without wsdl file in the language of salesforce. Which one is the correct way of logging in?
Sorry if this question is not according to SO rules or if there is a typo.
I'm the author of jsforce you mentioned.
In that lib we use REST API mostly and SOAP APIs are only used in some specific calls like login or metadata. Even in such calls we don't use WSDLs because there's no good lib to generate client modules from WSDL in JavaScript/Node.js area. Instead we wrote modules for each APIs which generate SOAP XML strings and parse the response XML.
It is enough because these API message schema are static and fiesible in the specific version, unlike SOAP API Enterprise WSDL differs in organizations. So we can hard code the client module directly w/o generate it from WSDL.
I read in an article that odata can be used for different combination of clients/servers.
Say I would like to develop a web application where i store data(say information about all mobile products on market) using mongoDB and use python as backend with Bottle framework to access data through browser as GET.
Then i decide to extend web app as android app. i can extend it to android without any code change on server side.
My doubt is does using odata here helps in any way? Say if i want to extend it to other clients?
Yes, you are right, you don't need to change even a single line of code on the server side if you change a client app. OData defines many conventions for the communications between the client and the server. such as:
What the URL looks like if you want to query some data
http://services.odata.org/V4/OData/OData.svc/Products?$filter=ID gt 2&$select=ID,Name,Rating,Price&$orderby=Price desc
Which http method should be used to Create/Retrieve/Update/Delete an entity
Generally speaking, Post for Create, Get for Retrieve, Patch/Put for Update, Delete for Delete.
What the payload looks like.
How to invoke a function/action
As long as the requests conform to these conventions, the server side always returns the predictable responsese regardless whether the clients is a browser or a mobile device.
I also find the examples for the odata:
https://aspnet.codeplex.com/SourceControl/latest#Samples/WebApi/OData/v4/ .
Hope this helps you.
We have a working website using ServiceStack as the back end that amounts to a complex data-entry form.
My users have requested an "offline editor" for the forms. To use the offline program, the user will have to connect to the ServiceStack service, create empty instances of the forms, and then I will save the POCOs from the service to disk using ServiceStack's JSON serializer. From there the user can log off the service and edit the POCOs. When they're done, they reconnect to the service, and post/put the edited POCO object.
This all works great. My question involves validation. The validation logic is built into my Service.Interface library, which isn't available offline. The winforms program references only the POCO library and the ServiceStack "common" libraries, which do not look like they include the ServiceStack.Validation namespace.
Is there a way I can rearrange my project so that both the service and the Winforms client can run Validation against the POCOs, so that they can have data validation while offline?
UPDATE:
getting closer, I think - I moved all of the Validation classes into their own project. From my Winforms project, I can now manually set up a validator for a POCO class like this:
ServiceStack.FluentValidation.IValidator<SomePOCO> IValidator;
IValidator = new Tonto.Svc.Validation.SomePOCOValidator();
ServiceStack.FluentValidation.Results.ValidationResult vr =
IValidator.Validate(_rpt);
I can see the validator constructor being set up and the rules being initialized, but the .Validate method doesn't seem to do anything. (object comes back as valid, and breakpoints into custom validator code never get there).
UPDATE #2
I discovered my validator code wasn't running from Winforms because my validators all specify a servicestack ApplyTo Put/Post only (see sample code below). When I remove the entire Ruleset clause, though, then validation happens in my service on GETs - something I never want.
Can anyone think of a way to configure the validator rules to run for POST/PUT only when called from ServiceStack, but to also always run when NOT in servicestack? So close!
public class SomePOCOValidator : AbstractValidator<SomePOCO>
{
public SomePOCO()
{
RuleSet(ApplyTo.Put | ApplyTo.Post, () =>
{
(rules)
});
}
}
If your validation is doing anything interesting, then it probably HAS to be done "online".
Maybe just allow your client to save the POCOs locally until they go back online, at which point you send them up to your server. Any transactions that are okay, get processed normally, and any that fail, get returned for the user to edit (so your client will need some smarts to have a working set of POCOs for editing)...
If you don't want ANY extra stuff on the client, just have the transactions that fail to validate get stuffed into a "needs_corrections" table on the server, and then code up a supervisor-sort of screen to manage that table.
The validation framework that ServiceStack uses is named FluentValidation. There is no WinForms support in it. Jeremy Skinner the creator of FluentValidation answerd a question about this back in 2010 on his forum here.
Personally I don't use FV with WinForms - the vast majority of my projects are web-based with the occasional WPF project.
However, if I was going to do this then I probably wouldn't validate the controls directly, but instead use a ViewModel which is bound to the controls. I'd use a fairly strict convention where the names of the controls would match the names of the properties that they're bound to. Then, after validation completes I'd walk the control hierarchy to find the control with the name that matches the property that failed validation (I'm not sure how you'd do this in WinForms, but in WPF I'd use LogicalTreeHelper.FindLogicalNode) and then use the ErrorProvider to set the appropriate error.
Jeremy
I was able to work out a solution that allowed me to use ServiceStack validation libraries on both a ServiceStack client and an offline client. Here are the details.
Move all AbstractValidators to their own project: Proj.Svc.Validation.
get rid of all RuleSets in your AbstractValidators.
Reference Proj.Svc.Validation from Proj.Svc.Interface and Proj.OfflineWinformsClient projects.
Turn OFF the ValidationFeature() plugin in your service. All validation will have to be done manually. This means no iOC injected validators in your service classes.
When it's time to validate, either from your service or the offline client, manually declare the validator and use it like this.
IValidator validator = new
Tonto.Svc.Validation.SomePOCOValidator();
ServiceStack.FluentValidation.Results.ValidationResult vr =
validator.Validate(poco);
if (!vr.IsValid)
(throw exception or notify user somehow);
I have a custom HTTP server written in C# that provides specialized application services in my application domain, such as rendering a dashboard with graphing. I am not using IIS; the server is completely written in C# using the HttpListener class to bind directly to the port(s) that it serves.
I would like to use ServiceStack to add in a RESTful API for pulling data to browser-side code to improve the user experience, using the same web server (so it can bind to the same HTTPS port, and share my security module).
All of the example code on the web that I have found assumes either that IIS owns the web port, or that Service Stack owns the web port. In my use case, my custom application owns the web port, and wants to delegate certain HTTP requests to Service Stack.
Is there a simple way to pass off a single HttpListenerContext off to Service Stack to handle? I could not find documentation examples using google, since all of the key words seem to be too common.
In the context of my custom code, I will have already evaluated the URL, determined that the user has permission to access it, and just need to have HttpListenerResponse generated.
Simple sample code or a pointer to a web article would be fantastic.
We've never tested doing this before, but the AppHostHttpListenerBase.ProcessRequest entry point accepts a HttpListenerContext.
You would still need to call new AppHost().Init() but you shouldn't need to start it.