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#REST API

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Representational state transfer (REST) is a software architectural style that defines a set of constraints to be used for creating Web services. Web services that conform to the REST architectural style, called RESTful Web services (RWS), provide interoperability between computer systems on the Internet. RESTful Web services allow the requesting systems to access and manipulate textual representations of Web resources by using a uniform and predefined set of stateless operations. Other kinds of Web services, such as SOAP Web services, expose their own arbitrary sets of operations.

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Question
· Nov 6, 2017
Logging

Hello, evrybody, I'm writing one project using CSP("OnPreHTTP"), and also REST angular. At the beginning I wrote purely on csp, then I decided to use angular for the flexibility of the client part. Now I can not design logging, I created a table App.Log with properties

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In my production I receive an XLFO stream and I would like to pass that to the FOP pdf rendering engine to produce pdf files .So far in my research that can be achieved through ZEN .I would like to create an operation that will take advantage of that and be able to pass my XLFO stream to the operation and create pdf files I found something similar here but for some reasons I get errors like below if any one understands what they mean please advice or someone who had to do something sim

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Question
· Feb 20, 2019
Extend XData UrlMap

Hi all,

I'm wondering if is possible to extend the UrlMap.

I want to create a base class and one method will be in all extended classes, so I've tried to create the map route in parent class, and the specific methods in extended class. But it doesn't work.

I've create the method in parent class and I've wrote the map in extended class. It works, but I want to put it in base class to prevent forget this call.

Note: The base class extend to %CSP.RES

Best regards,

Francisco Lopez

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I was trying to modify the REST.DocServer sample in the SAMPLE namespaces to use the new %Object and %Array system objects (Ensemble 2016.2 build 636) with the following changes:

/// This method returns a list of namespaces for this server

ClassMethod GetNamespaces() As %Status

{

#dim tSC As %Status = $$$OK

#dim tList,tNS,tFilteredList,tValue As %String

#; Get the list of namespaces

Do List^%SYS.NAMESPACE(.tList)

Set tNS="" For {

Set tNS=$Order(tList(tNS),1,tValue) If tNS="" Quit

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Hello,

I am trying to find out if it is possible to decode the Azure access token in IRIS. Has anyone ever tried this before? I need to decode the token to extract the "Scope" details in order to verify the scope to make sure client is permitted to do the request they have done.

If you could point me to any information, that'd be great.

Thank you.

Utsavi

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Does developing a RESTful API in Caché remove the requirement to use the InterSystems.Data.CacheClient.dll and generate proxy classes using the Caché Object Binding Wizard for .NET web development? If anyone has links to sample applications using .NET with Caché and REST Services, I would be grateful if you could share them.

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Question
· Apr 5, 2019
REST and CSP Sessions

Hi!

We are using Rest Service with inheritance of %CSP.Rest, and we are having the following problem: when we receive 100 request from single IP adress - this creates 100 CSP sessions and takes 100 user licence for each request for few seconds. What can we do do about this? We've set this parameter:

Parameter UseSession As Integer = 1;

Thank you in advance!

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Hello All,

I am compiling a REST Operation to call our hospital Administration system, following tutorials around the REST API's etc. First time we have integrated like this so not much knowledge around our hospital - hoping someone on here can help.

I have been using the JSONStreamToObject Method which is working as i expected, apart from trying to get a specific item in the example JSON Response as follows:

{"test":"abc","name":[{"use":"usual","family":"Matest","given":["Mia"]}]}

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Hi,

we have Angular solution and Cache server. We need to have separate users and sessions on same browser (laptop, table etc) for every user and for one user with many connections.

Thought this was resolved, but unfortunately not.

-----------------------------------------------------------------------------------------------------------------------

I got the code away from here, because it was some how ok.

The session on server mixed, but no any more, thanks our folk and local engineer's tools :)

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I'm currently re-engineering an application from CSP pages directly accessing COS Methods, to an Angular/Material front end accessing a REST DAL. Both the Angular front end and REST services are hosted from the same Caché instance and the same namespace, but the REST services have their own CSP application, with all calls being routed through a Dispatch class.

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I have a vendor that is sending an HL7 message. But when I asked for more detail about their mapping tables, they told me they typically don't supply that but supply an API for customers to call so they don't have to define tables and it is more dynamic.

So with that being said I am creating my first REST operation. I understand the gist of how a REST operation works in working with other types out Non HL7 Operations (SOAP, SQL) before. You send a request and get a response back, that part I understand.

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Question
· Nov 19, 2018
JSON Syntax

Hi,

I'm using InterSystem Cache v2015.2.5 and I'm implementing a REST API and returning JSON.

Following the documentation I see examples like this

Set obj = {"destinations": ["London","Madrid","Tokyo"]}
Write obj.%ToJSON()

However, I have a compilation error

ERROR #1054: Invalid expression : '{"destinations":'

Is there something that needs to be enabled on Studio to allow this syntax?

Thank you,

Rui

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Hello Everyone,

We are currently in process of implementing REST APIs using IRIS and we are also looking at using Intersystems API Manager.

Our aim is to implement a Microservices Architechture where Services are small in size, bounded by contexts, autonomously developed, and independently deployable.

We are following a spec first approach where we are first defining the API specs into Swagger Hub and using IRIS API Management Service to build the REST classes i.e. the Specification class, Dispatch class and Implementation Class.

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Hi All,

I am trying to get JSON data from a REST api. I am using my web browser to get the data by hitting the URL.

The data is receiving properly, but the JSON contains a few HTML tags.

These tags are not not receiving in the browser while hitting the url. Is there any way to overcome this issue ?

Thanks,

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Hi

I have been experimenting with the creation of a set of REST services for an app. The basic GET operation is set to create a %ZEN.proxyObject instance, and then set an instance of a Persistant class as a property, which gives me all of the values I want to return. However, it also gives me some values that I don't want to return over REST (because they are both private, and large registered objects which will bog down performance)

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Hi,

So I am a front end developer working with REST API with Cache database on the BE. The BE guys are currently using Cache through a Windows virtual machine and they claim it is not possible to have a development server to work with. All the work they are doing is directly on the production server and changes are immediate and I think this is a bad idea going forward and we most definitely need a development server that has access to the same code base and different version (through git) to be able to do development. We also do all the testing on this production server with test accounts, but we cannot do automated testing with this setup.

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