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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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Hello Guys,

Our cache application uses REST web services and handles single API request perfectly with response (response status and related data). But sometimes user sends multiple requests to the same API simultaneously ( ie, without waiting for the first to respond ), where one request will succeed (not necessarily the first) and the others will fail.

So, I need to handle the requests one by one after completing and sending the response for first request in the queue then process the next request and so on.

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Hi Developers,

Join us at the upcoming Developer Roundtable on March 26th at 11 am ET | 4 pm CET. 📍
We will have 2 topics covered by the invited experts and open discussion as always!

Talks:

➡ Demo on Documenting and Testing REST Call's by generating documentation and making scenario's for integration tests - presented by @Danny Wijnschenk , Application Developer, Winfo.

Danny is an independent developer based in Belgium, specialized in InterSystems Caché and IRIS. He has customers in both the healthcare and non-healthcare sectors.

➡ Cypress for web application testing - presented by @Pravin Barton , Senior Applications Developer, InterSystems

▶ Update: watch the recording of the roundtable below.

https://www.youtube.com/embed/2NeWf-Y8Cuk
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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Good morning:


Thank you very much for reading the doubt and above all thank you very much for answering.

Given the following use case:

If we have a Destination Service that through a HTTP GET by REST gives us a certain JSON response, where it should be noted that it is a list of objects where each object in the list does NOT have a key:

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I built my rest api with ^%REST and update with CreateApplication.
Postman works fine and I suppose production server will work fine as UI and rest api will be on the same domain, but for now in dev, I need to have access from my local to the Iris rest api. I have a CORS error.

I do not know how to configure my swagger file to have either Parameter HandleCorsRequest=1 or <route Cors=true in the generated displ,cls.

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Hello,

I have a problem with a FHIR Interop scenario that the HTTP Header Value content-type between IRIS and client changes in case of an error (HTTP 422). If I set the status in the response to 200 OK as the last step in the service class, the return transmission works.

Within my operation class, the error code is taken from the source system and entered in the HS.FHIRServer.Interop.Response message.

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Hi all,

As you know, it is very complicated to debug a Business Service Rest API because the object is created when the applications receive a request, so we cannot have the JobId that we can use to debug.

https://docs.intersystems.com/iris20211/csp/docbook/DocBook.UI.Page.cls?...

So, I'm trying to get the JobId when the class is being created, write a trace in OnInit() method and write the JobId in a log info

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Hi,
How can I get an instance of stream which is a successor of %Stream.Object in a method that handles a REST POST request?

#dim request as %CSP.Request = %request
 set content = request.Content

This returns a variable of type %CSP.Stream which is totally useless, because %CSP.Stream does not inherit from %Stream.Object

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Hello everyone,

I am looking for a sort of REST interoperability adapter that can forward REST calls within HealthConnect. If necessary, we need to adjust the requests or responses.

For Fhir calls, we use the FHIR Interoperability Adapter. This works perfectly; a message comes in as HS.FHIRServer.Interop.Request, and a message HS.FHIRServer.Interop.Response goes out. I can make adjustments as needed to both the request and response. I am looking for the same functionality, but then for non-FHIR REST calls.

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I am trying to use postman to start the restapi classes from a json openapi2.0.0 file.

POST: https://myserver.com/api/mgmnt/v2/requestAPI. The body contains the openapi2.0.0. The application api/mgmnt has in security settings: password. JWT is not selected. I set postman authentication to basis authentication and gave username and password. I also set in headers IRISUsername and IRISPassword. I have 401 Unauthorized.

Is the only way to go through is to build an oauth token? or do I miss something?

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I am making a POST request to an API. In the case of an error, I don't know what parameters the response JSON will contain (they will change depending on the error). I am converting the response stream to an object but then I need a way to loop through all the properties and access their values. The following code is making the POST request, reading the response, and trying to add all the error messages to an array. But I can't iterate over the properties of the tProxy.errors object because it is a %ZEN.proxyObject. Is there a better way to do this?

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I am trying to call to a website that renders a xml structure as a response.if I put the url on the browser an xml rendered page is returned but if i call to this using the below code I get an object reference error which I am finding had to understand is there anyone who could help understand this error or point me in the right direction thanks.

Set tSC=$$$OK

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I have tried many methods from super classes of %CSP.REST but I can't find a method I can override that will run after the %response object is created so I can set a header that is common to each implementation method. It's one line of code in each method to set the header but it would like to make it super easy, simple and just have a method that runs on, before, after the implementation method to set this common header (we want to return the API version in each responses HTTP headers.

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Hi,

I am trying to connect to another server using %Net.HttpRequest.

I keep getting this error : SSL23_GET_SERVER_HELLO:unsupported protocol.

My guess is that the site I am reaching for uses TLS1.3 which is not supported in 2016, But I cant right now ask my client to upgrade.

Is it possible to override this ? install some kind of a patch or a more recent version of openssl on the server ?

Thanks

Amiram

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I have a message class define. But sometimes the RelatedItems fields is not returned.

Parameter %JSONIGNOREINVALIDFIELD As BOOLEAN = 1;

Property RequestedTerm As AH.AHLIB.Custom.Symedical.Message.PostRelationResponse.termsRequested;

Property RelatedItems As list Of AH.AHLIB.Custom.Symedical.Message.PostRelationResponse.RelatedItems;

Respnse normally will return someting like this,

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InterSystems FAQ rubric

The meaning of each timeout value is as follows.

1. [Server response timeout]

If IRIS/Caché processing (routine or query execution) does not finish within this set time, the browser will return an error.

For example, if this value is 60 seconds and it takes 90 seconds to execute a routine/method/query, an error will occur.

2. [Queued request timeout]

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Article
· Jun 29, 2023 3m read
IRIS Api Tester

Hello Community!!

I just upload my lastest application "IRIS Api Tester" to the Open Exchange.

It's a docker project with InterSystems IRIS + Newman that will allow you to test your Postman Collections in a quick and easy way..

It's ready to work out of the box, you just have to clone the repo: https://github.com/daniel-aguilar-garcia/irisapitester

Run the docker-compose file:

Open Exchange app
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Trying my first REST call operation to our internal EMR (Epic) server, and I am receiving "ERROR #6097: Error '<READ>Read+28^%Net.HttpRequest.1' while using TCP/IP device '9999'" when I attempt to test my operation. When I look up the General Error Messages for 6097 I am seeing...Error '%1' while using TCP/IP device $zu(189,1)='%2'. What does this mean?

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