#JSON

17

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write.

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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Hello! I have a question how to parse Library.ListOfObjects to JSON

I send post data like this from client using rest and want parse "templates", after save "codeForm","codeName" in database

{
    "whoIs": "",
    "templates": [{
            "codeForm": "FORM_FIOGROUP",
            "codeName": "operationDate",
            "orderNumber": "1",
            "codeFormat": "YYYY-MM-DD",
            "header": "DATE",
            "dbfFormatType": "Date",
            "dbfFormatLength": "8",
            "valueFrom": "Payment"
        }, {
            "codeForm": "FORM_FIOGROUP",
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Hello

I am creating an import tool to convert a client's JSON data into IRIS classes.   The sample file is over half a gig.   I am copying the data into an instance of %Stream.FileCharacter;.    My first few attempts worked fine.   However I started getting an error thrown when I try to create a DynamicAbstractObject using the  %FromJSON method.     See the code below.   The error code given is not in the documentation, at least not the doc that I was searching.   

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I had a challenge recently where I was asked to parse and iterate JSON to find a patient that has a forename = "Bill" and try to make the function that iterates through the code re-usable.

Being working in Healthcare there isn't much experience or demand for parsing JSON, as most of my work is HL7.

I took this on using the documentation and worked out a way to parse the JSON (see posts below for code and source data).

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Question
Mike Yackanich · Jan 11, 2021
How to use HS.JSON.Path

Has anyone used the ##class(HS.JSON.Path).%Evaluate() classmethod interrogate JSON and return a specific object value? I need to extract the MessageHeader.destination.endpoint value from a FHIR bundle and can't seem to get that XPath-like method to work.

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Hello,

We are working with a vendor who only accepts JSON as payload. We are currently still on Cache/HealthShare, not IRIS. Since we have to send Continuity of Care Documents, this raises issues with Long Strings (some CCDs can be quite large and in addition to that, they have to be b64-encoded which increases their size even more).

My question is: if we were to go on IRIS and use %JSON.Adapter, storing the encoded Stream in an object's Stream property, would calling %JSONExport() on this object produce the desired JSON? Or would we have to call %JSONExportToStream()?

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What is the best way to create an HL7 message from JSON input file?

We have JSON file available with data required for building the HL7 message . I am trying to use a standard file/FTP Business service to pick up the file and convert the input %FileCharacterStream into a dynamic Object and use the stand JSON features to read /process the data and build the HL7 message. 

Is there any other better way to do this? or any standard built-in functionality available in HealthShare? 

Thanks you for your help

Mary

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Question
Sabit Issakhan · Nov 26, 2020
Set null

Hello! 

How to set null in variable? 

I need to create JSON like below:

{

"id":"1",

"Code": null

}

 

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Hey Intersystems Community,

I have a Problem with the Session Handling in .csp.

I wrote all my Web Services in .csp-Pages and do the work for example in the OnPreHttp Method for to get some data.

After that the Web Service response is in JSON.

I call These Web Services via fetch in my react Single Page application, also Many request parallel. The react App is Rolled out as index.html.
Everything Works Fine with the session Handling via Cookie.

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Doing a new project with %JSON.Adaptor, unexpectedly realized that %JSON.Adaptor does not support export to native JSON. %JSONExport just outputs directly to the current device, and there are two more methods %JSONExportToString, and %JSONExportToStream.

In conjunction with generating REST from swagger specification, where any generated method accepts as a result %DynamicObject, which is good. 

I have multiple places in my REST where I have to return JSON for an object, but I have to modify the result a bit, just extend it with some other way.

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Hello Intersystems-Community,

I build an API and there I use $order to get the Data from my Globals.
When I first time use that API it's get an error (504 Gateway-Timout > 60 Sec.).

After 2 reloads it works with a loading time of 2 Sec.! Sounds for me like the $order is cached and it works faster. Is it true $order will be cached?

When it works, I only get the error at the next day. So it's very hard to reproduce that error. Is it possible to delete the cache for $order?

Example:

 

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Hi,

How do I generate JSON strings instead of integers, as follows:

{ "MyProperty":"1"}

all we seem to be able to generate is 

{ "MyProperty":1}

Its for an api that requires the former and as the former is valid JSON I'm surprised I am having so much trouble.

(Obviously I'm new, please be kind :D

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Hi everyone,

when I'm using the %JSONExport-function on Caché-Objects containing properties of type %integer, %numeric or %boolean, this properties are all automatically converted to Strings in the JSON-Output.

Is there a way to get around this type-cast?

Example:

Result with %JSONExport:

maxOrderable and maxReserveable are of type %integer, deliverable and assembly of type %boolean. All 4 properties are shown as quoted Strings.

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Running Cache 2017.2.2.

I'm trying to make a REST API call in JSON format. When using the example in the class reference documentation the getJSON method in the %Net.Http class throws the error  <METHOD DOES NOT EXIST> on a %Clone() method in the %LIbrary.DynamicObject class. I even changed the parameter to a JSON string to no avail. The  code will then fail on the %Compose method (examples below). My workaround is to use the %Net.HttpRequest functionality. Is there another workaround to this?

 

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Say I have an ObjectScript object called Book. It has 2 properties title and author. It extends JSON.%Adaptor, so I can call book.%JSONExport() and get this output:

{ "title": "For Whom the Bell Tolls", "author": "Hemmingway" }

In my web service I want to have a search function that returns an array of Books along with the total number of responses, like this: 

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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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Okay, we've got a quite useful way to very easily Import and export our objects as JSON, similar to what we already had before for XML.

So, It's a %JSON.Adaptor. But the issue here I faced with, working with Stream properties. 

I have an example, when I generate an object, with stream binary stream properties. Export and Import the same, but getting the different resulting objects, depends on the original size of streams.

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Hey Community,

my Caché Version is 2013.1 and I can't update now.

I want to serialize a SQL Answer row into an Array filled with objects and then convert it to json.

Actually I use the following, which is very error prone when I have to do that often:

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Hi, 

I know there are several alternatives, but I would like to find the easiest & simpler ones to store data coming in Json format from post requests and also allowing me to do SQL queries. 

I want to have a property called favouriteColors. I want to store a few colors, and I want to be able to do queries to get top favorite colors, etc... so not handling the list of colors as just a fixed string or fixed object. 

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Hello Community,

My Intersystems Caché Version: 1.2014 (Can't update now.)

I have the following issue:

I have for example an articlenumber with 15049950, which is numeric. But sometimes it can also be an alphanumeric string like PK15049950.

How can i set numbers always to string in Json Stream with quotes like "15049950".

Code Example:

set object = ##class(%ZEN.proxyObject).%New()

set articlenumber = "15049950"

set object.articlenumber = articlenumber

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I need to convert an array with an unknown number of indices to a JSON string for transmission (which is why it isn't possible to iterate through it using $ORDER). Does ObjectScript provide functionality to convert an array to a JSON string?

 

Edit 1: As Joel mentioned, the array is subscripted and has an arbitrary structure like:

a(1)="a"
a(3,4)="b"
a(3,6)="c"
a(5,6,7)="d"

which needs to be converted to

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