Develop Reference

Postman scripting: how to refrence a json node with web address for a name

I'm currently working with a bearer token I need to get some data out of to continue a user journey. I found the following code that does the decoding for me
var jsonData = JSON.parse(responseBody);
const payload = jsonData.Result.AccessToken.split('.')[1]; // Assuming the JWT is in id_token
const parsed = JSON.parse(atob(payload));
It uses atob sandboxed script to decode base 64 encoded payload, when decoded the payload looks a little like this:
{
"http://mytestsite.uk/roles": [
"user"
],
"http://mytestsite.uk/id": "8d2c3de9-4fa2-a58e-68109d977",
"http://mytestsite.uk/email": "tst3#mytestsite.uk",
"sub": "500b416c8942bb0069b98a3c",
"aud": "api.tst.mytestsite.uk",
"iat": 1615544685,
"exp": 1615631085
}
Normally, I would reference the payload body item I want (e.g. sub) like so:
pm.environment.set('sub', parsed.sub);
However, I want to reference "http://mytestsite.uk/id" and am uncertain how to do it.
parsed.http://mytestsite.uk/id
The above causes the script to error and I can't encode it, as that doesn't remove the dots, I obviously can't pass it as a string - I guess I'm unclear on how to correctly pass this name to reference the JSON object correctly.

You should be able to reference it this way:
pm.environment.set('id', parsed['http://mytestsite.uk/id'])

API Connect - 500 error when including basic Javascript

I'm trying some basic API Connect tutorials on IBM's platform (running locally using loopback) and have got completely stuck at an early point.
I've built a basic API service with some in-memory data and setter / getter functions. I've then built a separate API which takes two GET parameters and uses one of my getter functions to perform a search based on two criteria. When I run it, I successfully get a response with the following JSON object:
[{"itemId":1,"charge":9,"itemSize":2,"id":2}]
I've then tried to add a piece of server logic that modifies the response data - at this point, I'm just trying to add an extra field. I've added a Javascript component in the Assemble view and included the following code (taken from a tutorial), which I thought should modify the message body returned by the API while still passing it through:
//APIC: get the payload
var json = apim.getvariable('message.body');
//console.error("json %s", JSON.stringify(json));
//same: code to inject new attribute
json.platform = 'Powered by IBM API Connect';
//APIC: set the payload
//message.body = json;
apim.setvariable('message.body', json);
Instead of getting an extra JSON parameter ("platform"), all I get is a 500 error when I call the service. I'm guessing that I'm doing something fundamentally wrong, but all the docs suggest these are the right variable names to use.

You can't access json.platform but at that point json variable is json type. Are you sure that you can add a property to a json type variable if your json object lacks of that property? I mean: What if you first parse the json variable of json type to a normal object, then add new property, and finally stringify to json type again for body assigning purposes?
var json = JSON.parse(apim.getvariable('message.body')); //convert to normal object
json.platform = 'Powered by IBM API Connect'; //add new property
apim.setvariable('message.body', JSON.stringify(json)); //convert to json again before setting as body value

You need to get the context in some determined format, and in this function do your logic. For example if your message is in json you need to do:
apim.readInputAsJSON(function (error, json) {
if (error)
{
// handle error
apim.error('MyError', 500, 'Internal Error', 'Some error message');
}
else
{
//APIC: get the payload
var json = apim.getvariable('message.body');
//console.error("json %s", JSON.stringify(json));
if(json){
//same: code to inject new attribute
json.platform = 'Powered by IBM API Connect';
//APIC: set the payload
//message.body = json;
apim.setvariable('message.body', json);
}
}
});
Reference:
IBM Reference

You have the message.body empty, put a invoke/proxy policy before your gateway/javascript policy for example.

How Do I See the Output of Changes to JSON

Updated to try to be more clear given the comments (Thank you for comments)
I apologize in advance for this question. I may just not have the vocabulary to properly research it. If I have an array of objects called restaurants stored in my project, for example:
restaurants: [
{
"name": "joes's pizza",
"url": "joespizza.com",
"social properties": {
"Facebook":"fb.com/pizza",
"Instagram":"instagram.com/pizza",
"googlePlus":"pizza+",
"Twitter":"twitter.com/pizza"
}
},
{
"name": "tony's subs",
"url": "tonys.com",
"social properties": {
"Facebook":"fb.com/subs",
"Instagram":"instagram.com/subs",
"googlePlus":"subs+",
"Twitter":"twitter.com/subs"
}
},
{....}
]
I then run a function to add a unique idea to all the objects in the array. The result of console.log(restaurants) is this:
{
"id": 3472,
"name": "joes's pizza",
"url": "joespizza.com",
"social properties": {
"Facebook":"fb.com/pizza",
"Instagram":"instagram.com/pizza",
"googlePlus":"pizza+",
"Twitter":"twitter.com/pizza"
}
},
{
"id": 9987,
"name": "tony's subs",
"url": "tonys.com",
"social properties": {
"Facebook":"fb.com/subs",
"Instagram":"instagram.com/subs",
"googlePlus":"subs+",
"Twitter":"twitter.com/subs"
}
},
{....}
]
I would now like to have this updated array of objects available to look at in my project, via the text editor, as a variable or restaurants.json file. How do I actually see the new modified json array and how do i save it so that i can work with it the same way i did this one above? I am currently doing this in the browser. I can see the results if i log it to the console but I need to be able to work with the new output. Thanks for taking the time to answer.

You can encode/decode JSON with JSON.stringify() and JSON.parse().
Aside from converting to/from JSON, you work with standard JS objects and arrays:
var array = JSON.parse(json_str);
array[0].address = "5th Avenue";
console.log(JSON.stringify(array));

Well, there's really not enough information in your question but I assume a few things:
You've loaded the json data from somewhere and it has been turned into a javascript object.
You've edited the object somehow and wish to convert it back to json and save the changes.
Assuming the above to be true, you just need to serialize the object back to json and submit it back to your server where you can save it in any manner you deem appropriate.
You can serialize the javascript object with JSON.stringify() (see https://stackoverflow.com/a/912247/4424504)
Add the serialized json to a hidden field on the form and submit it.
On the server when processing the form submission, grab the data from the hidden field and do with it what you wish.
Or get it back to the server any way you wish (ajax call, whatever) the key point is to serialize the object to a json string and save it
Hope that helps...

How to parse Rest Api json response and insert data to Jade template (Node.js + express)?

So, i need to parse json response in node.js + express and insert data to jade file. I do this in Sinatra, that was easy, but here..
Response format like:
{
"status": "200",
"name": "",
"port": "7777",
"playercount": "4",
"players": "name, of, player"
}

Express's res.render() method allows you to pass in local template variables, and use them in your template. For example:
app.route('/', function (req, res) {
// Your code to get the response, and for example's sake, I'll say it's assigned to 'view_data'.
if (typeof view_data === 'string') {
// If you know for sure if your data is going to be an object or a string,
// you can leave the if statement out, and instead just parse it (or not if
// it's already an object.
view_data = JSON.parse(view_data);
}
res.render('template', view_data);
});
And within template.jade
h1 This is #{name}
pre= status
p #{playercount} players online
The data can be any JSON object, so if you have the response returned as text, you can use JSON.parse() to turn it into a JSON object.

extract specific part of API response to JSON object in Javascript

I am trying to interrogate an API response from the Recognize (fashion recognition) API. The data is returned as set out below. I am trying to extract the items of attire from the following object.
Object {data: " Array↵(↵ [id] => 1309↵)↵{"Status":true,"Data":{"VufindTags":["Dress"," Purse"]}}", status: 200, headers: function, config: Object, statusText: "OK"}config: Objectdata: " Array↵(↵ [id] => 1309↵)↵{"Status":true,"Data":{"VufindTags":["Dress"," Purse"]}}"headers: function (name) {status: 200statusText: "OK"__proto__: Object
I have tried to access using data.data which returned the following as a string:
" Array
(
[id] => 1309
)
{"Status":true,"Data":{"VufindTags":["Dress"," Purse"]}}"
I then tried to use JSON.parse to extract the data from the VufindTags. That did not work.
Is there a way to convert this into a JSON Object??
Thanks for any help!!

It looks like the vufind API is giving you PHP print_r output instead of JSON. The best thing to do would be to get them to fix their API. Failing that, you can pull the JSON-ified bits out. I had some success with this:
myObj = JSON.parse(apiOutput.slice(apiOutput.indexOf('{')))
...but I wouldn't put that into an app and call it production ready, especially when the API clearly isn't giving you what it should in the first place.