R - Reading from a list of apis - json

I'm doing a small task that requires the usage of GitHub's APIs.
Most of the data can be retrieved from the main API, but some specific information is an API itself.
Here's how the main API is read by R, using jsonlite package:
The next task is to tell R to sum the number of labels that are 0 in each of those rows of that column "url". For that, R needs to read each API separately.
I'm trying to do something like this:
library(jsonlite)
issues <- fromJSON("THE API LINK")
jsonapis <- issues$url
apis <- fromJSON(jsonapis)
That retrieves the following error message:
Error: Argument 'txt' must be a JSON string, URL or file.
To use with URL, I'd have to copy paste each one manually - I think - and all suggestions I found only in regard to 'file' do not fit.
I have another task similar that involves reading from many APIs simultaneously, but I presume I'll be able to do finish that if I can understand this one.
Can someone help me?
I apologize if this is not very clear, but this is the best I can do. Unfortunately, I'm not too comfortable in these topics and APIs is really a pain to me.
Thanks in advance!

Related

How to find how many json endpoints an api has

I’m in the middle of making an Express app. It’s just a learning project.
I’m getting some info from an Anime api called jikan.me, it provides info about different Anime series like a picture url and synopsis.
For example one is at https://api.jikan.me/anime/16 .
Now, the jikan api might have a json endpoint at anime/1 but there's nothing at anime/2.
I want to find a list of all the numbers (https://api.jikan.me/anime/[numbers]) that actually contain endpoints.
I've tried simply going to https://api.jikan.me/anime but it returns error: No ID/Path Given.
I'm expecting there is likely no absolute answer to this problem but that I might learn something about server-side code along the way.
Where would I begin to look to find this info?
This is a bit late but, Jikan is an unofficial REST API for MyAnimeList. The IDs are respective to the IDs on MAL. For example; https://myanimelist.net/anime/1 can be parsed through https://api.jikan.moe/anime/1 but the ID 2 does not exist on MAL. It's a 404, hence that error.
To initially get some IDs, you can try the search endpoint.
Furthermore, I'll be releasing REST 2.2 quite soon (this month) which will give you the ability to parse from pages like these and thus you'll get another endpoint that provides a handful of IDs to get their data from.
Source: I'm the developer of Jikan
If it's not in the documentation it's probably information not available to you... a REST api needs to be specifically configured to offer certain endpoints, that number at the end might just be an ID that's searched for in an internal database and there's no way for the application to know if there's gonna be something there; all they can do is return an error message for you to handle as is the case here.

Non-standard JSON and Azure Logic Apps

I have an API that produces JSON like this:
)]}',
{
//JSON DATA
}
The //JSON DATA is valid JSON, but the )]}', up top is not.
When I try to GET this data via a Logic App, I get:
BadRequest. Http request failed: the content was not a valid JSON.
So, a few related questions:
1) Can I tell the logic app to return the invalid JSON anyway?
2) How can debug the issue better? I happen to know that the response is invalid, but what if I didn't? Can I see the raw data somewhere?
3) This is all done via the Azure web portal. Are there better tools? Visual Studio?
I should also mention that if I call a route on the same API that returns XML instead of JSON, then the Logic App works fine. So it definitely doesn't like the JSON response in particular.
Thanks!
First of all, please do not post three questions as a single question.
Question 1). The best thing you can do is make the API return a valid JSON object. This is good for million reasons. Here're a few:
it's pretty much a standard (either valid JSON or XML -- yeah, old school way);
therefore, no users of this API (including you) will need to struggle and guess what's going on and why;
your Logic App's step will just work without adding extra complexity;
you will make this world and your karma better.
If API-side changes are not within your reach, I don't think you can do much. If you're lucky and the HTTP action is successful (Status Code 2xx), you can try to use a Query Action with a function that truncates the first characters. It will look something like this (I don't know the exact syntax): #Substring(body('myHttpGet'), 4, length(body('myHttpGet')) - 4) where myHttpGet is the id of the Http Get action.
However, once again, if possible, I strongly recommend fixing up the API which is the root cause of the problem, instead of dealing with garbage response after that.
UPDATE Another thing you can do is wrap the dirty API. For example, you could create a trivial Azure Function that invokes the API you don't directly control, and sanitizes the response for you consumption requirements. This Azure Function function should be easy to call from the Logic App. It costs almost nothing (unless we're talking millions of requests/month). The only drawback here is the increasing latency, which may be not an issue at all -- test it and see whether it adds less than 100ms or so... Oh, and don't forget to file a ticket with the API owner, they make our world a bad place!
Question 2) In Azure Logic App web UI you can Look into the execution details and the error will definitely be there.
Question 3) You're asking for a tool recommendation which is by definition a highly subjective thing and is off-topic on StackOverflow.
TL/DR: The other app is not producing valid JSON.
Meaning, this is not a problem for you to solve. The other app has to return valid JSON if the owner claims it should.
If they cannot or will not produce valid JSON, then the first thing you need to do is inform your management that you will have to spend a lot of extra time accommodating their non-standard format.

Parse Json in Logic App from Stream Analytics -> Service Hub -> Logic Apps

I'm trying to build a logic app that inserts data into a Sql database. The data is coming from s Stream Analytics job, outputting it on a Service Bus topic, consumed in Logic Apps in Service Bus trigger.
To populate the properties of the row inserted (lets say it only has one column 'Name'), I've found that this should work using following syntax:
"body": {
"Name": "#{json(decodeBase64(triggerBody()['ContentData'])).Name}"
},
Provided the message body contains a 'Name' property.
However I get following error message when running this:
{"code":"InvalidTemplate","message":"Unable to process template language expressions in action 'Insert_row' inputs at line '1' and column '2017': 'The template language function 'json' parameter is not valid. The provided value '#\u0006string\b3http://schemas.microsoft.com/2003/10/Serialization/��{\"time\":\"2016-05-25T10:29:17.4953250Z\",\"Name\":\"Y-Axis\",\"Value\":81.0,\"Date\":\"2016-05-25T10:29:17.4953250\",\"EventProcessedUtcTime\":\"2016-05-25T10:29:17.5525449Z\",\"PartitionId\":2,\"EventEnqueuedUtcTime\":\"2016-05-25T10:29:17.2220000Z\"}\u0001' cannot be parsed: 'Unexpected character encountered while parsing value: #. Path '', line 0, position 0.'. Please see https://aka.ms/logicexpressions#json for usage details.'."}
So it seems like that the content is enclosed in another envelope that is preventing json parsing to work.
1) Any simple way how to get around this?
2) Isn't such an integration all within Microsoft Stack just supposed to work without this mocking around?
Thanks,
Stefan
with the limited string functions available in he workflow definition language I had to use a long winded way for removing the additional strings
#{json(substring(replace(decodeBase64(triggerBody()['ContentData']),'#string3http://schemas.microsoft.com/2003/10/Serialization/��', ''),0,sub(length(replace(decodeBase64(triggerBody()['ContentData']),'#string3http://schemas.microsoft.com/2003/10/Serialization/��', '')),1))).fieldname}
is there a better way to do this
Thanks for reporting this, you're right it should simply work. There is a known issue where ASA ServiceBus output JSON is being wrapped in a XML header. It will be addressed in a near future but can't specify a particular date. Could you please workaround it (maybe using substring/replace) until then ?
cheers,
Chetan
Sorry for the delay in getting back, this issue is now fixed. Its exposed under a new compatibility level (1.1) to avoid breaking existing solutions. Please use this URL to configure your job with compat level 1.1 and give it a try.
cheers!

Export entire Logical Data Model from GoodData

In this https://developer.gooddata.com/article/data-modeling-api there is a logical data model and its corresponding JSON. However, I can't seem to find out how to extract JSON from a logical data model via the REST API. Is there a way to do this other than using the single load interface (which would be very inefficient)?
For the record, my end goal is to make a tool that extracts that JSON (which would be in dev), then post that to the ldm manager2, and then apply the suggested changes through the returned MaQL to production. Any help is greatly appreciated
Currently this works only for Getting or Updating the entire Project. Anyway you can GET all model definition by simple API call. See the documentation:
http://docs.gooddatadrafts.apiary.io/
There is a GET request which is asynchronous. You can build some logic on the top of that on your end. You can get all models, store per datasets information, but at the end you need to POST the "final version" and all updates will be applied.
Let me know if I can help you with anything!
Regards,
JT

Processing hugely varied JSON data from Facebook Graph API news feed

OK so I have authenticated fine and understand JSON including how to process it with PHP...
http://php.net/manual/en/function.json-decode.php
But my issues are that the JSON data that the API returns after hitting up FB...me/home end point is very varied. I understand that so is the data on a FB news stream but...
My end game is to show this info in a mash-up with other data but there seems no clear way of formatting it and each item in the JSON response is hugely different with different values. No consistent "item_type" : "photo / status update / message" that I could use to template it up into nicely formatted content blocks on the front end?
Any suggestions on the best way to process / style this type of vary varied JSON?
Thanks.
I would suggest checking out Google's gson library for parsing through JSON documents. Assuming that you are familiar with Java it makes it relatively easy to develop a custom parser that can adapt to documents stored under a flexible schema.
The library page is here. You can find the JsonReader documentation here.
Edit: It also might help to post some example documents so we can get a better idea of what kinds of results you're getting.