How to intract with Burrow using JSONRPC - hyperledger

I am using Burrow for creating account, get transaction details and to get balance. i want to try this using JSON RPC using Node js. Could any one can explain me how i can use http server or request model of node js to interact with burrow client.

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OData in Datafactory

I have a task toget some data from an external supplier.
They have a Rest OData API. I have to connect using a subscription-key(APIKey).
When creating the OData LService, I add an Auth Header: "subscription-key" and in the Value field, I enter my key. After saving, I create a new dataset, and the OData LinkedService, provides me with the remote tables. I can choose the table I want and after that I create a pipeline to copy data from that table to my Azure SQL server.
This works fantastic :-)
However, after closing my browser and re-open it, the subscription key that I have entered earlier on the linked service, is now replaced with stars as it is a securestring. When I now run my pipeline, it will think that my key is the ten stars that have replaced my real key.
What am I doing wrong here ?
Also I would prefer to get my value from the KeyVault, but it seems that this is not possible on ODat connections....
Hope someone is able to provide some insight here :-)
BR Tom
From my testing I did not get any error on re-running. However coming to dynamic keys - I was not able to achieve it using the ODATA linked service.
Alternatively, if you can hit the ODATA endpoint with REST / HTTP Connector
You could - have a Web Activity to get the keys from the Key Vault and Set in the Variable.
WEB Activity URL : https://<your-keyvalut-name>.vault.azure.net/secrets/<your-secret-name>;
You could access the output of the web Activity using : #activity('Web1').output.value & Store in a variable.
You can reference this variable as the SUBSCRIPTION KEY for the subsequent steps in the REST/HTTP dataset.
You could pass it along the additional headers

Getting 'unauthorized_client' with Power Platform Custom Connector using OAuth2

I am trying to build a Custom Connector in the Power Platform to connect to the BMC Helix (formerly Remedy) system to create work orders and such. I am using OAuth2 and was given a callback URL, auth URL, token URL, client ID and client secret.
I went to create a connector from scratch. I populated the fields, but I wasn't sure what to put for the 'Refresh URL', so I used the token URL there too.
I am trying to accomplish testing this connector and my successful test would be to get a JWT from doing a POST to the /api/jwt/login endpoint of BMC Helix. It should return a JWT which I can use to make subsequent calls.
Upon testing this, I go to create a connection, but a window opens (which I believe should be a prompt for authentication), but instead it contains an error saying 'unauthorized_client' coming back from the BMC Helix system at the /rsso/oauth2/authorize endpoint. It also contains a property within the URL of redirect_uri = https://global.consent.azure-apim.net/redirect.
Is there something on the Helix side I need to further configure? Not sure why I am getting this....
It sounds like you need TWO METHODS in your connector. A POST to call the token server, a GET (or another POST) to call the API (using the token received from Call 1).
One approach I've successfully used in the past is:
Use Postman to get your token server call working with OAUTH
Then use Postman to get your subsequent API calls working with the token appended
Save both requests to a single Postman collection
Export the Postman collection (as a V1 (deprecated) if I recall correctly)
Import this collection into PowerApps Custom Connector (create new/import from Postman Collection)
You'll have to massage it a bit after import, but it will give you a good headstart and you're starting from a known-good place (working Postman calls)
Good luck!

Trying to get detailed data dumps from new google nest e thermostat

I bought a nest thermostat as I thought it would be able to give me detailed data to showing the target temp and the actual as well as time etc. I needed this for various reasons.
However, it seems the official API "Works with Nest" was closed by Google. I've been able to get postman to ping the same location that the Google Nest Webapp hits and get back the data I need. I want to create a simple webapp to keep polling and save the data locally. However, I'm unable to find the OAuth Client Secret that the Nest Webapp uses to get the authorization code. I had to login via the webapp to get the code in one of the request and then test it out using postman.
Is there any other API that will allow my to poll this data for my Nest easier?
If there isn't another API, is there a way to get the Client ID and Client Secret form the Nest Webapp so I can drop that in mine to use? (I know its hacky, but am I think I'm out of options)

Rails acces external API through a get request from another get request(requestception)

I have a rails client-server app that also needs to get some data from an external api with a authentication token. The authentication token is stored on my rails server.
Basically want I want to do is: when a user triggers a get request from my client-side to my server-side, I get some data from my database on the server and I want to get some data from the external api en send both sets of data as a response back to client.
But I'm not sure if it's a good Idea to send a get request from another get request like that.
Is that how this is typically done or is there a better way?
Create an ActiveJob job with the GET request to external API.
Have your client's GET request to trigger the job.
Collect all the data you need and send response back to client

Caching http responses in iOS

I'm starting an iOS app that consume a Restful API.
I have control over that API and I'm confusing with the caching policies.
To begin, I only need caching a concrete resoruce, but the problem is that resource can change when I insert new record in the database.
Then, how can I tell to the application "Hey! Make the request only if there have been changes and if not, you get the data from the cache!"
I'm using AFNetworking to make requests..
You'll have to make a decision on either server or client side and build your own protocol.
Example:
You could send the server JSON post request which contains the 'version' of the data you have in the app. On the server-side you will increment the version number each time the data gets refreshed. If the version number does not match at server-side, the server will respond with all new data, else the server responds JSON with 'up to date'
EDIT:
If you are looking for an HTTP response saying that the data is not modified. This is done on server side. You'll have to implement this in the server.

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