pi-server | OPC UA Server for Raspberry Pi

 by   kevinherron Java Version: 1.1.0 License: No License

kandi X-RAY | pi-server Summary

kandi X-RAY | pi-server Summary

pi-server is a Java library typically used in Internet of Things (IoT), Nodejs, Raspberry Pi applications. pi-server has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub, Maven.

Raspberry Pi OPC-UA Server.

            kandi-support Support

              pi-server has a low active ecosystem.
              It has 28 star(s) with 12 fork(s). There are 11 watchers for this library.
              It had no major release in the last 12 months.
              There are 4 open issues and 2 have been closed. On average issues are closed in 34 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of pi-server is 1.1.0

            kandi-Quality Quality

              pi-server has 0 bugs and 0 code smells.

            kandi-Security Security

              pi-server has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              pi-server code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              pi-server does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              pi-server releases are available to install and integrate.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              pi-server saves you 453 person hours of effort in developing the same functionality from scratch.
              It has 1069 lines of code, 71 functions and 11 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed pi-server and discovered the below as its top functions. This is intended to give you an instant insight into pi-server implemented functionality, and help decide if they suit your requirements.
            • Performs a read operation
            • Retrieves the read value
            • Create the VPI nodes
            • Implements the read operation
            • Notify all data items that have been modified
            • Notify all data items that have been deleted
            • Called when data items are created
            • Browse all references in the given node
            • Sets the shutdown hook
            • Load a key store from a given directory
            • Reads the sensor
            • Creates a sensor based on its parameters
            • Reads the GPIO configuration
            • Reads the data from the UaNode
            • Reads the rotation angle of the sensor
            • Get the build info
            • Configure logback
            • Writes pending values
            • Writes the specified write values
            • Load plugins
            • Reads data from the sensor
            Get all kandi verified functions for this library.

            pi-server Key Features

            No Key Features are available at this moment for pi-server.

            pi-server Examples and Code Snippets

            No Code Snippets are available at this moment for pi-server.

            Community Discussions


            Repeating Items in RecyclerView
            Asked 2022-Mar-24 at 21:54

            I know this question has been asked before but honestly ,I cant find the right solution. I dont know why after scrolling the RecyclerView, adapter makes same data over and over again.

            I have a project that use retrofit to get data from an api-server and show it on a RecyclerView. I'm receiving data correctly and the recived list dont have any repeated items. Just before passing the data to RecyclerAdapter in my Activity, I Log the data and still everything looks good. so I think the problem is the Adapter.

            PS. while I'm running the app and scrolling RecyclerView to the end, "Log" inside the adapter ,returns unique items. I think I have a mistake in binding data.



            Answered 2022-Mar-24 at 21:44

            For the Holder make itemView a val, and then in bindData call: itemView.txtDrinkName.text = drinkData.strDrink

            binding is just a class property, I am not sure how it would know what view is associate with a specific holder.

            Source https://stackoverflow.com/questions/71609713


            How to login to ArgoCD CLI non-interactive in CI like GitHub Actions?
            Asked 2022-Feb-24 at 11:47

            We have a full-blown setup using AWS EKS with Tekton installed and want to use ArgoCD for application deployment.

            As the docs state we installed ArgoCD on EKS in GitHub Actions with:



            Answered 2022-Feb-24 at 11:47


            Getting 500 Internal Server Error when calling /mint_nft NEAR REST API
            Asked 2022-Feb-09 at 13:22

            I have cloned this NEAR REST API SERVER repo into my local system and haven't made any changes to its original code. Only added console logs for debugging purpose. Using its API, I have successfully deployed a contract to testnet account and also called that contract.

            But when comes to NFT part, its not working. I'm calling /mint_nft API and getting 500 Internal Server Error.

            It's breaking here:

            let create_token = await token.ViewNFT(tokenId, contract);

            create_token is null.

            If I do minting with NEAR CLI, its working fine and I can see that NFT in my testnet wallet..

            near call $ID nft_mint '{"token_id": "02", "receiver_id": "'$ID'", "token_metadata": { "title": "Design #2", "description": "Art Design", "media": "https://ipfs.io/ipfs/Qme7ss3ARVgxv6rXqVPiikMJ8u2NLgmgszg13pYrDKEoiu", "copies": 1}}' --accountId $ID --deposit 0.1




            Answered 2022-Feb-09 at 13:22

            There are several issues in the existing repository for /mint_nft.

            The REST-API implemented doesn't follow the correct format when minting an NFT. I have created a PR to address the issue

            In short, the function call to mint an NFT is missing one argument, receiver_id, and the format and name of metadata is not correct. It should be token_metadata: {} // type is object, not string.

            If we change the postData to

            Source https://stackoverflow.com/questions/71028781


            Connecting from one AWS Elastic Beanstalk environment to another
            Asked 2022-Feb-07 at 07:36

            I have 2 Elastic Beanstalk environments, "api-server" & "website". Both have a capacity of 1-4 EC2 instances and a load balancer. The load balancer and the instances have both public IP addresses. I want to connect from the "website" to the "api-server" but i can't get it to work without making the "api-server" public. The "api-server" should not be public.

            I am connected with a VPN that is allowed HTTP connections to both EB environments and i can confirm that both apps respond.

            Both EB environments have 2 security groups, one for the load balancer called "Load Balancer Security Group" and one for the instances called "VPC Security Group". All load balancer and VPC security groups have an outbound rule allowing all traffic on all protocols.

            Since i want to connect from the "website" to any of the instances of "api-server" i want to connect to the load balancer and not to any of the instances directly. So i should add an inbound rule to the load balancer group of the "api-server" that allows traffic from the "website"'s instances.

            The instances all have the "VPC Security Group" but adding the rule did not give the "website" instances access to the "api-server". I also tried adding the load balancer security group without success. And i also tried the type "All traffic".

            I also tried to connect to the "api-server" over different URLs like the load balancer but also no connection possible.

            When i add a rule that allows traffic to everywhere, eg. source type "Anywhere-IPv4", i can access the "api-server" from the website. But as i said i don't want the "api-server" public it should be accessible only by the "website".

            What also works is adding a rule with the IP address of the current "website" instance, but since they change with deployment of a new version and they are sometimes more or less instances (autoscaled from 1 to 4) its not an option.

            So how does it work?

            I searched everywhere in the docs but i can't find anything i didn't already tried. What am i missing? This surely shouldn't be so hard?

            I appreciate every help!

            Edit: Everything is in the same VPC.



            Answered 2022-Feb-07 at 07:32

            So how does it work?

            Referencing security groups (SGs) works only withing VPC or peered VPCs. Since you are accessing your second EB over the internet, not within same VPC, you can't reference SGs.

            You have to whitelist public IP addresses of your instances. The best way is to put them in private subnet and use NAT gateway. The NAT gives you a single public static IP which you can use in your ingress rule of the second EB environment.

            Source https://stackoverflow.com/questions/71014765


            Read data from own api url and use a interface
            Asked 2022-Feb-06 at 04:07

            I try to get the json-data from a api-server. I can't add this to the variable. I got the error

            Type is missing the following properties from Type "Observable" missing the properties from type "GAMELIST[]": "length, pop, push, concat" und 27 weitere.ts(2740)

            Where I is my mistake?



            Answered 2022-Feb-06 at 01:45

            I think this is the problematic line.

            Source https://stackoverflow.com/questions/71003365


            Change in Grafana helm chart to install as kind Statefulset instead of Deployment
            Asked 2022-Feb-03 at 16:26

            I had installed kube-prometheus-stack from the helm chart repo prometheus-community



            Answered 2022-Feb-03 at 08:21

            Enable persistence if you want to make it stateful. However I did not see an option to make Grafana a statefulset in the chart you mentioned.

            Usually you will see persistence enable option if the corresponding Helm chart support it. For example: you can enable persistence in this grafana helm chart. You may generate template out of it and make use of it in your repo.

            Source https://stackoverflow.com/questions/70960615


            Keep a process running throughout docker build process
            Asked 2022-Feb-02 at 21:55

            I'm trying to keep a devpi instance running inside a container throughout the build process so subsequent RUN commands can make use of it and populate it's database during the build. e.g



            Answered 2022-Feb-02 at 19:49

            I think if you want to run a certain command in the background you might need to run:

            Source https://stackoverflow.com/questions/70960867


            How to configure nginx to serve an angular app on / and proxy /api to another api server?
            Asked 2022-Jan-26 at 13:53

            I am trying to configure a nginx Docker container to serve the Angular application on its root path (which works so far) and make the backend via a proxy on /api available.

            I've read multiple threads on Stackoverflow and some blogs, but no configuration worked so far. If I call my app on / the Angular app works. When I try to call /api on the same url it gets redirected to / and shows no content -- I guess the Angular router got some route it cannot handle. But Nginx should catch that route before the Angular app gets called. How do I do that?

            I am not sure what is wrong. Do you see the error in my config?



            Answered 2022-Jan-26 at 13:32

            I would use the syntax below to let Nginx know this comes before your generic location location /.

            Source https://stackoverflow.com/questions/70864008


            In Lambda with Node.js and Axios, how do I pass a log entry as a variable to another axios function
            Asked 2022-Jan-18 at 16:35

            I'm writing a Lambda function using Axios to make calls to my external API server. My goal is to perform two steps:

            Step one is to authenticate my user to retrieve an access token. Step two is to use that access token in order to GET server alarms.

            The first part axios.post works and the access token shows in the logs. I cannot seem to set that as a variable to pass to the second step. If I have it as two separate functions it does not know what the token value is, so I was trying to potentially nest the axios functions to see if that could read the value. I now receive a TypeError: (intermediate value)}.then is not a function.

            Here's where I stand with the the Lambda function. I appreciate the help!



            Answered 2022-Jan-18 at 16:35

            I figured it out. It was missing a parentheses after the headers and just before .then(function(alarmResp). Here's the corrected formatting of the function:

            Source https://stackoverflow.com/questions/70757891


            NodeJS and Iconv - "ISO-8859-1" to "UTF-8"
            Asked 2022-Jan-02 at 23:02

            I created a NodeJS application which should get some data from an external API-Server. That server provides its data only as 'Content-Type: text/plain;charset=ISO-8859-1'. I have got that information through the Header-Data of the server.

            Now the problem for me is that special characters like 'ä', 'ö' or 'ü' are shown as . I tried to convert them with Iconv to UTF-8, but then I got these things '�'...

            My question is, what am I doing wrong?

            For testing I use Postman. These are the steps I do to test everything:

            • Use Postman to trigger my NodeJS application
            • The App requests data from the API-Server
            • API-Server sends Data to NodeJS App
            • My App prints out the raw response-data of the API, which already has those strange characters
            • The App then tries to convert them with Iconv to UTF-8, where it shows me now this '�' characters

            Another strange thing: When I connect Postman directly to the API-Server, the special characters get shown as they have too without problems. Therefore i guess my application causes the problem but I cannot see where or why...

            // Javascript Code:



            Answered 2022-Jan-02 at 23:02

            So after some deeper research I came up with the solution to my problem.

            The cause of all trouble seems to lie within the post-process of axios or something similar. It is the step close after data is received and convertet to text and shortly before the response is generated for my nodejs-application.

            What I did was to define the "responseType" of the GET-method of axios as an "ArrayBuffer". Therefore an adjustment in axios was necessary like so:

            Source https://stackoverflow.com/questions/70552380

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install pi-server

            You can download it from GitHub, Maven.
            You can use pi-server like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the pi-server component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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