model is not a function error in loopback - loopback

I am making a rest api using loopback. I have when I was starting the project using npm start I encountered the error below
app.repository() function is needed for RepositoryBooter. You can add it to your Application using RepositoryMixin from #loopback/repository.
app.dataSource() function is needed for DataSourceBooter. You can add it to your Application using RepositoryMixin from #loopback/repository.
Cannot start the application. TypeError: this.app.model is not a function
at ModelBooter.load (D:\api_luxorides\api_exp\node_modules\#loopback\boot\src\booters\model.booter.ts:58:32)
at Bootstrapper.boot (D:\api_luxorides\api_exp\node_modules\#loopback\boot\src\bootstrapper.ts:123:11)
at ApiExpApplication.boot (D:\api_luxorides\api_exp\node_modules\#loopback\boot\src\mixins\boot.mixin.ts:112:7)
at main (D:\api_luxorides\api_exp\src\index.ts:7:3)

Related

Not able to run azure logic apps locally using VScode and Azurite

I am using VSCode to create and test my logic apps locally. I have created a simple HTTP trigger and response for it. I have installed all the components and versions correctly. I am getting below error when I run my logic apps,
**Workflow Error: operationName='WorkflowDefinitionProvider.ProcessWorkflow', message='Workflow 'test-1' validate and create workflow failed, the error is 'One or more errors occurred. (Unexpected HTTP status code 'NotFound'.) (Unexpected HTTP status code 'NotFound'.)'', exception='System.AggregateException: One or more errors occurred. (Unexpected HTTP status code 'NotFound'.) (Unexpected HTTP status code 'NotFound'.)
[2022-05-03T02:52:23.134Z] ---> Microsoft.WindowsAzure.Storage.StorageException: Unexpected HTTP status code 'NotFound'.
[2022-05-03T02:52:23.136Z] ---> System.Net.WebException: The remote server returned an error: (404) Not Found.**
It is also giving me below error in the logs,
**ErrorCode:
[2022-05-03T03:08:44.593Z] ', extensionVersion='1.0.0.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='00000000-0000-0000-0000-000000000000'.
[2022-05-03T03:08:44.595Z] The listener for function 'Functions.WorkflowDispatcher' was unable to start.
[2022-05-03T03:08:44.595Z] The listener for function 'Functions.WorkflowDispatcher' was unable to start. Microsoft.WindowsAzure.ResourceStack: Unexpected HTTP status code 'NotFound'. The remote server returned an error: (404) Not Found.**
The process to test that I am following,
Start azurite in VSCode
and then Execute function - func host start
Anyone has any clue or faced similar problems? I am using logic apps first time.
To be able to test HTTP triggers locally you need to
"To locally run webhook-based triggers and actions, such as the built-in HTTP Webhook trigger, in Visual Studio Code, you need to set up forwarding for the callback URL."
https://learn.microsoft.com/en-us/azure/logic-apps/create-single-tenant-workflows-visual-studio-code

SOAP API Automating testing with ROBOTFRAMEWORK

Good day,
I am trying to use robot framework to test a soap based api. I tried using the RobotFramework-Soap library first. I tried a sample case and it works but as soon as I put in my api link it does not work. Im not sure if it is because my api link contains an api.
N.B. due to confidentiality I am unable to post the actual api link. But it is in the format shown below.
*** Settings ***
Library SoapLibrary
Library OperatingSystem
*** Test Cases ***
Example
Create Soap Client http://000.000.000.000:8000/SomeService?wsdl
${response} Call SOAP Method With XML ${CURDIR}/request.xml
${text} Get Data From XML By Tag ${response} AddResult
Log To Console ${text}
Save XML To File ${response} ${CURDIR} response_test
When I run the above test. It fails with following error:
ConnectionError: HTTPConnectionPool(host='xxx_cert', port=8000): Max retries exceeded with url: /SomeService?xsd=xsd0 (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 11001] getaddrinfo failed'))
I even tried using the suds library as well. and when i do a simple test as follows:
***Test Cases***
Example
Create Soap Client http://000.000.000.000:8000/SomeService?wsdl
I get the following error: URLError: urlopen error [Errno 11001] getaddrinfo failed
I did some searching and I found that it could be related to the port. But Im not sure how to resolve this issue.
Any assistance would be greatly appreciated.
Thanks,
Lee
The solution was to edit the local host file to cater for the web service. That seemed to solve all the problems.

Error while deploying Aion dApp through frontend : fs.readFileSync is not a function

I was deploying my java contract to the Mastery network through the frontend by using a MERN stack app and came across the following error while compiling:
Module not found: Error: Can't resolve 'fs' in '/home/parina/Documents/aion-counter/node_modules/aion-web3-eth/src'
To rectify this, I added
node: {
fs: "empty"
},
to my webpack.config.js file.
After this, I was successfully able to compile my project and start the server but on opening the project in the browser, the contract was not deployed and I got the following error in the console:
TypeError: fs.readFileSync is not a function at Contract.deploy (index.js?60f4:244) at _callee$ (Main.js?1523:40) at tryCatch (runtime.js?280d:65) at Generator.invoke [as _invoke] (runtime.js?280d:303) at Generator.prototype.<computed> [as next] (runtime.js?280d:117) at step (Main.js?1523:9) at eval (Main.js?1523:9) at new Promise (<anonymous>) at eval (Main.js?1523:9) at deploy (Main.js?1523:19)
After searching on various forums, I found out that fs is not supposed to be used on the frontend and I was suggested alternatives to it. But it here it is being used by the Aion node modules and not directly and therefore I can’t seem to find the way around it.
As you mentioned since, fs is a server-side module, the file can be uploaded (through react or whatever is the clientside module) to the server and executed server-side and response returned to the client.
So I would suggest to get the encoded byte code of the jar along with the deployment arguments and set the transaction data field to the encoded data.
For example, assuming you are deploying the counter sample contract(https://docs.aion.network/docs/deploy-a-contract#section-example-script):
let data = "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const Tx = {
from: "Your address",
data: data,
gasPrice: 10000000000,
gas: 5000000,
type: '0x2' //AVM java contract deployment
};
This can be your transaction object.
The issue got resolved here:
https://github.com/aionnetwork/aion_web3/issues/78#issuecomment-513938605
Since fs cannot be used on the client-side, I shifted the deployment function in my MERN dApp on the server-side while doing the rest of the interactions on the client-side.

Derby app created using 'derby new test' not working

I've installed derbyjs using npm install -g derby and then created a test app using derby new test.
Then i started the app using node server.js and I got the following output:
info - socket.io started
Starting cluster with 1 workers in undefined mode
`kill -s SIGUSR2 7161` to force cluster reload
Go to: http://localhost:3000/
info - socket.io started
So I tried to request http://localhost:3000/, but the site does not finish loading and I get the following exception:
TEMPLATE ERROR
Error: Model mutation performed after bundling for clientId: 79f4a9f3-25fc-438d-b9f4-a450dccf9566
at Model.errorOnCommit [as _commit] (/web/derby/test/node_modules/derby/node_modules/racer/lib/bundle/bundle.Model.js:64:9)
at /web/derby/test/node_modules/derby/node_modules/racer/lib/txns/txns.Model.js:120:15
at next (/web/derby/test/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at /web/derby/test/node_modules/derby/node_modules/racer/lib/txns/txns.Model.js:107:16
at next (/web/derby/test/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at /web/derby/test/node_modules/derby/node_modules/racer/lib/txns/txns.Model.js:101:16
at next (/web/derby/test/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at /web/derby/test/node_modules/derby/node_modules/racer/lib/txns/txns.Model.js:92:16
at next (/web/derby/test/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at Object.run (/web/derby/test/node_modules/derby/node_modules/racer/lib/middleware.js:10:12)
events.js:68
throw arguments[1]; // Unhandled 'error' event
^
Error: Cannot write after end
at Gzip.write (zlib.js:311:31)
at ServerResponse.res.write (/web/derby/test/node_modules/express/node_modules/connect/lib/middleware/compress.js:82:18)
at Object.View._render (/web/derby/test/node_modules/derby/lib/View.server.js:337:9)
at /web/derby/test/node_modules/derby/lib/View.server.js:276:10
at Array.2 (/web/derby/test/node_modules/derby/lib/View.server.js:300:5)
at Object.Promise.resolve (/web/derby/test/node_modules/derby/node_modules/racer/lib/util/Promise.js:21:19)
at /web/derby/test/node_modules/derby/lib/View.server.js:136:17
at /web/derby/test/node_modules/derby/lib/files.js:224:7
at Object.oncomplete (fs.js:308:15)
at process._makeCallback (node.js:248:20)
I have absolutely no idea how I can get it running... Is it a bug, or am I doing something wrong?
Update
I've created a bug report on the derby repository: https://github.com/codeparty/derby/issues/170

Communicating with DB through SSH in GWT app (using RPC)

I am trying to write a GWT back-end using the RPC model for java servlets.
Is it possible to ssh tunnel within an RPC in order to communicate with a remote sql database?
The code I try to execute is below, using Jsch. The error occurs on "session.connect();"
String host="xxxxx.xxx.edu";
String user="username";
String password="password";
Session session= null;
try{
//Set StrictHostKeyChecking property to no to avoid UnknownHostKey issue
java.util.Properties config = new java.util.Properties();
config.put("StrictHostKeyChecking", "no");
JSch jsch = new JSch();
session=jsch.getSession(user, host, 22);
session.setPassword(password);
session.setConfig(config);
session.connect();
}
The runtime error I get on the 'session.connect()' line is as follows: (scroll right to see whole error)
com.jcraft.jsch.JSchException: java.security.AccessControlException: access denied (java.net.SocketPermission xxxxx.xxx.edu resolve)
at com.jcraft.jsch.Util.createSocket(Util.java:341)
at com.jcraft.jsch.Session.connect(Session.java:194)
at com.jcraft.jsch.Session.connect(Session.java:162)
at com.front.server.GameServiceImpl.createGame(GameServiceImpl.java:39)
The frustrating part about this is that I copied/pasted the exact same code into a simple java program and it works. So I know the code is correct; obviously the jetty server which GWT creates for local testing has a problem executing the code. What else can I do / what should I be doing in this situation with GWT? Shouldn't the back-end of a GWT application have the capacity to ssh??
I suggest you try running your gwt app with a different web container (Tomcat, JBoss). You can still make use of debugging functionality by running the hosted mode with the -noserver flag.
See here