Applications including IOT and real-time transactions, as well as access control, etc.Thank you

--defaultchain flag was removed from the latest fabric. so the docker-composer.yml file should be revised in the configuration of peer0.org1.example.com. the start command can changed from
command: peer node start --peer-defaultchain=false
to be
command: peer node start

I tried to deploy the fabric, but I couldn't create a channel. with the following error:

✖ Starting business network definition. This may take a minute...
Error: Error trying to start business network. Error: Unable to initalize channel. Attempted to contact 1 Peers. Last error was Error: Error: Failed to connect before the deadline
Command failed

when started angular, it can be accessed from http://localhost:4200. but it cannot work correctly using ngnix reverse proxy. open http://mysite.com/angular in the browser, it can only display Load .... while http://mysite.com/explorer works ok. so i think there is something wrong with angular or nginx.

here is my configuration.

server {
         listen 80;
         server_name mysite.com;

         location /explorer {
             proxy_pass http://localhost:3000;
         }

         location /angular {
             proxy_pass http://localhost:4200;
         }
     }

Hello, could you provide a Windows OS version for this implementation please? Thank you

I have done the steps to run the web app localhost:4200.
But, I got an error "Error; Could not connected to REST server. Please check your configuration details.

Could someone help me to solve this error?

Ubuntu16.4 and the environment is the same with samples.

Everything working fine but "Utility Company" link is not working.

When I put cursor on this link it shows "http://localhost:4200/Utility" and should be "http://localhost:4200/UtilityCompany" because all files are in that folder.

I tried my best but couldn't find solution.

How and where to change this? I am not an expert so asking this question.
Can anyone please help.

When I set up the app in a Ubuntu 16.04 LTS server and run it, I got this error when doing "Add Resident".
Could not connect to REST server. Please check your configuration details

From Chrom I see the Coin API call is still pointing to port 3000 on localhost.
http://localhost:3000/api/Coins

Is there way to configure the Angular app to use the domain name and port of my own choosing to do the API calls?

Thanks!

After generating the bna file not able to install it to fabric as it contains error.
Warning prepublish-on-install:
As of npm@5, prepublish scripts are deprecated.
Use prepare for build steps
Skipping optional dependency [email protected]

found 94 vulnerabilities

During start of business network, chaincode error (status 500, message: is not a valid endorsement system chaincode)

Hello, first of all I would say this is a great project, well done to the developers.
It is mentioned in the README that the code can be extended to integrate IoT devices such as smart meters. Could you guys give a little heads up as to where one would start working on to achieve that goal.

Upon running ./startFabric.sh on WSL, I get the error SSL error: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:661).

Edit node_modules/webpack-dev-server/lib/Server.js line 425 update the line as

return true;

//Banks to have read access to all coins assets
rule BankAccessCoinsRecord {
    description: "Allow banks read access to all coins assets"
    participant: "org.decentralized.energy.network.Bank"
    operation: READ
    resource: "org.decentralized.energy.network.Coins"
    action: ALLOW
}

//Banks to have read/update access to all cash assets
rule BankAccessCashRecord {
    description: "Allow banks read access to all cash assets"
    participant: "org.decentralized.energy.network.Bank"
    operation: READ
    resource: "org.decentralized.energy.network.Cash"
    action: ALLOW
}

Shouldn't the operation for both of them also include UPDATE?

During step 3, npm install couldn't complete successfully. I am using node 8.4.0, npm 5.4.0 on Mac Sierra 10.12.6

the startFabric.sh script has the following errors:

Create the channel

docker exec peer0.org1.example.com peer channel create -o orderer.example.com:70
50 -c composerchannel -f /etc/hyperledger/configtx/composer-channel.tx
Error response from daemon: Container 8a2603a405ed625b689f960bc81afa3269b54664ff
f15a587dc12cac6007c21c is not running

Hi ,

I just wanted to know the command you have used to generate the "angular-app" folder when I try to generate It is creating only for asset but not for participant, but in your example I can see it is generating for both of them.

When I try to deploy the network, it says missing argument value

What would be the correct way to deploy?

Question, is it possible to add a window where the blockchain blocks show up as one adds transactions? That would be really great so one can show how the blocks are added to the blockchain as one runs the transactions.

It would really just be a list of the transaction IDs as far as I can see. It usually drives home how the blockchain works.

Something like this:

Blockchain:
7c299bbd-09ae-456f-8e97-30016ab6cec10
7c299bbd-09ae-456f-8e97-30016ab6cec9
7c299bbd-09ae-456f-8e97-30016ab6cec8
7c299bbd-09ae-456f-8e97-30016ab6cec7
7c299bbd-09ae-456f-8e97-30016ab6cec6
7c299bbd-09ae-456f-8e97-30016ab6cec5

Growing as te demo progresses.

Hi, I have succeeded to run the angular app.
But, somewhat I can create a participant, but I cannot create another one.
In other words, after the creation of resident, I cannot create a utility company at all.

What is wrong?

I got this error while adding Resident. Error: Could not connect to REST server. Please check your configuration details.

While npm start in angular-app got following error:
Error: Composer runtime (0.19.14) is not compatible with client (0.20.0)
[1] It will be retried for the next request.
[1] Exception: Error: Error trying to ping. Error: Composer runtime (0.19.14) is not compatible with client (0.20.0)
[1] Error: Error trying to ping. Error: Composer runtime (0.19.14) is not compatible with client (0.20.0)
[1] at _checkRuntimeVersions.then.catch (/home/r1/Decentralized-Energy-Composer/angular-app/node_modules/composer-connector-hlfv1/lib/hlfconnection.js:806:34)
[1] at
[1] npm ERR! code ELIFECYCLE
[1] npm ERR! errno 1
[1] npm ERR! [email protected] app: composer-rest-server -c admin@decentralized-energy-network -n never -w true
[1] npm ERR! Exit status 1
npm ERR!
[1] npm ERR! Failed at the [email protected] app script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
[1]
[1] npm ERR! A complete log of this run can be found in:

$ npm list -g --depth=0
/home/r1/.nvm/versions/node/v8.9.4/lib
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
└── [email protected]

npm ERR! invalid: [email protected] /home/r1/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/tar/node_modules/minizlib

Can anyone Please Help...

I receive this error by trying to interact with the web-app, so far no buttons or routing works:

core.es5.js:1020 ERROR Error: Uncaught (in promise): EmptyError: no elements in sequence
EmptyError: no elements in sequence
    at new EmptyError (EmptyError.js:27)
    at FirstSubscriber._complete (first.js:154)
    at FirstSubscriber.Subscriber.complete (Subscriber.js:121)
    at MergeMapSubscriber._complete (mergeMap.js:144)
    at MergeMapSubscriber.Subscriber.complete (Subscriber.js:121)
    at MapSubscriber.Subscriber._complete (Subscriber.js:139)
    at MapSubscriber.Subscriber.complete (Subscriber.js:121)
    at EmptyObservable._subscribe (EmptyObservable.js:82)
    at EmptyObservable.Observable._trySubscribe (Observable.js:173)
    at EmptyObservable.Observable.subscribe (Observable.js:161)
    at new EmptyError (EmptyError.js:27)
    at FirstSubscriber._complete (first.js:154)
    at FirstSubscriber.Subscriber.complete (Subscriber.js:121)
    at MergeMapSubscriber._complete (mergeMap.js:144)
    at MergeMapSubscriber.Subscriber.complete (Subscriber.js:121)
    at MapSubscriber.Subscriber._complete (Subscriber.js:139)
    at MapSubscriber.Subscriber.complete (Subscriber.js:121)
    at EmptyObservable._subscribe (EmptyObservable.js:82)
    at EmptyObservable.Observable._trySubscribe (Observable.js:173)
    at EmptyObservable.Observable.subscribe (Observable.js:161)
    at resolvePromise (zone.js:824)
    at resolvePromise (zone.js:795)
    at zone.js:873
    at ZoneDelegate.invokeTask (zone.js:425)
    at Object.onInvokeTask (core.es5.js:3881)
    at ZoneDelegate.invokeTask (zone.js:424)
    at Zone.runTask (zone.js:192)
    at drainMicroTaskQueue (zone.js:602)
    at ZoneTask.invokeTask [as invoke] (zone.js:503)
    at invokeTask (zone.js:1540)

As composer will no longer be getting updates from Fabric version 1.3, several people and projects, I imagine, would be looking to shift to either using go or nodejs for the chaincode.

I myself am migrating to nodejs and would like to create a public repository to demonstrate this exact same code base using nodejs but will require some additional collaborators to help out. Looking for some guidance.

Not sure where to post this so I opened an issue over here, hope that is ok with you. I am keen to learn and thought this is a good way to give back as well.

I am able to go thru the first two steps in the installation instructions on my MacBook.

In step three I then do:
Step 1: cd ../ // which brings me to the Decentralized-Energy-Composer directory
Step 2: npm install //which works fine
Step 3: composer archive create -a dist/decentralized-energy-network.bna --sourceType dir --sourceName .

But there is no "composer" command in the Decentralized-Energy-Composer directory. On the other hand I can find a number of composer directories in the node-modules directory.

Any idea what might be the trouble?

Got following error after following the instructions on Ubuntu 16.04 VPS
root@blockchain:~/Energy/Decentralized-Energy-Composer/dist# composer runtime install --card PeerAdmin@hlfv1 --businessNetworkName decentralized-energy-network
Do not run Composer as root/super user! See https://getcomposer.org/root for details

[Symfony\Component\Console\Exception\CommandNotFoundException]
Command "runtime" is not defined.

These lines in permissions.acl ensure any company can read any other company's data which is not ideal. I wanted to fork this repo and make it such that the read access to other utility companies data is revoked, so competing utility companies cannot read each other's data.

It is my understanding I will need to use composer-passport to achieve this, as I will be required to juggle multiple certificates for different users. Can I have some guidance for it please sir? I would want to work on this and contribute back to the project.

//Utility Companies to have access to their own account
rule UtilityCompanyAccessOwnRecord {
    description: "Allow utilty company to access only their profile"
    participant(p): "org.decentralized.energy.network.UtilityCompany"
    operation: READ, UPDATE, DELETE
    resource(r): "org.decentralized.energy.network.UtilityCompany"
    condition: (r.getIdentifier() === p.getIdentifier())
    action: ALLOW
}

//Utility Companies to have read only access to other Utility Companies
rule UtilityCompanyReadAccessUtilityCompanies {
    description: "Allow utility companies read access to other Utility Companies"
    participant: "org.decentralized.energy.network.UtilityCompany"
    operation: READ
    resource: "org.decentralized.energy.network.UtilityCompany"
    action: ALLOW
}

In package.json under angular-app folder, the version of composer is still 0.20.6.
"composer-client": "^0.20.6",
"composer-rest-server": "^0.20.6",
it needs update the version to 0.20.7, or you can not browse REST API at http://localhost:3000/explorer.