The intent of this guide in this section primary focus on the client environment to create Node-Red to connect to the IoT Websocket services in order to get the data from the device.
Before your start this guide in this section, assume you completed some pre-condition, which include:
- User already have Bluemix account, space, and already in some organization
- User already have some knowledge about node-red and already knew how to use it
If you are not satisfied the pre-condition, please following the guide in the invitation letter to have your own Bluemix account.
1. Click the 'menu' icon on the top left, and select the 'Dashboard' option to move your page to the 'Dashboard'
3. In the search box type 'node-red' to speed up to seek the 'Node-RED Starter', then click the item
4. Input App Name, give an unique name. As my example, I used 'myownnode' as my unique name, then click the 'Create' button
The node-red starter template default to binding Node-RED app and Cloudant DB. The initial process will take some time, since the Bluemix need to initial the environment and grant the database service authority.
5. Click the 'Visit App URL' link to launch your Node-RED when it was ready. It will show you some configuration step on the page.
- On the first page, just click 'Next' Button, to move the next page.
- The second page required your security strategy and ask you to provide the name/password to access the app, just choose the 'Allow anyone to access the editor' option in order to simplified the step.
- Leave the the third page and just click the 'Next' Button, not choose any option from the page.
- Click the 'Finish' Button to complete the initialization process and waiting for your Node-RED getting started.
6. Click 'Go to your Node-RED flow editor' button and move to the flow editor page and start to config your flow
- Drag 'Websocket' node from the 'Input' section.
- Double Click the 'Websocket' node, it will open the configuration page.
- 'Type' Options => 'Connect to', click 'Edit' button right behind 'URL'.
- 'URL' input box value is 'ws://sensoriot.mybluemix.net/ws/iot', select 'Send/Recieve Payload' options, then click 'Update' button, it will move to the previous page, then you can input the nick name for node or leave it as empty. Then, click 'Done' button to finish the configuration.(I input the nick name 'iot-device' for this node in my sample)
- From function section drag 'json' node in order to format the incoming data from string to json
- Drag the 'Debug' node from output section, it will be renamed to 'msg.payload' automatiically, and connect 'iot-device' node, 'json' node, and 'msg.payload' node by drag from entry point to the other. Like the sample I provided below.
- Drag another 'Websocket' node from
outputsection, double click to edit.
- 'Type' options => 'Linsen on', click edit URL for defining your Websocket service path. (My sample is '/ws/client/blockchain') Select 'Send/Recieve entire message' and then click 'Update' Button, then it move to the previous page, then click 'Done' button.
- Drag the entry point and connect the nodes betwee 'jason' and 'Websocket' node your created just now. Then click the 'Deploy' button on the top of righ side.
- please remember we will use the websocket link in this page in later step.
https://github.com/yidlhu/blockchaindemo/blob/master/GuideForVirtualBoxVM.MD
< 这一部分比较耗时，已经在虚拟机里面配置完毕，大家不必重新配置，建议课后自行练习 >How to deploy blockchain demo into local docker environment
The goal is to deploy blockchain demo on local blockchain docker images. It is a blockchain demo for 2017 innovation day training.
1. Find your project folder, e.g. /Users/Documents/Blockchain@Local, then run the command: 'unzip fabric_images_v0.6.1.tar.zip' to extract fabric images
2. Need to import fabric images （Keep the below file with same folder with "fabric_images_v0.6.1.tar"）by following steps:
### (Mac/Linux)
open Terminal and execute the file: * fabric_import.sh * by the commands:
eg:
` ./fabric_import.sh `
### (Windows)
(1) Start Menu at All Apps > Windows System > Run
(2) run command line interface by input: * cmd *
(3) go to the folder you stored the tar file and execute the batch file.
eg:
` ./fabric_import.bat `
` docker images `
(should include 3 images as below:
hyperledger/fabric-membersrvc:x86_64-0.6.1-preview ,
hyperledger/fabric-peer:x86_64-0.6.1-preview ,
fabric_client:v0.6.1
)
(Keep the below file in the current folder)
docker-compose.yml
docker-compose up
run the command
docker ps
(should include 3 containers as below: client_dev_s , peer_dev_s , ca_dev_s)
run the command
docker exec -it client_dev_s /bin/bash
cd $WORKSPACE/apps/DEMO root@xxx:~/workspace/apps/DEMO/startup.sh
- (Mac/Linux) * http://localhost:3000/
- (Windows) * (You can get this IP by command "docker-machine ip default" #Tip2) http://192.168.99.100:3000/
docker exec -it client_dev_s /bin/bash
cd $GOPATH/src/chaincodes/hello
go build
go test
docker exec -it client_dev_s /bin/bash
cd $GOPATH/src/chaincodes/hello/scripts
./startup.sh
docker exec -it client_dev_s /bin/bash
cd $GOPATH/src/chaincodes/hello/scripts
./enroll.sh
./deploy.sh
./invoke.sh
./query.sh
1. If you want to reopen this environment, please open a new terminal and execute command "docker-compose down" in workspace dir and then execute command "docker- compose up".
2. When you open a new terminal in Windows every time, please execute "docker-machine env" to initialize docker environment firstly.
guide: https://github.com/yidlhu/blockchaindemo/blob/master/readme%40bluemix.txt
workspace: https://ibm.box.com/s/dj4p2dzxw02ibvt8ppubigcangzqvk69