DAML-Covid19

Link to Google Doc for more information about the Covid19 Model using DAML

https://docs.google.com/document/d/1AdekheWp4MGCXcCUA7thlD_u6XDi-yA3HvEB288owJY/edit#

Installation instructions

Step1 : Building and installing DAML Postgress

install DAML SDK (currently 1.14) For more information :https://docs.daml.com/getting-started/installation.html
install Postgress for local persistance layer with daml For more information : Setup a new DB: 'test' Setup a Postgress User: 'Bart' with password: 'password'

note: when you create a new daml file then 'delete database' and recreate it

Build locally .dar file

daml build

note: if you are rebuilding, then deleted first your .daml and daml2js folders

UX code generation:

daml codegen js -o daml2js .daml/dist/Covid19-0.0.1.dar

Change to ui-js directory
```
Cd ui-js directory
```
Install User interface code
```
yarn install --force --frozen-lockfile
```

Step 2B : Deploying DAML with Initialization script

DAML Script

We created an onboarding script in /Scriptfile folder calledScriptExample.dam

Run Script

To initialize the network You can call: 

daml script --dar .daml/dist/Covid19-0.0.1.dar --script-name ScriptExample:initializeFixed --ledger-host localhost --ledger-port 6865

Step 2A : Deploying DAML and UX in local environment

Start DAML Sandbox in a new console window

daml sandbox .daml/dist/Covid19-0.0.1.dar --ledgerid Covid19 --sql-backend-jdbcurl "jdbc:postgresql://localhost/test?user=Bart&password=password"

Make Static Content sub-directory
```
mkdir static-content
```
Start JSON-API in a new console window

daml json-api --ledger-host localhost --ledger-port 6865 --http-port 7575 --max-inbound-message-size 4194304 --package-reload-interval 5s --application-id HTTP-JSON-API-Gateway --static-content "prefix=static,directory=./static-content" --access-token-file ./token/token --query-store-jdbc-config "driver=org.postgresql.Driver,url=jdbc:postgresql://localhost:5432/test?&ssl=false,user=Bart,password=password,createSchema=false"

This now links to token authorization file which can be found in ./token directory

The token file must include the correct JWT token

"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJodHRwczovL2RhbWwuY29tL2xlZGdlci1hcGkiOnsibGVkZ2VySWQiOiJDb3ZpZDE5IiwiYXBwbGljYXRpb25JZCI6ImZvb2JhciIsImFjdEFzIjpbIk9wZXJhdG9yIl0sInJlYWRBcyI6WyJPcGVyYXRvciJdfX0.JklciDh0-GzkvrPkSJ_H3sYX39LFU4C3uVWd7qsMPNo"

Note: In order to be able to retrieve filtered contracts through the JSON-API a new Schema must be created. To achieve this, execute the following command before making any transactions in the ledger

After the command has completed, then you can start up the JSON-API the regular way:

Start Frontend and Backend solution in a new console window in ui-js directory

cd ui-js

Verify the authentication token in the following file scr/context/UserContext.js

                        "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJodHRwczovL2RhbWwuY29tL2xlZGdlci1hcGkiOnsibGVkZ2VySWQiOiJDb3ZpZDE5IiwiYXBwbGljYXRpb25JZCI6ImZvb2JhciIsImFjdEFzIjpbIk9wZXJhdG9yIl0sInJlYWRBcyI6WyJPcGVyYXRvciJdfX0.JklciDh0-GzkvrPkSJ_H3sYX39LFU4C3uVWd7qsMPNo"

yarn run start

Initiation of a Local Network

The network can be initiate with pushing a JSON file via Postman

1. Download and install Postman

2. Authentication:

bearer token :  "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJodHRwczovL2RhbWwuY29tL2xlZGdlci1hcGkiOnsibGVkZ2VySWQiOiJDb3ZpZDE5IiwiYXBwbGljYXRpb25JZCI6ImZvb2JhciIsImFjdEFzIjpbIk9wZXJhdG9yIl0sInJlYWRBcyI6WyJPcGVyYXRvciJdfX0.JklciDh0-GzkvrPkSJ_H3sYX39LFU4C3uVWd7qsMPNo"

3. Send Post instruction 

POST localhost:7575/v1/create

Body:

{
         "templateId": "Main:Network",
         "payload": {
           "operator": "Operator"
         }
}

4. You can verify the Network via login in as "Operator" and navigating to the Network left NavBar

Step 2B : Deploying DAML to ProjectDable

Deploy DAML Dar file to ProjectDable

More instrictions can be found here: https://docs.projectdabl.com/quickstart/#home

Generate new JWT Token for "Operator

On the Managment Console create Operator as Party
Select the JWT token for Operator

Note: This token changes daily and therefore the new token needs to be updated daily in the source code

Update the Token in the UserContext.js file

// ProjectDable Token for Operator
   token  = <JWT Token Here>

Build and zip up the UI code in ui-js directory
```
yarn build
zip -r ../covid19xxx-ui.zip build
```
Upload and deploy the covid19xxx-ui.zip file to projectdable and the ledger
Launch the browser based on the projectdable ledger link
```
example: https://<ledger-id>.projectdabl.com/#/login
```

Setup the initial Contract as Live Data

Goto https://<ledger-id>.projectdabl.com/#/livedata

Select Operator and a new Contract

Select Newtork COntract with Operator = Operator

Note : this creates the starting contract for the Network

https://<ledger-id>.projectdabl.com/#/login

enter Operator as "Login" and Enter
Navigate to the Network screen and you should see a first Contract in the list screen

3A Configuration for Local Node.js Trinsic Server

For any intgertaion with Trinsic you have 2 options: a locl Node.js server or a hosted AWS Node.js server on EC2

Local Node.js Server the following local Node.js server files must be available

ui-js/server.js ui-js/.env Note: This file will be provided seperatly ui-js/scr/AxiosClient.js baseURL: 'http://localhost:3002/'

Validate that the Node.js server is stared locally

in package.json the following entries must be available in "script"

"start": "run-p server frontend",
"server": "node server.js --exec nodemon",

also can validate using ngrok.io where can be found upon startup of the node.js server

3B Configuration for Trinsic Server hosted on AWS

AWS Server Note : local EC2 instance and Loadbalancer must be started

Source Code can be found at https://github.com/bartcant/TrinsicServer

The following configuration must be updated

ui-js/scr/AxiosClient.js
```
baseURL: 'https://daml-covid19.vcredserver.com/'
```

For quick reference on DAML:

https://digital-asset.github.io/daml-cheat-sheet/ https://docs.daml.com/1.1.1/ https://docs.daml.com/1.1.1/json-api/index.html

AWS Cognito

Set up Pool Id, App client id in ui-js/src/config.js

Init Script Running

daml script --dar .daml/dist/Covid19-0.0.1.dar --script-name ScriptExample:initializeFixed --ledger-host localhost --ledger-port 6865

python bot

Install Python 3.0 Install Poetry

curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python

pip install -r requirements.txt

deployment bot

make setup

run bot

python python_bot/bot.py

bartcant / DAML-Covid19

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