3 : Environment preparation

Previous2 : Basic Concepts Next4 : Issue and Mint Asset in Stellar.

Last updated 1 year ago

3 : Environment preparation

Token Playground Chapter 3 : Environment preparation

Check this guide in
Edit this guide in it's repo:
Contribute to this guide in the of the repo

Introduction:

In this chapte we will prepare our system in order to use this Playground. You need to have Docker installed in your system, configure at least 2 stellar accounts, and edit the settings.js file.

Remember to follow the code in the . Also, you can clone the code by doing

git clone https://github.com/esteblock/token-playground/

Also you'll need to install the node packages:

yarn

1. Configure Docker

Here we detail the steps to follow in order to configure your Docker envirenoment:

Install Docker in your system.
Create a common docker network
Run a docker container with the esteblock/soroban-preview image, that includes soroban cli, rust and other tools that this uses
Run a docker container with the stellar/quickstart image, that provides a local stellar and soroban node

1.1. Install Docker in your system

1.2. Create a common docker network (only once)

Establishing a shared Docker network will enable seamless communication between the two Docker containers that we are about to create in the following steps.

Here we will name this network as soroban-network, but you can choose the name you want. You can create this network by:

docker network create soroban-network

1.3. Run a soroban-preview docker container:

cd token-playground
currentDir=$(pwd)
docker run --volume  ${currentDir}:/workspace \
           --name soroban-preview-10 \
           --interactive \
           --tty \
           -p 8001:8000 \
           --detach \
           --ipc=host \
           --network soroban-network \
           esteblock/soroban-preview:10

Here we used the flag --network soroban-network, so any other container in the same network can call each other just using its name. In this case, this container's name is soroban-preview-10

1.4.- Run a stellar/quickstart docker container

Stellar provides a docker image that contains an stellar node including Soroban, an stellar core program and the horizon server. You can initialize the node as standalone (transactions will not be synced to the network), futurenet (transactions will be synced to futurenet network), or mainnet.

You can run this container by doing:

docker run --rm -ti \
  --platform linux/amd64 \
  --name stellar \
  --network soroban-network \
  -p 8000:8000 \
  stellar/quickstart:soroban-dev@sha256:8a99332f834ca82e3ac1418143736af59b5288e792d1c4278d6c547c6ed8da3b \
  standalone \
  --enable-soroban-rpc \
  --protocol-version 20

Then, if the soroban-preview-10 containter want's to call the RPC of the stellar container, it can use the following RPC URL

http://stellar:8000

1.4. Use the Playground code

./quickstart.sh standalone

2. Configure Two Stellar Accounts

2.1. Get two new accounts from the Stellar Laboratory

You will need two stellar accounts to use this token playground. The first one will be the receiver address, responsible of creating and issuing Stellar Assets, the second one wiil be the destination address that will need to create a trustline to the asset and then will receive the tokens.

2.2. Configure settings.js

{   "issuerSecret": "SAHC723FQTC3MARBNUZLUFEIYI62VQDQH7FHLD2FGV6GROQQ7ULMHQGH",   
    "issuerPublic": "GAM5XOXRUWPMKENBGOEAKMLRQ4ENHLHDSU2L2J7TVJ34ZI7S6PHMYIGI",    
    "receiverSecret": "SBFJKSFA5YK2SUAVVSMEKDA44MYCBFSNNAORJSO7J437HJWU6G7SGAVF",
    "receiverPublic": "GDGYEYETZ2AWW3M3XUEAZN7LZPCL4BTKROEDE5LLOU6GTJRNG4FX3IEQ",
    "thirdParty": "GBIZQR4QEOFHONNJAC72H2TYTMINJXNQ4J63VGCKT2X5VMJ4IQE3OWZM", 
    "assetCode": "MYASSETCODE", // assset code of the asset issued
    "horizonUrl": "http://stellar:8000", //url to request horizon api
    "networkPassphrase": "Standalone Network ; February 2017", 
    "amount": "5", //amount will be issued in asset creation
    "limit": "1000"  //limit ammount to  receive
}

Here, you need to edit:

For the issuer account: issuerSecret and issuerPublic
For the receiver account: receiverSecret and receiverPublic.

thirdParty will be configured later... or you can leave it like this

2.3. Fund your accounts

Stellar accounts need to be funded wit at least 1 XLM before existing. Stellar provide the friendbot utility that can fund test networks like futurenet.

If you already have your stellar/quickstart docker container, because it's sharing its 8000 port, you can call the Friendbot by doing

TOKEN_ADMIN_ADDRESS="GCUA5RTRR4N4ILSMORG3XFXJZB6KRG4QB22Z45BUNO5LIBCOYYPZ6TPZ"
FRIENDBOT_URL="http://localhost:8000/soroban/rpc/friendbot"
curl --silent -X POST "FRIENDBOT_URL?addr=TOKEN_ADMIN_ADDRESS" >/dev/null

If you want to call this from the soroban-preview-10 docker container, be sure to change http://localhost:8000 to http://stellar:8000 because the two docker container are using the same docker network and can be called by their name. You can also use https://friendbot-futurenet.stellar.org/ in case your request is to the futurenet directly.

2.4. Use our code

docker exec soroban-preview-10 node src/friendbot.js

import fetch from 'node-fetch'
import settings from "../settings.json"  assert { type: "json" };

await fetch( settings.horizonUrl+'/friendbot?addr='+settings.issuerPublic, {method: 'POST'})
await fetch( settings.horizonUrl+'/friendbot?addr='+settings.receiverPublic, {method: 'POST'})

3. Next

Previous2 : Basic Concepts Next4 : Issue and Mint Asset in Stellar.

Last updated 1 year ago