forked from cerc-io/stack-orchestrator
158 lines
3.6 KiB
Markdown
158 lines
3.6 KiB
Markdown
# ERC20 Watcher
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Instructions to deploy a local ERC20 watcher stack (core + watcher) for demonstration and testing purposes using [stack orchestrator](/README.md#install)
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## Setup
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Clone required repositories:
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```bash
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laconic-so setup-repositories --include cerc-io/go-ethereum,cerc-io/ipld-eth-db,cerc-io/ipld-eth-server,cerc-io/watcher-ts
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```
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Build the core and watcher container images:
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```bash
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laconic-so build-containers --include cerc/go-ethereum,cerc/go-ethereum-foundry,cerc/ipld-eth-db,cerc/ipld-eth-server,cerc/watcher-erc20
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```
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This should create the required docker images in the local image registry.
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Deploy the stack:
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```bash
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laconic-so deploy-system --include ipld-eth-db,go-ethereum-foundry,ipld-eth-server,watcher-erc20 up
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```
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## Demo
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Find the watcher container's id using `docker ps` and export it for later use:
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```bash
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export CONTAINER_ID=<CONTAINER_ID>
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```
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Deploy an ERC20 token:
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```bash
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docker exec $CONTAINER_ID yarn token:deploy:docker
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```
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Export the address of the deployed token to a shell variable for later use:
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```bash
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export TOKEN_ADDRESS=<TOKEN_ADDRESS>
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```
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Open `http://localhost:3002/graphql` (GraphQL Playground) in a browser window
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Connect MetaMask to `http://localhost:8545` (with chain ID `99`)
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Add the deployed token as an asset in MetaMask and check that the initial balance is zero
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Export your MetaMask account (second account) address to a shell variable for later use:
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```bash
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export RECIPIENT_ADDRESS=<RECIPIENT_ADDRESS>
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```
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To get the primary account's address, run:
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```bash
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docker exec $CONTAINER_ID yarn account:docker
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```
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To get the current block hash at any time, run:
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```bash
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docker exec $CONTAINER_ID yarn block:latest:docker
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```
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Fire a GQL query in the playground to get the name, symbol and total supply of the deployed token:
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```graphql
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query {
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name(
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blockHash: "LATEST_BLOCK_HASH"
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token: "TOKEN_ADDRESS"
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) {
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value
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proof {
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data
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}
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}
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symbol(
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blockHash: "LATEST_BLOCK_HASH"
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token: "TOKEN_ADDRESS"
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) {
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value
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proof {
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data
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}
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}
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totalSupply(
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blockHash: "LATEST_BLOCK_HASH"
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token: "TOKEN_ADDRESS"
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) {
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value
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proof {
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data
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}
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}
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}
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```
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Fire the following query to get balances for the primary and the recipient account at the latest block hash:
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```graphql
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query {
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fromBalanceOf: balanceOf(
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blockHash: "LATEST_BLOCK_HASH"
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token: "TOKEN_ADDRESS",
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# primary account having all the balance initially
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owner: "PRIMARY_ADDRESS"
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) {
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value
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proof {
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data
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}
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}
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toBalanceOf: balanceOf(
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blockHash: "LATEST_BLOCK_HASH"
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token: "TOKEN_ADDRESS",
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owner: "RECIPIENT_ADDRESS"
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) {
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value
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proof {
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data
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}
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}
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}
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```
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- The initial balance for the primary account should be `1000000000000000000000`
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- The initial balance for the recipient should be `0`
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Transfer tokens to the recipient account:
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```bash
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docker exec $CONTAINER_ID yarn token:transfer:docker --token $TOKEN_ADDRESS --to $RECIPIENT_ADDRESS --amount 100
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```
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Fire the above GQL query again with the latest block hash to get updated balances for the primary (`from`) and the recipient (`to`) account:
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- The balance for the primary account should be reduced by the transfer amount (`100`)
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- The balance for the recipient account should be equal to the transfer amount (`100`)
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Transfer funds between different accounts using MetaMask and use the playground to query the balance before and after the transfer.
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## Clean up
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To stop all the services running in background run:
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```bash
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laconic-so deploy-system --include ipld-eth-db,go-ethereum-foundry,ipld-eth-server,watcher-erc20 down
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```
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