Holdr instructions

Prerequisites

• graph-cli => sudo yarn global add @graphprotocol/graph-cli
• GraphQL Hosted Service Account
  • Create by linking Github account
  • Authenticate your local to deploy to your GraphQL account with graph auth <PROVIDED_AUTH_KEY>

Steps

Change Vault and InvestmentPoolFactory addresses in the following files

• ./networks/yaml

  • Need to fill in an address for 'WeightedPoolFactory' and 'WeightedPool2TokenFactory' fields, to support 'InvestmentPoolFactory'. But looks like these addresses don't need to correspond to an actual deployed WeightedPoolFactory or WeightedPool2TokenFactory.

• src/mappings/helpers/constants.ts - Add new network to AddressByNetwork class, add network address for vaultAddressByNetwork and ...AddressByNetwork classes, and add network to forNetwork function

yarn codegen => Generates required development files including types for every Contract and object (the .ts files in src/mappings are not Typescript, but AssemblyScript which is more type-strict than Typescript. AssemblyScript is then compiled to Web Assembly in the build).

yarn build => Builds subgraph into ./dist folder

graph deploy --product hosted-service <REPO_NAME/GRAPH_NAME> subgraph.<NETWORK>.yaml => Build and deploy subgraph to specified Hosted Service project

Debugging

Good old console.log is not compatible with AssemblyScript files. Use log API - https://thegraph.com/docs/en/developer/assemblyscript-api/#logging-api

Documentation mentions forking your deployed subgraph, to a local Graph node, and speeding up the development process that way. Did not do this as it seemed bulky (mentions an 8GB RAM requirement somewhere) to do this.

Test GraphQL query (using Subgraph playground)

{
  swaps(first: 100) {
    tokenIn,
    tokenOut,
    tokenAmountIn,
    tokenAmountOut,
    tx,
    timestamp,
    userAddress {
      id
    }
  }
}

{
  balancers(first: 5) {
    id
    poolCount
    totalLiquidity
  }
  pool(id: "0x8b021079eed6eea7a495369f70374272dc1a8311000100000000000000000013") {
    totalLiquidity
  }
}

Example code to build and send query to GraphQL API point in scripts/check_subgraph_health.ts

---

Balancer Subgraph

The graphql schema is still under heavy development and will likely have major breaking changes.

This repo tracks both the subgraph and a docker configuration that allows you to run the subgraph and frontend against the core v2 contracts.

Setup

Prerequisites

• Global Yarn Packages
  • truffle
  • graph-cli
• Docker

Clone the pool-management-v2 repo and core repo submodules

Recommended setup: Running V2 contracts, frontend and subgraph against development parity chain

Docker compose can be started in various configurations to start a local etherem chain, a graph-node, and it's requisite services.

Start a parity chain and a graph node by running

yarn restart:parity

Then deploy V2 contracts, seed data and deploy subgraph

cd core && yarn redeploy:docker && popd
yarn codegen && yarn create:local && yarn deploy:local

now you should be able to interact with the graphql server at http://localhost:8000/subgraphs/name/balancer-labs/balancer-v2

Start the pool management frontend:

cd pool-management-v2 && yarn serve

Once setup, you can access the services at the addresses below

Services

Service	address
JSON-RPC Server	http://localhost:8545
GraphQL HTTP server	http://localhost:8000
Graph Node JSON-RPC admin server	http://localhost:8020
Graph Node IndexNode server	http://localhost:8030
Graph Node Metrics server	http://localhost:8040
Graph Node WebSocket server	ws://localhost:8001

Alternative Docker Compose Settings

Running services against a hardhat chain

The docker-compose can be overridden to test contracts, subgraph, frontend against other networks. This is not generally recommended because the hardhat VM doesn't support call tracing which the subgraph uses to track contract calls. YMMV

Start a hardhat chain and a graph node by running

docker-compose -f docker-compose.yml -f docker-compose.hardhat.yml up

Start a ganache chain and a graph node by running

docker-compose -f docker-compose.yml -f docker-compose.ganache.yml up

To blow away graph-node settings

docker-compose kill && docker-compose rm -f && rm -rf data

Components

Contracts

Deploy balancer contracts using truffle. Using the yarn deploy script in balancer-v2 also makes this easy to test out the subgraph using the frontend.

Subgraph

Clone the balancer subgraph

git clone [email protected]:balancer-labs/balancer-subgraph-v2.git

Update deployed contract address in subgraph.yaml to the ones listed as part of the deploy

Install dependencies

yarn

Generate the graph code

yarn codegen

Create local node

yarn create:local

Deploy locally

yarn deploy:local

Any updates can be made to this repo and re-running yarn deploy:local without needing to re-initialize the environment.

Running Locally With Parity Kovan Node

Start Parity:

parity --chain=kovan --jsonrpc-interface=0.0.0.0

Update ethereum value in docker-compose.yml to kovan:http://host.docker.internal:8545

Comment out try_ functions in pool.ts LN52-64

docker-compose up

Create local node

yarn create:local

Deploy locally

yarn deploy:local