FLOW - Technical details

TODO

• Logs
  • Proper implementation is missing
• Metrics
  • Proper collection is missing
• Alerts
  • Define proper vector playbook
    • This can also serve chain health service, new contract flow can be the blueprint
• State Producer App - Bookkeeping
  • Planned - Sled (Embedded)
• DFS Backup
  • Depends on data availability wg -- Currently unimplemented
• FVM Explorer API
  • Auth
    • Plan is to have IDP that unifies auth needs over all products
    • Address Verify
  • Source Code
    • Upload
    • Method Mapping
    • Params + Return deserializer (based on source code)
    • Contract interaction (method calling from API)
  • Bytecode analyzer and metadata extract -- Abandoned due to low value
• Containerize apps
  • State Producer app Dockerfile
  • New Contract Consumer app Dockerfile
  • Fvm Explorer API app Docker File
• Lotus docker file
  • https://github.com/jimpick/lotus-fvm-localnet

Notes about Testnet

Currently, we are building on Wallaby testnet, for setup, follow instructions

Setup

• Follow instructions from https://kb.factor8.io/en/docs/fil/wallabynet

Network reset

Lotus

steps:

1. stop lotus daemon
2. rm lotus repo
3. rm ~/.lotus
4. clone repo (checkout experimental)
5. make wallaby
6. make install-daemon-service
7. systemctl start lotus-daemon

Usage

State App

Dependencies:

• Lotus
• Sled (Bookkeeping embedded DB) TODO

Stack

• Rust

Commands

• Start (standalone)

cargo run

• Start with Vector (some playbook examples are in vector dir)

cargo run | sudo vector --config vector/vector-all.toml

New Contract Listener

Dependencies:

• Lotus
• Kafka
• Clickhouse

Stack

• Rust

Commands

• Start (standalone)

cargo run --bin contract_listener

FVM Explorer API

Dependencies:

• Lotus
• Kafka
• Clickhouse
• Postgres

Stack

• Rust

Commands

• Start (standalone)

cargo run --bin fvm_explorer_api

Docker

There are two docker-compose files

Root

• Main docker-compose file used for project min dependencies

Fvm Explorer API

• docker compose with API dependencies

Overall Architecture

Components

• State Producer (Rust bin)

  State Producer App

  • General Notes

    • Responsible for:
      • Decoding Messages (with respective sub calls)
      • Decoding Blocks
      • Resolving Actors (addresses)
    • Tech Stack
      • Rust
    • External Dependencies
      • Lotus
      • Sled (Bookkeeping embedded DB)

  • Diagrams

    

  • Compute State

    • Resolve Height
    • Resolve block details
    • Dependent on Lotus state compute, resolves block messages and sub calls

  • Enrich Data

    • Enriches Data
      • Message → Address Resolution → FlowMessage
      • Block → FlowBlock

  • Sync (emit)

    • Walks collected data and emits to stdout in JSON format

• Data Observability Pipeline (Vector.dev)

  Data Observability Pipeline

  • General Notes

    • Responsible for:
      • Parsing State App output
      • Branching Data flows via Filters
      • Remapping Data into an expected output format
      • Batch syncing data to output sources
    • Tech Stack
      • Vector.dev
    • External Dependencies
      • Input Sources
        • StateApp
      • Sync Targets
        • Clickhouse
        • Kafka
        • DFS

  • Diagrams

    

  • Playbooks

    Playbooks are vector configs files, utilizing Vector Remap Language (VRL)

  • Input

    • Connects to State Producer app stdout

  • Transform

    • Parse

      • Parses the data into objects that can be processed with VRL

    • Filter

      In a filter stage, data flow is branching based on predicate functions. From this point, parsed input data is segregated into:

      • Blocks
      • Messages
        • ContractInit Message (sub-branch)
      • App Logs
      • Metrics

    • Remap

      Remap Phase is where data is prepared for the sync phase

      • Message → Clickhouse Table Data
      • Block → Clickhouse Table Data
      • Message → Kafka (new_contract) Payload
      • Metrics → essential metrics payload

  • Sync

    • Messages
      • Batch insert messages to Clickhouse
      • Batch save messages to DFS
        • height/ block/ message_cid/ data.json sub_calls/ message_cid.json
    • Blocks
      • Batch insert Blocks to Clickhouse
      • Batch save block on DFS height/block
    • Logs
      • Sync to Loki
    • Metrics
      • Sync to Prometheus

  • Datasources

    • Clickhouse
      • Tables
        • Transactions
        • Contracts
      • Materialized Views
        • ContractTransactions
    • Kafka
      • Topics
        • new_contract
    • DFS
      • Archival sync

• New Contract Listener (Rust bin)

  New Contract Listener

  • General Notes

    • Responsible for:
      • Analyzing Flagged Transaction
      • Resolve Contract Details
      • Store New Contract
    • Tech Stack
      • Rust
    • External Dependencies
      • Kafka
      • Clickhouse

  • Diagrams

    

  • Parse Flagged Message

    • Once a message is flagged as contract initializer, app analyzes message return information. If information is valid message, it is passed to details resolution

  • Resolve Contract details

    • EFVM
      • Resolve message data (future contract addresses, owner, status…)
    • WASM
      • Resolve message data (contract actor addresses, owner, status…)

  • Sync Contract

    • Once details are resolved contract data is inserted into Clickhouse

• FVM Explorer API (Rust bin)

  • General Notes

    • Responsible for:
      • Providing Search APIs
        • Transactions
        • Blocks
        • Contracts
        • Projects
      • Address Verifier
      • Contract Interaction API
      • Auth
    • Tech Stack
      • Rust
    • External Dependencies
      • Clickhouse
      • Postgres
      • Lotus

  • Diagrams

    

  • Search API (public)

    • Search transactions by cid, block, actor_address
    • Search Contracts By f2 address, f4 address, Eth Address, actor_id, owner
    • Search Blocks by Cid
    • Search Projects by name, id, owner

  • Address verifier (public)

    • Provides address verification api

  • Auth (internal)

    • Provides user apis

  • Contract Interaction API (semi-public)

    • Download Abi
    • Download bytecode
    • Upload Source
    • Invoce method

  • Platform Database

    • Postgres
      • Accounts
      • Projects

  • Magic Auth

    • Passwordless Auth

• FVM Explorer UI (Next.js)