I Failed the Turing Test

vinta.ws

I Failed the Turing Test

When in doubt, overengineer.

  1. Updated

    Demystifying Solidity ABI Encoding

    Category: Blockchain

    There are many encode functions in Solidity: abi.encode(), abi.encodePacked(), abi.encodeWithSignature(), and abi.encodeCall(). Which one to use, and when.

  2. Updated

    Build Docker Images using Google Cloud Build from Your GitHub Repository

    Category: DevOps

    Triggering a Docker image build on Google Cloud Build when pushing commits to a GitHub repository.

  3. Updated

    Solidity: Read Contract Storage by Slots with Foundry

    Category: Blockchain

    State variables are stored in different "slots" in a contract, and each slot is 32 bytes (256 bits). However, multiple adjacent state variables declared in the contract may be packed into the same slot by the Solidity compiler if their combined size does not exceed 32 bytes.

  4. Updated

    Surviving the Digital Dark Forest: Tips for Staying Safe Online

    Category: Misc

    How I learned to "start worrying" and to embrace the illusion of safety.

  5. Updated

    Solidity: CREATE vs CREATE2

    Category: Blockchain

    How to deploy a contract using `CREATE2` which is introduced in EIP-1014 to provide more flexible address generation.

  6. Updated

    Solidity: calldata, memory, and storage

    Category: Blockchain

    If you can, try to use calldata as data location because it will avoid copies, reduce gas usage, and also make sure that the data cannot be modified.

  7. Updated

    hardhat-deploy: Upgradeable Contracts with Linked Libraries

    Category: Blockchain

    Whenever the library is changed, hardhat-deploy will deploy a new implementation and upgrade the proxy.

  8. Updated

    Deploy Ethereum RPC Provider Load Balancer with HAProxy in Kubernetes (AWS EKS)

    Category: Blockchain, DevOps

    Put a HAProxy load balancer in front of multiple Ethereum RPC providers, and adjust traffic weights by the latency and block timestamp of each endpoint.

  9. Updated

    Deploy graph-node (The Graph) in Kubernetes (AWS EKS)

    Category: Blockchain, DevOps

    Two ways to run a self-hosted graph-node on Amazon EKS: a single node with one PostgreSQL database, or a cluster with a primary-secondary PostgreSQL cluster.

  10. Updated

    Amazon EKS: Setup Cluster Autoscaler

    Category: DevOps, Web Development

    Cluster Autoscaler adjusts the number of nodes when pods fail to schedule. Here we deploy the AWS implementation on Amazon EKS.