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Deprecation Notice

🚨 This repository is deprecated and no longer maintained. 🚨

This project is no longer actively developed or maintained. We recommend using allora-offchain-node as a replacement.

Why is this project deprecated?

The architecture has been improved and simplified, and heads and workers supported by this project are are not compatible.

What should you do?

Thank you to everyone who contributed to this project.

NFT Appraisals worker node

This is an application packaged for being run on the Allora Network. It is an example of a setup for running an Allora Network node for providing NFT appraisals.

Components

  • worker: The node that will respond to requests from the Allora Network heads.
  • head: An Allora Network head node. This is not required for running your node in the Allora Network, but it will help for testing your node emulating a network.

When a request is made to the head, it relays this request to a number of workers associated with this head. The request specifies a function to run which will execute a wasm code that will call the main.py file in the worker. This code will get the NFT appraisal from Upshot API, and returns this value to the head, which prepares the response from all of its nodes and sends it back to the requestor.

docker-compose

A full working example is provided in docker-compose.yml.

Structure

There is a docker-compose.yml provided that sets up one head node and one worker node.

Dependencies

  • Have an available image of the allora-inference-base , and reference it as a base on the FROM of the Dockerfile.
  • Create a set of keys in the keys directory for your head and worker, and use them in the head and worker configuration(volume mapping already provided in docker-compose.yml file). If no keys are specified in the volumes, new keys are created. However, the worker will need to specify the peer_id of the head for defining it as a BOOT_NODES. You can bring head up first, get the key from the container, then use it in the BOOT_NODES. For more information, see how to generate keys.
  • Provide a valid UPSHOT_API_TOKEN env var inside the node/.env file. You can create one here.

Run

Once this is set up, run cd node && docker compose up

Once both nodes are up, a function can be tested by hitting:

curl --location 'http://localhost:6000/api/v1/functions/execute' \
--header 'Content-Type: application/json' \
--data '{
    "function_id": "bafybeihvikwjuqtijpurgsyiv5uwmmzg7ksibcwx6s3gjmkneasdn5kndy",
    "method": "nft-appraisals-inference.wasm",
    "parameters": null,
    "topic": "1",
    "config": {
        "env_vars": [
            {
                "name": "BLS_REQUEST_PATH",
                "value": "/api"
            },
            {
                "name": "ALLORA_ARG_PARAMS",
                "value": "0x42069abfe407c60cf4ae4112bedead391dba1cdb/2921"
            }
        ],
        "number_of_nodes": -1,
        "timeout": 2
    }
}'

The response will look like:

{
  "code": "200",
  "request_id": "0a6c4c9b-e55d-4ef5-a95f-b23d8747fd03",
  "results": [
    {
      "result": {
        "stdout": "{\"value\": \"432940000000000000\"}\n\n",
        "stderr": "",
        "exit_code": 0
      },
      "peers": [
        "12D3KooWEdenoKzrpCVD5D98Qt6vxgFdEDHLRGSKnnCXR49PQsbp"
      ],
      "frequency": 100
    }
  ],
  "cluster": {
    "peers": [
      "12D3KooWEdenoKzrpCVD5D98Qt6vxgFdEDHLRGSKnnCXR49PQsbp"
    ]
  }
}

Connecting to the Allora network

In order to connect to an Allora network to provide inferences, both the head and the worker need to register against it. The following optional flags are used in the command: section of the docker-compose.yml file to define the connectivity with the Allora network.

--allora-chain-key-name=nft-appraisals-provider  # your local key name in your keyring
--allora-chain-restore-mnemonic='pet sock excess ...'  # your node's Allora address mnemonic
--allora-node-rpc-address=  # RPC address of a node in the chain
--allora-chain-topic-id=  # The topic id from the chain that you want to provide predictions for

In order for the nodes to register with the chain, a funded address is needed first. If these flags are not provided, the nodes will not register to the appchain and will not attempt to connect to the appchain.

GitHub actions

build_push_ecr - Build and push docker images to ECR registry

  • Name of the ECR registry is the same as the GitHub repo name.
  • The GH action will build a new docker image from PRs and pushes to the main branch.
  • All images tagged with $GIT_SHA and dev-latest tags.
  • If image built from main branch, then it will also have tagged with latest tag.