Lesson 11: create_metadata.py - No IPFS URL returned

[toddabraham]

After running my create_metadata.py script, I'm not getting an IPFS URL returned, but there's no error.

todd@fcc-blockchain-dev:~/fcc_blockchain_dev/nft-demo$ brownie run scripts/advanced_collectible/create_metadata.py --network rinkeby
Brownie v1.16.4 - Python development framework for Ethereum

NftDemoProject is the active project.

Running 'scripts/advanced_collectible/create_metadata.py::main'...
You have created 1 collectibles!
Creating Metadata file: ./metadata/rinkeby/0-ST_BERNARD.json
{'name': 'ST_BERNARD', 'description': 'An adorable ST_BERNARD pup!', 'image': '', 'attributes': [{'trait_type': 'cuteness', 'value': 100}]}
todd@fcc-blockchain-dev:~/fcc_blockchain_dev/nft-demo$ brownie run scripts/advanced_collectible/create_metadata.py --network rinkeby
Brownie v1.16.4 - Python development framework for Ethereum

NftDemoProject is the active project.

Running 'scripts/advanced_collectible/create_metadata.py::main'...
You have created 1 collectibles!
Creating Metadata file: ./metadata/rinkeby/0-ST_BERNARD.json
{'name': 'ST_BERNARD', 'description': 'An adorable ST_BERNARD pup!', 'image': '', 'attributes': [{'trait_type': 'cuteness', 'value': 100}]}

from brownie import AdvancedCollectible, network
from scripts.helpful_scripts import get_breed
from metadata.sample_metadata import metadata_template
from pathlib import Path
import requests


def main():
    advanced_collectible = AdvancedCollectible[-1]
    number_of_advanced_collectibles = advanced_collectible.tokenCounter()
    print(f"You have created {number_of_advanced_collectibles} collectibles!")
    for token_id in range(number_of_advanced_collectibles):
        breed = get_breed(advanced_collectible.tokenIdToBreed(token_id))
        metadata_file_name = (
            f"./metadata/{network.show_active()}/{token_id}-{breed}.json"
        )
        collectible_metadata = metadata_template
        if Path(metadata_file_name).exists():
            print(f"{metadata_file_name} already exists! Delete it to overwrite")
        else:
            print(f"Creating Metadata file: {metadata_file_name}")
            collectible_metadata["name"] = breed
            collectible_metadata["description"] = f"An adorable {breed} pup!"
            print(collectible_metadata)
            image_path = "./img/" + breed.lower().replace("_", "-") + ".png"
            # image_uri = upload_to_ipfs(image_path)
            # collectible_metadata["image"] = image_uri


def upload_to_ipfs(filepath):
    with Path(filepath).open("rb") as fp:
        image_binary = fp.read()
        ipfs_url = "http://127.0.0.1:5001"
        endpoint = "/api/v0/add"
        response = requests.post(ipfs_url + endpoint, files={"file": image_binary})
        ipfs_hash = response.json()["Hash"]
        filename = filepath.split("/")[-1:][0]
        image_uri = f"https://ipfs.io/ipfs/{ipfs_hash}?filename={filename}"
        print(image_uri)
        return image_uri

[PatrickAlphaC]

You're not running upload_to_ipfs, since you have it commented out:

# image_uri = upload_to_ipfs(image_path)

You need to run that to get an image URI

[toddabraham]

Thank you @PatrickAlphaC !