I am using flask and web3.eth and connecting to a contract, but am having issues returning a value for one of the smart contract functions. No errors are being logged. I have placed several print statements to see where the app is stopping and found that it stops when I call a smart contract function.
Also I should mention that I am able to run this exact code locally without issues.
This is the function that is most likely failing:
def getDataFromTokenID(tokenid, contract):
print('getting uri')
uri = contract.functions.tokenURI(tokenid).call() # This is where it stops printing
print('PRINT:',uri)
html = requests.get(uri)
name, img_url = html.json()['name'], html.json()['image']
code = name[-5:]
return name, img_url, code
The function above is called in the following blueprint:
@TokenInfo.route('/rarity/<int:tokenid>', methods=['GET'])
def sendTokenInfo(tokenid):
contract_address = ' ' # left empty for posting purposes
w3 = Web3(Web3.WebsocketProvider(' ')) # left empty purposefully as well
contract = w3.eth.contract(address=contract_address, abi=contract_abi.abi)
model = Shape_classifier()
model.load_state_dict(load(os.getcwd()+'/mysite/app/state_dict.pth'))
uri = current_app.config['MONGO_URI']
mongo.init_app(current_app, uri)
gs = mongo.db.gantomstone_info
try:
id_exists = [{"$match": {'_id': tokenid}}, {"$count": "count"}]
list(gs.aggregate(id_exists))[0]
except:
print('getting data from token id')
name, img_url, serial = getDataFromTokenID(tokenid, contract) ## Stops printing here
print('opening image')
img = Image.open(requests.get(img_url, stream=True).raw)
shape = getImageShape(img, model)
colors = getColors(getCounts(img))
rgb_count = getCounts(img)
serialTF = getCodeInfo(serial)
to_db = {'_id': tokenid, 'name': name, 'img_url': img_url, 'serial': serial,
'shape': shape, 'colors': colors, 'serialTF': serialTF, 'rgb_count': rgb_count}
gs.insert_one(to_db)
rarity = getRarity(gs, tokenid)
gs.update_one({'_id': tokenid}, {
'$set': {'rarity_values': rarity}}, upsert=True)
to_json = list(gs.find({'_id': tokenid}))[0]
return jsonify(to_json)
I have tried moving contract address around (out of TokenInfo view function and into the functions file) to no avail. I have also tried changing the function inputs to receive the get request args which made no difference either.
If anyone has any idea how to get this working that would be amazing and I would be very grateful.
Thank you.