Show latests blocks in eth 2.0

latest-blocks.py

#!/usr/bin/env python

from eth2spec.phase0 import spec
import requests
import json
#import sys, getopt
import base64

#The base address of the beacon-node
base_url = 'http://localhost:3501/eth/v1alpha1/'

#Prysm's API calls
blocks_endpoint = "beacon/blocks"
chainhead_endpoint = "beacon/chainhead"

def print_epoch(epoch):

    #Get this epoch's blocks
    query = "?epoch=%d" % (epoch)
    headResp = requests.get(base_url+blocks_endpoint+query) 
    data = headResp.content.decode()
    resp_json = json.loads(data)
    containers = resp_json["blockContainers"]
    containers.reverse()

    for c in containers :
        block = c["block"]["block"]
        slot = int(block["slot"])
        proposer = int(block["proposerIndex"])
        body = block["body"]
        graffiti_temp = base64.b64decode(body["graffiti"])
        graffiti = graffiti_temp.decode('utf8')
        attestations = len(body["attestations"])
        deposits = len(body["deposits"])
        exits = len(body["voluntaryExits"])
        proposerSlashings = len(body["proposerSlashings"])
        attesterSlashings = len(body["attesterSlashings"])
        print("%8d%10d%10s%8d%5d%3d/%-3d%5d%20s" % (epoch, slot, proposer,
                                                    attestations, deposits,
                                                    proposerSlashings,
                                                    attesterSlashings,
                                                    exits,  graffiti))


def main():
    
    #Get chainhead
    response = requests.get(base_url+chainhead_endpoint)
    data = response.content.decode()
    chainhead = json.loads(data)
    epoch = int(chainhead['headEpoch'])
    
    print("   Epoch      Slot  Proposer     Att  Dep Slsh           Graffiti") 
    print_epoch(epoch)
    print_epoch(epoch-1)

if __name__  == "__main__":
    main()