Chainlink

Examples

chainlink

In [1]:

from ctc.protocols import chainlink_utils

In [2]:

feed = 'FEI_USD'

Summarize Feed¶

In [3]:

await chainlink_utils.async_summarize_feed(feed)

┌───────────────────────────────────┐
│ Chainlink Feed Summary: FEI / USD │
└───────────────────────────────────┘
- name: FEI / USD
- address: 0x31e0a88fecb6ec0a411dbe0e9e76391498296ee9
- aggregator: 0x1d244648d5a63618751d006886268ae3550d0dfd
- decimals: 8


Recent Updates
──────────────

      value       │  age         │  block     │  timestamp   │  time                  
    ──────────────┼──────────────┼────────────┼──────────────┼────────────────────────
      0.998108    │  15 minutes  │  14662123  │  1651003533  │  2022-04-26 20:05:33Z  
      0.997365    │  1 hours     │  14661863  │  1650999925  │  2022-04-26 19:05:25Z  
      0.995403    │  2 hours     │  14661614  │  1650996330  │  2022-04-26 18:05:30Z  
      0.996719    │  3 hours     │  14661346  │  1650992723  │  2022-04-26 17:05:23Z  
      0.996706    │  4 hours     │  14661090  │  1650989118  │  2022-04-26 16:05:18Z  
      0.99725072  │  5 hours     │  14660817  │  1650985550  │  2022-04-26 15:05:50Z  
      0.99548     │  6 hours     │  14660562  │  1650981933  │  2022-04-26 14:05:33Z  
      0.996838    │  7 hours     │  14660312  │  1650978379  │  2022-04-26 13:06:19Z  
      0.99830072  │  8 hours     │  14660046  │  1650974799  │  2022-04-26 12:06:39Z  
      0.996877    │  9 hours     │  14659806  │  1650971206  │  2022-04-26 11:06:46Z

Get current value of feed¶

In [4]:

await chainlink_utils.async_get_feed_datum(feed)

Out[4]:

0.998108

Get historical values of a feed¶

In [5]:

feed_data = await chainlink_utils.async_get_feed_data(feed)

feed_data

Out[5]:

block_number
12907805    1.005519
12908175    1.017371
12908243    1.007141
12914636    1.001345
12920910    1.002064
              ...   
14661090    0.996706
14661346    0.996719
14661614    0.995403
14661863    0.997365
14662123    0.998108
Name: answer, Length: 4432, dtype: object

Get interpolated historical values of a feed¶

In [6]:

feed_data = await chainlink_utils.async_get_feed_data(feed, interpolate=True)

feed_data

Out[6]:

block_number
12907805    1.005519
12907806    1.005519
12907807    1.005519
12907808    1.005519
12907809    1.005519
              ...   
14662171    0.998108
14662172    0.998108
14662173    0.998108
14662174    0.998108
14662175    0.998108
Name: answer, Length: 1754371, dtype: float64

Reference

async ctc.protocols.chainlink_utils.async_summarize_feed(feed, n_recent=10)

Parameters

feed (<class 'str'>) –
n_recent (<class 'int'>) –

Return type