Update for beem - missing API calls and ImageUploader added

in #utopian-io • 6 years ago (edited)

Repository

https://github.com/holgern/beem


beem-logo.png

beem is a python library for steem. beem has now 526 unit tests and a coverage of 76 %. The current version is 0.19.39.
I created a discord channel for answering a question or discussing beem: https://discord.gg/4HM592V

New features

ImageUploader

Thanks to @embrebeyler and his python library imagehoster-python-client I was able to add a ImageUploader class to beem. I could simplify the original code to:

from beemgraphenebase.ecdsasig import sign_message
message = py23_bytes(self.challange, "ascii") + image_data
signature = sign_message(message, posting_wif)
signature_in_hex = hexlify(signature).decode("ascii")

It is now possible to upload images in bytes representation directly to steemitimages.com:

from beem.imageuploader import ImageUploader
from beem import Steem

import io
from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
import matplotlib.figure
from matplotlib.figure import Figure

fig = Figure(figsize=(10,  10), dpi=100)
canvas = FigureCanvas(fig)
ax = fig.add_axes([.1, .1, .8, .8])
ax.plot(range(15))
ax.set_xlabel('x')
ax.set_ylabel('y')
buf = io.BytesIO()
fig.savefig(buf, format='png')
buf.seek(0)

stm = Steem(keys=["xxx"])
io = ImageUploader(steem_instance=stm)
io.upload(buf.read(), "holger80")

with the result:

{'url': 'https://cdn.steemitimages.com/DQmXvmNs3UxXRYqwA7ieP3WMcTLJeRyN3UdvsejD46UqaMv/image'}

It's then possible to embed this link into a post:

![]('https://cdn.steemitimages.com/DQmXvmNs3UxXRYqwA7ieP3WMcTLJeRyN3UdvsejD46UqaMv/image)

update_nodes() from NodeList improved

update_nodes calculates now the score for each node by:

score = (n - rank) / (n- 1) * 100
weigthed_score = score * weights_dict[benchmark]
sum_score += weigthed_score

where rank is the rank of the node at the specific benchmark. n is the number of nodes and weights_dict[benchmark] the the weight for this benchmark. The sum of weights_dict is one.
At the moment 5 benchmarks are calculated every hour are written into the metadata field of @fullnodeupdate.
Available benchmarks:

  • block
  • history
  • apicall
  • block_diff
  • config

Api Definitions

Api Definitions are created with examples for all available API calls defined here.

image.png

Missing API calls were added

  • get_expiring_vesting_delegations
from beem.account import Account
acc = Account("emrebeyler")
print(acc.get_expiring_vesting_delegations())

[{'id': 2341553, 'delegator': 'emrebeyler', 'vesting_shares': '2439949.303020 VESTS', 'expiration': '2018-06-22T15:10:00'}, {'id': 2212414, 'delegator': 'emrebeyler', 'vesting_shares': '20338.649992 VESTS', 'expiration': '2018-06-25T23:48:45'}]
  • get_feed_entries
from beem.account import Account
acc = Account("gtg")
for f in acc.get_feed_entries():
    print(f)
  • get_blog_authors
from beem.account import Account
acc = Account("gtg")
for h in acc.get_blog_authors():
    print(h)
  • get_savings_withdrawals
from beem.account import Account
acc = Account("gtg")
print(acc.get_savings_withdrawals(direction="from"))
print(acc.get_savings_withdrawals(direction="to"))
  • get_escrow
from beem.account import Account
acc = Account("gtg")
print(acc.get_escrow())
  • get_account_reputations
from beem.blockchain import Blockchain
b = Blockchain()
for h in b.get_account_reputations():
    print(h)
  • Discussions_by_author_before_date
from beem.discussions import Query, Discussions_by_author_before_date
for h in Discussions_by_author_before_date(limit=10, author="gtg"):
    print(h)
  • get_transaction_hex
from beem.blockchain import Blockchain
b = Blockchain()
block = b.get_current_block()
trx = block.json()["transactions"][0]
print(b.get_transaction_hex(trx))
  • get_tags_used_by_author
from beem.account import Account
acc = Account("gtg")
print(acc.get_tags_used_by_author())
  • Replies_by_last_update
from beem.discussions import Query, Replies_by_last_update
q = Query(limit=10, start_author="steemit", start_permlink="firstpost")
for h in Replies_by_last_update(q):
    print(h)
  • Trending_tags
from beem.discussions import Query, Trending_tags
q = Query(limit=10, start_tag="steemit")
for h in Trending_tags(q):
    print(h)
  • get_vesting_delegations
from beem.account import Account
acc = Account("gtg")
for v in acc.get_vesting_delegations():
    print(v)

Commit history

Try to improve blocks with threading and some more error caption

get_expiring_vesting_delegations added to account

Account

  • get_expiring_vesting_delegations added

Blockchain

  • thread_limit parameter removed
  • batch_mode set to True for threaded blocks()
  • block sanity check added for threaded blocks()

Add missing api functions

Account

  • get_feed_entries, get_blog_authors, get_savings_withdrawals, get_escrow
  • Documentation improved
  • Account parameter handling improved

Blockchain

  • get_account_reputations added

ImageUploader added

  • commit 169dc2b
  • ImageUploader can be used to upload an image file or an image in bytes

Improved score calculated for update_nodes

Improved blocks with threads and improved unit test

Add Discussions_by_author_before_date and improve some other discussions class

Discussions

  • Discussions_by_author_before_date added

beemapi/Nodes

  • add an option to freeze a node, in order to prevent switching to the next node

get_vesting_delegations added and block date conversion improved

Account

  • get_vesting_delegations added

More functions added and a complete list of API definitions added to docs

Discussions

  • Replies_by_last_update and Trending_tags added

Blockchain

  • get_transaction_hex added

Account

  • get_tags_used_by_author added

Docs

  • apidifinitions added

Block and Blockchain improved and Readme adapted to changes

Block identifier handling improved and test_blockchain_treading improved

GitHub Account

https://github.com/holgern

If you like what I'm doing, please consider @holger80 as one of your witnesses (steemconnect).

#development #beem #python #busy
6 years ago in #utopian-io by
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     6 years ago  

    Thank you for your contribution. Again a great update to a project.

    Your contribution has been evaluated according to Utopian policies and guidelines, as well as a predefined set of questions pertaining to the category.

    To view those questions and the relevant answers related to your post, click here.

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    [utopian-moderator]

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      [-]
       6 years ago  

      Hey @holger80
      Thanks for contributing on Utopian.
      We’re already looking forward to your next contribution!

      Contributing on Utopian
      Learn how to contribute on our website or by watching this tutorial on Youtube.

      Want to chat? Join us on Discord https://discord.gg/h52nFrV.

      Vote for Utopian Witness!

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        [-]
         6 years ago  

        Hi @holger80 , took a break for a while, but big kudos from me on Beem! Keep it up, if you need a hand at something let me know.

        @scipio

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