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Polygon.io - Pricing
Polygon.io offers streaming realtime data for stocks/equities, ETFs, Indecies and Forex/Currencies including crypto currencies. Our Real-Time Stock Data APIs help you build the future on fintech.
trading  data 
april 2019 by ianweatherhogg
Build a Simple Persistent Key-Value Store in Elixir, using Logs - Part 1 - Elixir
In this series of articles we will see the different concepts behind a key-values store (Logs, Segments, Compaction, Memtable, SSTable) implementing a simple engine in Elixir, which is a great language to build highly-concurrent and fault-tolerant architectures.
elixir  key  value  data  base  reader  writer 
march 2019 by ianweatherhogg
CoinMarketCap API Documentation
Reference API documentation for the CoinMarketCap API
api  trading  data  bitcoin 
march 2019 by ianweatherhogg
Download Large Files with HTTPoison Async Requests
Make requests with HTTPoison is easy, but the response is held in memory. To download large files we need to divide the response into chunks.
elixir  trading  data  stream  async  chunk  4* 
february 2019 by ianweatherhogg
Processing Large CSV files with Elixir Streams
Elixir Streams are extremely powerful when we need to process large CSV files. Let's see the difference between a greedy and lazy approach.
elixir  stream  file  csv  bitcoin  data  chunk  compose 
february 2019 by ianweatherhogg
Akka Streams for extracting Wikipedia Articles - Uwe's Blog
Use Akka Streams as a new technique to extract specific articles from the Wikipedia xml dump into single files without the need to fit all data into RAM.

akka  stream  wikipedia  data 
august 2018 by ianweatherhogg
Stock Price Data, Financial and Stock Market API, Real-Time Currency and Crypto
Cheapest stock historical data and prices on the market. Best End-of-Day Data. More than 30+ stock exchanges and 120.000 securities in total.
trading  data  api 
june 2018 by ianweatherhogg
API Documentation | Alpha Vantage
API Documentation for Alpha Vantage. Alpha Vantage offers free JSON APIs for realtime and historical stock and equity data with over 50 technical indicators. Supports intraday, daily, weekly, and monthly stock quotes and technical analysis with charting-ready time series. 100% free with unlimited API calls.
api  trading  data  finance 
february 2018 by ianweatherhogg
Alpha Vantage - Free APIs for Realtime and Historical Financial Data, Technical Analysis, Charting, and More!
Alpha Vantage offers free APIs in JSON and CSV formats for realtime and historical stock and forex data, digital/crypto currency data and over 50 technical indicators. Supports intraday, daily, weekly, and monthly quotes and technical analysis with chart-ready time series. 100% free with unlimited API calls.
api  trading  data 
february 2018 by ianweatherhogg
Gradient Trader Part 0: Building a Cryptocurrency Trading Bot
########### Disclaimer: I have moved the entire market data collection stack to Rust. Everything in this post still works.
bitcoin  trading  broker  strategy  type  script  rust  python  order  book  time  series  data  base 
february 2018 by ianweatherhogg
Federal Reserve Economic Data | FRED | St. Louis Fed
Download, graph, and track 507,000 economic time series from 87 sources.
trading  data 
december 2017 by ianweatherhogg
How to Get a Data Science Job: A Ridiculously Specific Guide
Brandon Rohrer:How to Get a Data Science Job: A Ridiculously Specific Guide
cv  data  science  5* 
may 2017 by ianweatherhogg
A One-Step Program for Becoming a Data Scientist
Brandon Rohrer: A One-Step Program for Becoming a Data Scientist.
cv  data  science  5*  inspiration  creativity 
may 2017 by ianweatherhogg
The Algebra of Algebraic Data Types, Part 2 - Chris Taylor
I gave a talk on this subject at London Haskell in November 2012. A video of the talk is on YouTube and slides are on GitHub. This is Part 2 in a …
haskell  algebraic  data  type  5* 
may 2017 by ianweatherhogg
Tradier API: How to stream realtime quotes
Find documentation on how to use the Tradier API to stream realtime equity and option quotes
trading  api  data  chunk  stream  processing 
april 2017 by ianweatherhogg
Barchart OnDemand | Free Financial Market Data APIs
Free Financial Market Data APIs for apps and websites --- Stock, futures and forex quotes and historical data
free  trading  data 
april 2017 by ianweatherhogg
High quality intraday futures historical data
High quality Intraday Futures Historical data 1m 5m 15m 30m 1h 4h 1d. WB says: "price is what you pay, Value is what you get"
trading  data 
april 2017 by ianweatherhogg
anvaka (Andrei Kashcha) / Repositories
anvaka has 244 repositories available. Follow their code on GitHub.
github  javascript  data  visualization 
april 2017 by ianweatherhogg
Erlang's Internal Data Representation - Detail oriented
I find it interesting how the Erlang BEAM engine represents data in memory. Quick look: An Erlang list This is the in-memory layout of the Erlang …
erlang  data  structure  type 
april 2017 by ianweatherhogg
Tradier Developer | Developer
Tradier's technology platform - an innovative set of fully hosted APIs, modules and 'out of the box' tools built to serve developers, providers and investors.
trading  data  api  stream 
march 2017 by ianweatherhogg
Coeffects: Context-aware programming languages
Interactive essay that explains theory of coeffects and lets you type-check and run sample programs.
context  programming  language  data  flow  5* 
december 2016 by ianweatherhogg
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