Can’t download data from Yahoo Finance using Quantmod in R

by

The price history csv URL’s appear to have changed

Old
https://chart.finance.yahoo.com/table.csv?s=AAPL&a=2&b=17&c=2017&d=3&e=17&f=2017&g=d&ignore=.csv

New:
https://query1.finance.yahoo.com/v7/finance/download/AAPL?period1=1492438581&period2=1495030581&interval=1d&events=history&crumb=XXXXXXX

The new version appends a “crumb” field which appears to reflect cookie information in the user’s browser. It seems they are intentionally blocking automated downloads of price histories and forcing queries to provide information to validate cookies in a web browser

More Related Contents:

  1. Error in new.session() : Could not establish session after 5 attempts
  2. How to load packages in R automatically?
  3. Add objects to package namespace
  4. Creating a local R package repository
  5. How can I document data sets with roxygen?
  6. Show names of everything in a package
  7. Error in model.frame.default: variable lengths differ
  8. Access odd-named object returned by getSymbols
  9. Quantmod Error ‘cannot open URL’
  10. Configuring compilers on Apple silicon (Big Sur, Monterey, Ventura) for Rcpp and other tools
  11. Error: could not find function … in R
  12. Simultaneously merge multiple data.frames in a list
  13. Aggregate a data frame based on unordered pairs of columns
  14. Sample from vector of varying length (including 1)
  15. Histogram with Logarithmic Scale and custom breaks
  16. Convert named list to vector with values only
  17. Using R to list all files with a specified extension
  18. What’s the differences between & and &&, | and || in R? [duplicate]
  19. File path issues in R using Windows (“Hex digits in character string” error)
  20. How to create grouped barplot with R [duplicate]
  21. What is the right way to multiply data frame by vector?
  22. How to plot a hybrid boxplot: half boxplot with jitter points on the other half?
  23. Cowplot made ggplot2 theme disappear / How to see current ggplot2 theme, and restore the default?
  24. Faster weighted sampling without replacement
  25. Error in file(file, “rt”) : cannot open the connection [duplicate]
  26. What’s the difference between `1L` and `1`?
  27. How to deal with “data of class uneval” error from ggplot2?
  28. Issue with ggplot2, geom_bar, and position=”dodge”: stacked has correct y values, dodged does not
  29. Importing csv file into R – numeric values read as characters
  30. Read csv from specific row

Leave a Comment