AWS Dynamo DB Client

aws.dynamodb is a package for the Amazon DynamoDB API

To use the package, you will need an AWS account and to enter your credentials into R. Your keypair can be generated on the IAM Management Console under the heading Access Keys. Note that you only have access to your secret key once. After it is generated, you need to save it in a secure location. New keypairs can be generated at any time if yours has been lost, stolen, or forgotten. The aws.iam package profiles tools for working with IAM, including creating roles, users, groups, and credentials programmatically; it is not needed to use IAM credentials.

A detailed description of how credentials can be specified is provided at: https://github.com/cloudyr/aws.signature/. The easiest way is to simply set environment variables on the command line prior to starting R or via an Renviron.site or .Renviron file, which are used to set environment variables in R during startup (see ? Startup). They can be also set within R:

Sys.setenv("AWS_ACCESS_KEY_ID" = "mykey",
           "AWS_SECRET_ACCESS_KEY" = "mysecretkey",
           "AWS_DEFAULT_REGION" = "us-east-1",
           "AWS_SESSION_TOKEN" = "mytoken")

Code Examples

library("aws.dynamodb")

# list all tables
list_tables()

# Create a table
tab <- create_table(
  table = "Music",
  attributes = list(Artist = "S", SongTitle = "S"),
  primary_key = "Artist",
  sort_key = "SongTitle"
)

# put item in database
put_item("Music", list(Artist = "No One You Know", SongTitle = "Call Me Today"))
put_item("Music", list(Artist = "Another Band", SongTitle = "Some Song"))

# get the table
get_table(tab)

# get an item
get_item("Music", "Another Band")

# cleanup
delete_table(tab)

Installation

This package is not yet on CRAN. To install the latest development version you can install from the cloudyr drat repository:

# latest stable version
install.packages("aws.dynamodb", repos = c(cloudyr = "http://cloudyr.github.io/drat", getOption("repos")))

Or, to pull a potentially unstable version directly from GitHub:

if (!require("remotes")) {
    install.packages("remotes")
}
remotes::install_github("cloudyr/aws.dynamodb")

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