Function reference • blastula

Composing an Email Message An email message can be easily created with the `compose_email()` function. Want to attach files to the message? That’s a cinch with `add_attachment()`. We can experiment with a example email message using `prepare_test_message()`.
`compose_email()`	Create the email message body
`add_attachment()`	Add a file attachment to an email message
`prepare_test_message()`	Prepare a email test message object
`blastula_template()`	Default template for `compose_email()`
Add Inline Components Several types of useful HTML fragments generated and incorporated into the email message content. We can create and use CTA buttons, links to images, and more!
`add_image()`	Create an HTML fragment for an embedded image
`add_imgur_image()`	Deploy a local image to Imgur and create an image tag
`add_cta_button()`	Create an HTML fragment for a CTA button
`add_ggplot()`	Create an HTML fragment for an embedded ggplot image
`add_readable_time()`	Create a string with a more readable date/time
`md()`	Interpret input text as Markdown-formatted text
`%>%`	The magrittr pipe
HTML Blocks We can use HTML blocks to compose our email message. These functions are placed inside of an unnamed list and the order determines the ordering of the blocks. With these responsive, higher-level components, we can create sophisticated email messages with minimal effort.
`blocks()`	An enclosure for all HTML block functions
`block_title()`	A block with large title text
`block_text()`	A block of text
`block_spacer()`	A spacer block
`block_articles()`	A block of one, two, or three articles with a multicolumn layout
`block_social_links()`	A block of social sharing icons with links
`article()`	Specify the components of an article
`social_link()`	Specify the components of a social link
Email Sending through SMTP Once the email looks good enough to send, we can send it through an SMTP server, with the MailGun service, or simply extract the HTML message body and go elsewhere. There is also the convenient option to create and store SMTP credentials with either the `create_smtp_creds_file()` or the `create_smtp_creds_key()` function.
`smtp_send()`	Send an email message through SMTP
`send_by_mailgun()`	Send an email message through the Mailgun API
`get_html_str()`	Get the HTML content of an email message
`create_smtp_creds_file()`	Store SMTP credentials in a file
`create_smtp_creds_key()`	Store SMTP credentials in the system's key-value store
`creds()` `creds_anonymous()` `creds_envvar()` `creds_key()` `creds_file()`	Helpers for supplying SMTP credentials
`view_credential_keys()`	View all available blastula credential keys
`delete_credential_key()`	Delete a single blastula credential key
`delete_all_credential_keys()`	Delete all blastula credential keys
Email Sending through RStudio Connect Using the RStudio Connect service, it’s possible to publish R Markdown documents and provide a scheduled email based on the report. Example .Rmd documents can be generated by using the `prepare_rsc_example_files()` function. These files constitute a working example for a publishing workflow that uses the `render_connect_email()` and `attach_connect_email()` functions.
`render_email()` `render_connect_email()`	R Markdown render functions for the `blastula_email` output format
`attach_connect_email()`	Associate an email when publishing an R Markdown document to RStudio Connect
`blastula_email()`	The R Markdown `blastula_email` output format
`suppress_scheduled_email()`	Suppress any scheduled emailing in RStudio Connect
`prepare_rsc_example_files()`	Prepare example files for RStudio Connect emailing with R Markdown

Reference

Composing an Email Message

Add Inline Components

HTML Blocks

Email Sending through SMTP

Email Sending through RStudio Connect