Crate slack_blocks

This crate brings Slack’s terrific Block Kit 🔗 to the Rust ecosystem.

Inside, you’ll find models for all of Slack’s Layout Blocks, Block Elements, and Composition Objects.

Every model has builders that leverage Rust’s type system to help you make sure what you’re sending to Slack is 100% valid to them.

Troubleshooting common compiler errors

Method build not found for ...Builder - Dig into the error message, you’ll find something like RequiredMethodNotCalled<method::foo>, meaning you need to call .foo() before you can call .build()!

Example

Using an example from Slack’s Documentation:

{
  "type": "section",
  "text": {
    "text": "*Sally* has requested you set the deadline for the Nano launch project",
    "type": "mrkdwn"
  },
  "accessory": {
    "type": "datepicker",
    "action_id": "datepicker123",
    "initial_date": "1990-04-28",
    "placeholder": {
      "type": "plain_text",
      "text": "Select a date"
    }
  }
}

You can use raw Builders like so:

use slack_blocks::{text::ToSlackMarkdown, blocks::Section, elems::DatePicker};

let section = Section::builder()
                      .text("*Sally* has requested you set the deadline for the Nano launch project".markdown())
                      .accessory(DatePicker::builder()
                                            .action_id("datepicker123")
                                            .initial_date((28, 4, 1990))
                                            .placeholder("Select a date")
                                            .build()
                      )
                      .build();

Or enable the unstable feature and use xml macros:

use slack_blocks::mox::*;

let pick_date = blox! {
  <date_picker action_id="datepicker123"
               placeholder="Select a date"
               initial_date=(28, 4, 1990) />
};

let section = blox! {
  <section_block accessory=pick_date>
    <text kind=plain>"*Sally* has requested you set the deadline for the Nano launch project"</text>
  </section_block>
};

Modules

blocks	Layout Blocks
compose	Composition Objects
elems	Block Elements - interactive components
mox	xml XML macro support
text	Text Object

Enums

Block	Layout Blocks
BlockElement	Block Elements - interactive components