Enum Block 

pub enum Block<'a> {
    Section(Section<'a>),
    Divider,
    Image(Image<'a>),
    Actions(Actions<'a>),
    Context(Context<'a>),
    Input(Input<'a>),
    Header(Header<'a>),
    File(File<'a>),
}

Layout Blocks

Blocks are a series of components that can be combined to create visually rich and compellingly interactive messages.

Read our guide to building block layouts 🔗 to learn where and how to use each of these components.

You can include up to 50 blocks in each message, and 100 blocks in modals or home tabs.

Variants

Section(Section<'a>)

Section Block

Divider

Divider Block

slack api docs 🔗

A content divider, like an <hr>, to split up different blocks inside of a message.

The divider block is nice and neat, requiring no fields.

Image(Image<'a>)

Image Block

Actions(Actions<'a>)

Actions Block

Context(Context<'a>)

Context Block

Input(Input<'a>)

Input Block

Header(Header<'a>)

Input Block

File(File<'a>)

File Block

Implementations

impl<'a> Block<'a>

pub fn validate(&self) -> Result<(), ValidationErrors>

Available on crate feature validation only.

Validate that this block agrees with Slack’s model requirements.

use slack_blocks::{blocks, blocks::Image};

let long_string = std::iter::repeat('a').take(2001).collect::<String>();

let img = Image::builder().src("foo.com").alt(long_string).build();

assert!(matches!(img.validate(), Err(_)), "validation should fail!")

Trait Implementations

impl<'a> Debug for Block<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, 'a> Deserialize<'de> for Block<'a>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Block<'_>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<Actions<'a>> for Block<'a>

fn from(src: Actions<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<Context<'a>> for Block<'a>

fn from(src: Context<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<File<'a>> for Block<'a>

fn from(src: File<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<Header<'a>> for Block<'a>

fn from(src: Header<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<Image<'a>> for Block<'a>

fn from(src: Image<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<Input<'a>> for Block<'a>

fn from(src: Input<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<Section<'a>> for Block<'a>

fn from(src: Section<'a>) -> Self

Converts to this type from the input type.

impl<'a> Hash for Block<'a>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> PartialEq for Block<'a>

fn eq(&self, other: &Block<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> Serialize for Block<'a>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> StructuralPartialEq for Block<'a>