The following below Magento 2.x GraphQL Query
Syntax
To Get One CMS Block
cmsBlocks(identifiers: String): CmsBlocks
To Get One Multiple CMS Block
cmsBlocks(identifiers: [String,String]): CmsBlocks
[1] To Get Home Page Block Data
{
cmsBlocks(identifiers: "home-page-block") {
items {
identifier
title
content
}
}
}
[2] To Get Contact Us Block Data
{
cmsBlocks(identifiers: "contact-us-info") {
items {
identifier
title
content
}
}
}
[3] To Get Login Block Data
{
cmsBlocks(identifiers: "login-data") {
items {
identifier
title
content
}
}
}
[4] To Get Gift Card Block Data
{
cmsBlocks(identifiers: "giftcard-block") {
items {
identifier
title
content
}
}
}