Support to handlebars.js

[gustavorps]

What is Handlebars?

Handlebars is a simple templating language.

It uses a template and an input object to generate HTML or other text formats. Handlebars templates look like regular text with embedded Handlebars expressions.

<p>{{firstname}} {{lastname}}</p>

A handlebars expression is a {{, some contents, followed by a }}. When the template is executed, these expressions are replaced with values from an input object.

Example: Making GraphQL Request with Handlebars

###
# @promp stargazers.first:number = 5
# @promp stargazers.nodes.fields:string[] = ["login", "name"]

POST https://api.github.com/graphql
Content-Type: application/json
Authorization: Bearer xxx
X-REQUEST-TYPE: GraphQL

query ($name: String!, $owner: String!) {
  repository(name: $name, owner: $owner) {
    name
    fullName: nameWithOwner
    description
    diskUsage
    forkCount
    {{#with stargazers}}
    stargazers(first: {{first.value}}) {
        totalCount
        nodes {
          {{#each nodes.fields}}
            {{item}}
          {{/each}}
        }
    }
    {{/with}}
    watchers {
        totalCount
    }
  }
}

{
    "name": "vscode-restclient",
    "owner": "Huachao"
}