Integration with Deno

GraphQL Yoga provides you a cross-platform GraphQL Server. So you can easily integrate it into any platform besides Node.js.
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust (opens in a new tab).
We will use graphql-yoga which has an agnostic HTTP handler using Fetch API (opens in a new tab)’s Request (opens in a new tab) and Response (opens in a new tab) objects.

Example

Create a import_map.json file. Learn more about import maps (opens in a new tab)

Create a deno-yoga.ts file:

import_map.json


{
  
"imports"
:
 {
    
"graphql-yoga"
:
 
"npm:graphql-yoga@^3.7.3"
  }
}

deno-yoga.ts


import
 { createYoga
,
 createSchema } 
from
 
'graphql-yoga'
import
 { serve } 
from
 
'https://deno.land/[email protected]/http/server.ts'
 
const
 
yoga
 
=
 
createYoga
({
  schema
:
 
createSchema
({
    typeDefs
:
 
/* GraphQL */
 
`
      type Query {
        hello: String!
      }
    `
,
    resolvers
:
 {
      Query
:
 {
        
hello
:
 () 
=>
 
'Hello Deno!'
      }
    }
  })
})
 
serve
(yoga
,
 {
  
onListen
({ hostname
,
 port }) {
    
console
.log
(
      
`Listening on http://
${
hostname
}
:
${
port
}
/
${
yoga
.graphqlEndpoint
}
}`
    )
  }
})

And run it:


deno 
run
 
--allow-net
 
--import-map
 
./import_map.json
 
index.ts

You can also check a full example on our GitHub repository here (opens in a new tab)

Integration with Deno – GraphQL Yoga

Integration with Deno

Example