Lambdas Support GraphQL AST

Users Dgraph Cloud
,
1

Request support for Dgraph Cloud Lambdas graphql function to have AST type support. It would make developing lambdas 10x better and give devs the peace of mind that their queries/mutations are type safe. They will then also be able to use popular graphql tools that work with the AST standard.

This code is from dgraph-lambda/dgraph.ts at main · dgraph-io/dgraph-lambda · GitHub

export async function graphql(query: string, variables: Record<string, any> = {}, authHeader?: AuthHeaderField): Promise<GraphQLResponse> {
  const headers: Record<string, string> = { "Content-Type": "application/json" };
  if (authHeader && authHeader.key && authHeader.value) {
    headers[authHeader.key] = authHeader.value;
  }
  const response = await fetch(`${process.env.DGRAPH_URL}/graphql`, {
    method: "POST",
    headers,
    body: JSON.stringify({ query, variables })
  })
  if (response.status !== 200) {
    throw new Error("Failed to execute GraphQL Query")
  }
  return response.json();
}

and it would be nice to have the definition something like this (the examples using graphql-request)

import { GraphQLClient } from 'graphql-request'
...
export async function graphql(query: string|DocumentNode, variables: Record<string, any> = {}, authHeader?: AuthHeaderField): Promise<GraphQLResponse> {
    const headers: Record<string, string> = { "Content-Type": "application/json" };
    // const vars:  Record<string, any> = variables?variables:{}
    const uri = `${process.env.DGRAPH_URL}/graphql`
    if (authHeader && authHeader.key && authHeader.value) {
      headers[authHeader.key] = authHeader.value;
    }
    if(typeof query === 'string'){
        const response = await fetch(uri, {
            method: "POST",
            headers,
            body: JSON.stringify({ query, variables })
          })
          if (response.status !== 200) {
            throw new Error("Failed to execute GraphQL Query")
          }
          return response.json();
    }
    const client = new GraphQLClient(uri, {headers: headers})
    const response = await client.request(query, variables)
    return response
  }