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graphql-request (simplest)

npm install graphql-request graphql

import { GraphQLClient, gql } from "graphql-request";

const client = new GraphQLClient("https://app.betacit.com/graphql", {
  headers: { Authorization: `Bearer ${process.env.TACIT_API_KEY}` },
});

const data = await client.request(gql`
  {
    building(siteId: "your-site-id") {
      id
      name
      equipment(is: "AHU") {
        name
        points(is: "Temperature_Sensor") {
          name
          unit
          currentValue { value timestamp quality }
        }
      }
    }
  }
`);

​
Apollo Client

npm install @apollo/client graphql

import { ApolloClient, InMemoryCache, gql } from "@apollo/client";

const client = new ApolloClient({
  uri: "https://app.betacit.com/graphql",
  cache: new InMemoryCache(),
  headers: { Authorization: `Bearer ${process.env.TACIT_API_KEY}` },
});

const { data } = await client.query({
  query: gql`
    {
      building(siteId: "your-site-id") { id name }
    }
  `,
});

​
Codegen

Generate TypeScript types from the Tacit GraphQL schema: 
npm install -D @graphql-codegen/cli @graphql-codegen/typescript
codegen.yml
schema: "https://app.betacit.com/graphql"
generates:
  ./src/generated/types.ts:
    plugins:
      - typescript
      - typescript-operations

npx graphql-codegen