@uplift-ltd/graphene

Installation

npm i --save @uplift-ltd/graphene

API

fromGlobalId

Get the raw database ID from a global id.

import { fromGlobalId } from "@uplift-ltd/graphene";

const globalId = "VXNlcjox";
const dbId = fromGlobalId(globalId);

console.log(globalId); // => VXNlcjox
console.log(dbId); // => 1

toGlobalId

Encode a model name and database id to a global id.

import { toGlobalId } from "@uplift-ltd/graphene";

const globalId = toGlobalId("User", 1);

console.log(globalId); // => VXNlcjox

parseGlobalId

Parse both the model name and the database id from the global id.

import { parseGlobalId } from "@uplift-ltd/graphene";

const { name, id } = parseGlobalId("VXNlcjox");

console.log(name); // => User
console.log(id); // => 1

bumpGlobalId

Increment the global id. Requires the parsed ID to be an integer.

import { bumpGlobalId } from "@uplift-ltd/graphene";

const user1 = "VXNlcjox"; // => User:1

const user2 = bumpGlobalId(globalId); // => VXNlcjoy => User:2

const user5 = bumpGlobalId(globalId, 4); // => VXNlcjo1 => User:5

bumpOrInitCursor

Increment a cursor or initialize to arrayconnection:1 (YXJyYXljb25uZWN0aW9uOjE=).

import { bumpOrInitCusor } from "@uplift-ltd/graphene";

bumpOrInitCursor(null); // => YXJyYXljb25uZWN0aW9uOjE= => arrayconnection:1

bumpOrInitCursor("YXJyYXljb25uZWN0aW9uOjE="); // => YXJyYXljb25uZWN0aW9uOjI= => arrayconnection:2

mapNodes

Return an array of nodes from a relay-style connection.

import { mapNodes } from "@uplift-ltd/graphene";

const connection = { edges: [{ node: { id: 1 } }] };
const nodes = mapNodes(connection);

console.log(nodes); // => [{ id: 1}]

Optionally takes in a transform callback which will operate on each node,

import { mapNodes } from "@uplift-ltd/graphene";

const connection = { edges: [{ node: { id: 1 } }] };
const nodes = mapNodes(connection, (node) => ({ ...node, type: "EnhancedNode" }));

console.log(nodes); // => [{ id: 1, type: "EnhancedNode" }]

useMapNodes

Like mapNodes but returns a stable array (assuming connection and callback are stable).