ai-agent

Dataloader

Name: Dataloader
Author: graphql

DataLoader is a generic utility to be used as part of your application's data fetching layer to provide a consistent API over various backends and reduce requests to those backends via batching and…

13,389 stars515 forksJavaScriptUpdated 8/11/2026100% free · open source

What it does

DataLoader provides a consistent API to fetch data from various backends, reducing requests through batching and caching, thus improving application performance.

When to use it

•When your application needs to fetch data from multiple APIs or databases
•When you want to reduce the number of requests to external services
•When you need to implement caching to improve application performance

Ready-to-paste prompt

const DataLoader = require('dataloader'); const batchLoadFn = (keys) => Promise.all(keys.map((key) => fetch(`https://api.example.com/${key}`))); const loader = new DataLoader(batchLoadFn); const data = await loader.load('user123');

Heads up: Make sure to handle the case where the batch loading function returns an array of values that is not the same length as the input array of keys, as DataLoader expects a 1:1 correspondence between keys and values

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/dataloader && curl -fsSL https://workflowstacks.com/api/skills/dataloader/claude-skill -o ~/.claude/skills/dataloader/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Dataloader works

Codeflow

Free to inspect

Dataloader is a small JavaScript project (~1.6k lines across 6 code files, plus 5 test files). Setup is light: installs like a normal app. Reading the code is optional. Last commit a month ago, MIT license, has a test suite.

Size

Small codebase

~1.6k lines · 6 code files · 13 min skim

Setup

One-command install

Installs like a normal app. Reading the code is optional.

Runs on

Node.js

No API keys detected

JavaScript 99%Shell 1%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
src/index.js
Where the program starts running
3
package.json
Dependencies and the commands it exposes
4
examples/CouchDB.md
A worked example — copy this to get going

What's in each folder

src/Core code — the actual logic7 files

examples/Examples you can copy6 files

resources/Folder2 files

flow-typed/Folder1 files

.github/CI / automation (GitHub Actions)4 files

.changeset/Tool / agent settings2 files

READMEHas testsDocumentedCI checksExamples includedMIT licenseUpdated this month

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/dataloader && curl -fsSL https://workflowstacks.com/api/skills/dataloader/claude-skill -o ~/.claude/skills/dataloader/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

graphql

Language

JavaScript