👕 React T-Shirt Forms

Sometimes life calls for more than a t-shirt. But t-shirts are easy, and comfortable - a good default until you need more.

Another Form Library?

Making a form in React is hard. Needlessly hard, with a lot of boilerplate - even when using any of the popular React form libraries.

T-Shirt Forms is intended to make creating simple forms simple.

It is powerful enough to handle complex and irregular cases, but it is more heavily geared towards reducing the boilerplate around regular forms.

If your app has lots of complex and irregular forms, then this library is probably not going to be the best solution. I would recommend looking at Formik instead.

Installing

npm install --save-dev react-t-shirt-forms

or

yarn add -D react-t-shirt-forms

Usage

API

See the API docs.

Examples

We show some basic examples on this page.

But you can see some more common flows in the examples.

Bare Bones Form

import TShirtForm from "react-t-shirt-forms";

// by default no styling is included in your bundle
// but you can pull in a basic CSS file if you like
import "react-t-shirt-forms/dist/stylesheets/basic.min.css";

const formSchema = {
  name: {
    type: "string",
    label: "Name",
    initialValue: "Bruce Wayne"
  },
  email: {
    type: "email",
    label: "Email"
  }
};

const onFormSubmit = async ({ formArgs }) => {
  console.log(JSON.stringify(formArgs, null, 2));
};

const App = () => (
  <TShirtForm schema={formSchema} handleSubmit={onFormSubmit} />
);

Validation

T-Shirt Forms allows integration with any validation library, but comes with out of the box hooks for yup.

import * as yup from "yup";
import { addValidation, yupSupport } from "react-t-shirt-forms";

// this tells T-Shirt Forms to use `yup` for any validations
// it also adds default validations for common fields
addValidation(yup, yupSupport);

Now you can use yup validations in your form schema:

const formSchema = {
  name: {
    type: "string",
    label: "Name",
    validation: yup()
      .string()
      .min(10)
  }
};

Custom Fields

If you have a custom React component that you need to use for all password inputs, you can specify a global rule for this.

import { setSchemaDefaults } from "react-t-shirt-forms";

const MyCustomPasswordInput = ({ onChange, onBlur, value, label }) => (
  <label>
    {label}
    <input
      type="password"
      value={value}
      onChange={e => onChange(e.target.value)}
      onBlur={e => onBlur(e)}
    />
  </label>
);

setSchemaDefaults({
  type: {
    password: {
      component: MyCustomPasswordInput
    }
  }
});

and now whenever you use a password input field

const formSchema = {
  myPasswordField: {
    type: "password",
    label: "My custom password field"
  }
};

you'll see that it's using your MyCustomPasswordInput component.

Bundle Size

T-Shirt Forms makes an effort to be minimal and modular.

Here's a look at its size, after tree-shaking, in different contexts:

• bare bones (21.19 KB / 5.71 KB gzipped)
• with CSS stylings (29.40 KB / 8.51 KB gzipped)
• with yup validation (29.45 KB / 8.53 KB gzipped)

Contributing

Contributors are welcome! 😊

Check out the CONTRIBUTING.md.

License

MIT