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https://github.com/alii/pathcat

Simply path/URL building in JavaScript
https://github.com/alii/pathcat

http networking nodejs typescript urls utility

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Simply path/URL building in JavaScript

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# `pathcat` 🐾

Simply path/URL building in JavaScript. Intelligently handles URL params and query strings.

This library owes thanks to urlcat, but unfortunately it seems to be abandoned. You can mostly use pathcat as a replacement.

## Features

- Very intuitive API
- Supports URL params and query string
- Avoids double slashes
- Zero dependencies
- Absolutely tiny install size

## Install

```sh
yarn add pathcat
```

## Usage

```typescript
import { pathcat } from "pathcat";

pathcat("https://example.com", "/:id", {
id: 123,
});
// => 'https://example.com/123'

pathcat("https://example.com", "/:id", {
id: "123",
foo: "bar",
});
// => 'https://example.com/123?foo=bar'

// Base URL is optional, works on just paths as well.
pathcat("/users/:user_id/posts/:post_id", {
user_id: "123",
post_id: 456,
cool_flag: true,
});
// => '/users/123/posts/456?cool_flag=true'

// You can also use arrays for query string values
pathcat("/users/:user_id/posts/:post_id", {
user_id: "123",
post_id: 456,
cool_flag: true,
fields: ["title", "body"],
});
// => '/users/123/posts/456?cool_flag=true&fields=title&fields=body'
```

## Benchmark:

Results when running on an M3 Max

```
$ node --import=tsx benchmark.ts

With a base URL x 1,446,429 ops/sec ±0.55% (94 runs sampled)
With no base URL x 1,494,634 ops/sec ±0.43% (98 runs sampled)
With a base URL, and no params x 2,720,270 ops/sec ±0.36% (93 runs sampled)
```

## Notes:

- Any params or query string values that are `undefined` will be omitted.
- Params that were not specified in the object will be left as is.