Might Fail

A TypeScript library for handling async and sync errors without try and catch blocks. Inspired by other languages that utilize Result or Either types for safer error handling.

This works for sync and async code, and you can choose the error handling style that you like.

Other languages

Swift
PHP

Install

npx jsr add @might/fail

npx jsr add @might/fail

npx jsr add @might/fail

npx jsr add @might/fail

import { mightFail } from "@might/fail"

import { mightFail } from "@might/fail"

import { mightFail } from "@might/fail"

import { mightFail } from "@might/fail"

npm install might-fail

npm install might-fail

npm install might-fail

npm install might-fail

import { mightFail } from "might-fail"

import { mightFail } from "might-fail"

import { mightFail } from "might-fail"

import { mightFail } from "might-fail"

import { mightFail } from "might-fail"
const [networkError, result] = await mightFail(fetch("/posts"))

if (networkError) {
  // handle network error
  return
}

if (!result.ok) {
  // handle an error response from server
  return
}

const [convertToJSONError, posts] = await mightFail(
  result.json()
)

if (convertToJSONError) {
  // handle convertToJSONError
  return
}

posts.map((post) => console.log(post.title))

import { mightFail } from "might-fail"
const [networkError, result] = await mightFail(fetch("/posts"))

if (networkError) {
  // handle network error
  return
}

if (!result.ok) {
  // handle an error response from server
  return
}

const [convertToJSONError, posts] = await mightFail(
  result.json()
)

if (convertToJSONError) {
  // handle convertToJSONError
  return
}

posts.map((post) => console.log(post.title))

import { mightFail } from "might-fail"
const [networkError, result] = await mightFail(fetch("/posts"))

if (networkError) {
  // handle network error
  return
}

if (!result.ok) {
  // handle an error response from server
  return
}

const [convertToJSONError, posts] = await mightFail(
  result.json()
)

if (convertToJSONError) {
  // handle convertToJSONError
  return
}

posts.map((post) => console.log(post.title))

import { mightFail } from "might-fail"
const [networkError, result] = await mightFail(fetch("/posts"))

if (networkError) {
  // handle network error
  return
}

if (!result.ok) {
  // handle an error response from server
  return
}

const [convertToJSONError, posts] = await mightFail(
  result.json()
)

if (convertToJSONError) {
  // handle convertToJSONError
  return
}

posts.map((post) => console.log(post.title))