10 replies

Wrapping Function X to Handle Errors

Let's say I have function X that can throw an error at any given time

const X = async (id: unknown) => {
  if (typeof id !== 'number') throw // this could throw an error
  const item = await getItemViaId(id) // this could throw an error
  return JSON.parse(item) // this could throw an error
}

const X = async (id: unknown) => {
  if (typeof id !== 'number') throw // this could throw an error
  const item = await getItemViaId(id) // this could throw an error
  return JSON.parse(item) // this could throw an error
}

I want to wrap this function with some utils so that if an error is thrown I will return

{ success: false, error: string}

{ success: false, error: string}

, otherwise, return

{ success: true, data }

{ success: true, data }

. I'd assume Effect can help here, what would be the correct pattern?

Effect Community•3y ago•

10 replies

firefox

Wrapping Function X to Handle Errors

Let's say I have function X that can throw an error at any given time

const X = async (id: unknown) => {
  if (typeof id !== 'number') throw // this could throw an error
  const item = await getItemViaId(id) // this could throw an error
  return JSON.parse(item) // this could throw an error
}

const X = async (id: unknown) => {
  if (typeof id !== 'number') throw // this could throw an error
  const item = await getItemViaId(id) // this could throw an error
  return JSON.parse(item) // this could throw an error
}

I want to wrap this function with some utils so that if an error is thrown I will return

{ success: false, error: string}

{ success: false, error: string}

, otherwise, return

{ success: true, data }

{ success: true, data }

. I'd assume Effect can help here, what would be the correct pattern?

Wrapping Function X to Handle Errors

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