The following example handles server and connectivity errors for javascript fetch requests.
1function handleErrors(response) { 2 if (!response.ok) throw new Error(response.status) 3 return response 4} 5 6fetch('https://jsonplaceholder.typicode.com/todos/1') 7 // handle network err/success 8 .then(handleErrors) 9 // use response of network on fetch Promise resolve 10 .then(response => console.log("ok")) 11 // handle fetch Promise error 12 .catch(error => console.log('found an error: ', error)) handleErrors can be updated for handling different types of errors in different ways.
