React native Expo project, Fetch the API will get [TypeError: Network request failed], but the others api can work

Question

When I fetch the API in React native Expo project will get:

[TypeError: Network request failed].

I have try to fetch other API, it can get data success.

And also try to fix by this question but didn't work for me. (Also tried this React Native fetch() Network Request Failed)

Is API's problem?

My code like:

const val = { uId: 'molly', pwd: '123', id: '1' }
const url = 'https://c........com.tw:8899'

let header = {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
    },
    body: JSON.stringify(val),
}
fetch(`${url}/auth/login`, header)
    .then((r) => r.json())
    .then((d) => {
        if (d.code === 0) {
            console.log(d.data)
        } else {
            console.log('MSG', d.msg)
        }
    })
    .catch((err) => console.log(err))

And I have try this, it can work. (So is not the network problem.)

fetch('https://randomuser.me/api/')
        .then((r) => r.json())
        .then((d) => {
            console.log('ok')
        })
        .catch((err) => console.log(err))

this solution can solve your answer please go through it stackoverflow.com/questions/38418998/… — Muhammd Abdullah
– Muhammd Abdullah, Commented Jan 6, 2023 at 5:55

MOLLY · Accepted Answer · 2023-01-17 02:02:24Z

0

I found the problem is about ssl. Should use this package to deal with

react-native-ssl-pinning

https://www.npmjs.com/package/react-native-ssl-pinning

answered Jan 17, 2023 at 2:02

MOLLY

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