React Native Android HTTP Fetch Fails-CodePudding

Having issues using fetch in the android emulator with a local server. I can run the below code in node and in other environments with no issues, but in the Android emulator, I get an error. This is the code I am using:

fetch("http://127.0.0.1:5050",{
    method: 'POST',
    headers: {'Content-Type': 'application/json'},
    body: data}
).then(()=>{
    console.log("Got Response")
}).catch((error)=>{
    console.log(error)
});

The error I get is the following:

Possible Unhandled Promise Rejection (id: 6):
TypeError: Network request failed
http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:25395:33
http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:29610:26
_callTimer@http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:29530:17
callTimers@http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:29731:19
__callFunction@http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:3081:36
http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:2805:31
__guard@http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:3032:15
callFunctionReturnFlushedQueue@http://10.0.2.2:8081/index.bundle?platform=android&dev=true&minify=false&app=com.reactapp&modulesOnly=false&runModule=true:2804:21
callFunctionReturnFlushedQueue@[native code]

Other fetch commands work such as fetch('https://jsonplaceholder.typicode.com/todos/1')... and I assume this has to do with it using https but I don't see how I could do that for a server on the same computer. The backend is using flask and I would like to avoid changing that. Any help fixing this would be appreciated.

CodePudding user response：

You need to replace 127.0.0.1 with your network IP Address.