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React Native Fetch Requests are not getting sent to my Node Js backend for some users


React Native Fetch Requests are not getting sent to my Node Js backend for some users

By : telescopicarm
Date : November 22 2020, 04:01 AM
will help you This was the answer: https://stackoverflow.com/a/33617414/6542299
Turns out I was encoding my token with the users' document. the users' document was too large. so I just needed to reduce it
code :


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React Fetch() my local Node Express backend; Cannot return get request String value

React Fetch() my local Node Express backend; Cannot return get request String value


By : Arthur Valin
Date : March 29 2020, 07:55 AM
I hope this helps . I'm setting up a local backend server with node, and I'm trying use fetch to get values to render in my frontend react app. I've gotten most of the way, as everything compiles, however I'm running into issues with fetching the correct values. Or at least, I think I'm doing everything correctly. , the res.json() is still returning a promise, try this out:
code :
  componentDidMount() {
    fetch("/foo").then(res =>
      res.json().then(data => {
        console.log("data", JSON.stringify(data, null, 4));
        // here you can set state
        //...
      })
    );
  }
Are requests made by React Native Fetch API captured by Firebase Performance Monitoring?

Are requests made by React Native Fetch API captured by Firebase Performance Monitoring?


By : lning52yx
Date : March 29 2020, 07:55 AM
I wish this helpful for you After 2 days passed, requests finally started to appear in the console (even they hadn't been categorized). So here are answers to my questions:
Q: Are requests made by React Native Fetch API captured by Firebase Performance Monitoring? A: Yes
React Native - Invariant Violation: Objects are not valid as a React Child (Using Node JS for backend)

React Native - Invariant Violation: Objects are not valid as a React Child (Using Node JS for backend)


By : user1788559
Date : March 29 2020, 07:55 AM
With these it helps Based on your response object in the Postman, you need to do the following
code :
this.state = {
        orderDet: this.props.navigation.state.params.orderDet,
        numOrder: null,
        TotalSum: null,
};

fetchSum = async () => {
        const response = await fetch("http://192.168.254.104:3308/OrderNo/ForSum/" + this.state.orderDet)
        const json = await response.json()
        this.setState({ TotalSum: json[0].TotalAmountOrdered })
    }

fetchNumOrders = async () => {
        const response = await fetch("http://192.168.254.104:3308/NumOrder/num/" + this.state.orderDet )
        const json = await response.json()
        this.setState({ numOrder: json[0].TotalItemsOrdered })
    }
Parallel fetch requests in react native

Parallel fetch requests in react native


By : adrian trejo
Date : March 29 2020, 07:55 AM
wish helps you The number of connections per host is limited to four in iOS. You need to increase HTTPMaximumConnectionsPerHost in NSURLSession.
The ugly way to test this is to directly add the following line to node_modules/react-native/Libraries/Network/RCTHTTPRequestHandler.m: NSURLSessionConfiguration
code :
[configuration setHTTPMaximumConnectionsPerHost:25];
React Native: Fetch requests are not working with remote debugger active (Android)

React Native: Fetch requests are not working with remote debugger active (Android)


By : Ifeanyi Mbah
Date : March 29 2020, 07:55 AM
This might help you I should've come back to this to say I found an answer. Required on Android only but simply use this:
code :
import 'babel-polyfill';
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