Fetch client having an issue with JSON array assignment

Fetch client having an issue with JSON array assignment

By : Viobel
Date : November 19 2020, 03:01 PM
Hope that helps I believe your specific issue may be caused by an older version of TypeScript (2.1, the latest is 2.5). If you have an opportunity to do so, you can try updating it.
response in the statement response => is of type Response defined by Aurelia. When you are running this.files = files, it seems like TypeScript thinks that files is of type Response. You are already implicitly declaring this.files as type any[], so the assignment is not allowed.
code :
.then((files: any[]) => this.files = files);

Share : facebook icon twitter icon
Encode JSON From MySQL Fetch Assoc & Fetch Array

Encode JSON From MySQL Fetch Assoc & Fetch Array

By : jajoko
Date : March 29 2020, 07:55 AM
this one helps. You can just do the calculation in SQL, without having to add the column.
code :
SELECT FirstName, LastName, NumberOfChildren, SchoolTuition, 
    (NumberOfChildren * SchoolTuiton) AS TotalSchoolTuiton 
FROM User WHERE User.Username = '$Username' LIMIT 1
Can I fetch a Readable Stream then convert to JSON client side?

Can I fetch a Readable Stream then convert to JSON client side?

By : Fsherratt
Date : March 29 2020, 07:55 AM
around this issue Since CSV is simply text, the solution is the use the response.text() method of the fetch() API.
code :
  .then(response => response.text())

function transform(str) {
  let data = str.split('\n').map(i=>i.split(','));
  let headers = data.shift();
  let output = data.map(d=>{obj = {};headers.map((h,i)=>obj[headers[i]] = d[i]);return obj;});
json = JSON.stringify(output);
Why does using a destructuring assignment on a fetch response cause the .json() method to disappear?

Why does using a destructuring assignment on a fetch response cause the .json() method to disappear?

By : Brahim Ayari
Date : March 29 2020, 07:55 AM
will help you
The rest operator breaks it, which I do not understand. Is it making a new object and refusing to copy properties over?
code :
const response = await fetch('https://reqres.in/api/users?page=2');
const { json } = response;
console.log(await json.call(response));
React-native array data assignment with fetch

React-native array data assignment with fetch

By : user2449275
Date : March 29 2020, 07:55 AM
may help you . You can create a class component with the initial state of data as an empty array, and then get the real data in the componentDidMount hook and put it in state.
code :
function getMoviesFromApiAsync() {
  return fetch("http://localhost:8080/JweSecurityExample/rest/security/retrieveItems")
    .then(response => response.json())
    .catch(error => {

class App extends React.Component {
  state = {
    data: []

  componentDidMount() {
    getMoviesFromApiAsync().then(data => {
      this.setState({ data });

  render() {
    return <div>{JSON.stringify(this.state.data)}</div>;
issue while fetch data from nested json array

issue while fetch data from nested json array

By : user2960172
Date : March 29 2020, 07:55 AM
I hope this helps you . I am fetch JSON data from API and I am getting response successfully but there are some issue for me that how to get direct value without key first let me show you my response , You should create these models for response:
code :
/// Main response model
struct ResponseModel: Codable {
    let message: String
    let success: String
    let messageList: [[String: [MessageList]]]

    enum CodingKeys: String, CodingKey {
        case message, success
        case messageList = "message_list"

/// MessageList Model
struct MessageList: Codable {
    let body: String
    let from: String
    let sid: String
    let status: Status
    let dateSent: String
    let dateCreated
    let dateUpdated
    let to: String

    enum CodingKeys: String, CodingKey {
        case body, from, sid, status
        case dateSent = "date_sent"
        case dateCreated = "date_created"
        case dateUpdated = "date_updated"
        case to

/// For status field
enum Status: String, Codable {
    case delivered = "delivered"
    case received = "received"
    case sent = "sent"
/// YOU MUST CHANGE 'ResponseType' with the real type of response

func messageListAPI(_ completion: @escaping (ResponseType) -> Void) {
    let urlString = "http://yourUrl"
    Alamofire.request(urlString).response { response in
        guard let data = response.data else { return }
        do {
            let decoder = JSONDecoder()
            let response: ResponseType = try decoder.decode(ResponseModel.self, from: data)
            let numberList = response.messageList.compactMap({ $0.keys })
            print("my numberList -> \(numberList)")

        } catch let error {
messageListAPI { response in
    /// If response is nil it's means error appear.
    /// Otherwise it is successful
guard let yourUrl = URL(string: "https://myUrl") else { return }
URLSession.shared.dataTask(with: yourUrl) { (data, response , error) in      
    guard let data = data else { return }
    do {
    let decoder = JSONDecoder()
    let data = try decoder.decode(ResponseModel.self, from: data)
    } catch let error {
        print("Err", error)
let numberList = ResponseModel.messageList.compactMap({ $0.keys })
Related Posts Related Posts :
  • Javascript deserializer not working for special characters
  • MSON to JSON-Schema "One of" issue
  • Logstash JSON input with escaped double quote
  • Convert JSON.parse() position into line number and column
  • Importing big JSON into ElasticSearch gives no response
  • java.lang.NoSuchMethodError: No such DSL method 'readJSON'
  • Pass server variable into client side script
  • Combining Dictionary and writing into a text file and reading again as dictionary?
  • Angular - print element of JSON just once
  • Get total number of occurrences of a string in json using jq
  • Go's .(type) Does Something Unexpected When Unmarshaling JSON
  • JSON4S type hint does not work
  • Parse json in init, using Decodable protocol
  • Unnest json file with coordinates into dataframe in R
  • Count and remove duplicates in jq
  • Bash and jq - Find a key contained in a variable and change it's value
  • Implicit conversion of generic type T to JsValue in Play! Framework
  • How to store thousands of CSV files on Hadoop HDFS
  • Error when trying to read JSON array using Should, Mocha, & Supertest
  • Create generic Java classes without modifying JSON data
  • Parsing JSON using Decodable and CodingKeys in Swift 4
  • Getting row_number for from jsonb_array_elements or jsonb_to_recordset
  • How to provide API clients with up-to-date validation rules for an endpoint?
  • Creating hash of hashes from list of network interface config files in perl
  • Get unique strings from group of strings using JQ
  • Ignore non-Codable optional properties in Codable object
  • Fitnesse JSON expectation syntax
  • Unmarshall JSON with a [int]string map contained in an array
  • R dataframe with list of dictionaries as field
  • Umbraco 7 custom property editor valueType not being used
  • Error using Alamofire/SwiftyJSON in swift 4.0
  • How to have npm dependencies from different registries in the package.json?
  • sample of a large json file
  • Angular 4:match nested json item-value on event with the same item-value in other objects
  • Loop Json Links Swift
  • Getting Model Data for XAML Preview
  • Typescript - remove null values from json
  • jq merge json array elements
  • GraphQL/ React throws Network Error JSON.parse: unexpected character at line 1 column 1 of the JSON data
  • Looping a array of JSON object having array as property through Handlebars
  • Azure ARM - Inline Conditional Statement
  • How to decode a nested JSON struct with dynamic variable from API call
  • Unity3D JSON Deserializing Empty List?
  • convert JavaScript nested array for priming tree format
  • End up loop once the next document starts (Python 3)
  • Firebase rule - how to restrict value to boolean?
  • How to Load Postman Collection File in Postman App Automatically
  • how to replace numbers in a JSON document with corresponding values in a text file
  • How to read the data in json format?
  • How can i match fields with wildcards using jq?
  • Set enumarated value in JSON schema
  • use curl to POST multipart/form-data, file and lots of key-value pairs
  • Getting keys and values from the rows of an RDD of stringified json
  • swift create jsonArray from NSMutableArray
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org