I have some parameters that I want to POST form-encoded to my server:
{
'userName': '[email protected]',
'password': 'Password!',
'grant_type': 'password'
}
I'm sending my request (currently without parameters) like this
var obj = {
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
},
};
fetch('https://example.com/login', obj)
.then(function(res) {
// Do stuff with result
});
How can I include the form-encoded parameters in the request?
CodePudding user response：
You have to put together the x-www-form-urlencoded payload yourself, like this:
var details = {
'userName': '[email protected]',
'password': 'Password!',
'grant_type': 'password'
};
var formBody = [];
for (var property in details) {
var encodedKey = encodeURIComponent(property);
var encodedValue = encodeURIComponent(details[property]);
formBody.push(encodedKey "=" encodedValue);
}
formBody = formBody.join("&");
fetch('https://example.com/login', {
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'
},
body: formBody
})
Note that if you were using fetch in a (sufficiently modern) browser, instead of React Native, you could instead create a URLSearchParams object and use that as the body, since the Fetch Standard states that if the body is a URLSearchParams object then it should be serialised as application/x-www-form-urlencoded. However, you can't do this in React Native because React Native does not implement URLSearchParams.
CodePudding user response：
Even simpler:
fetch('https://example.com/login', {
method: 'POST',
body: new URLSearchParams({
'userName': '[email protected]',
'password': 'Password!',
'grant_type': 'password'
})
});
Docs: https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch
CodePudding user response：
Use URLSearchParams
https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams
var data = new URLSearchParams();
data.append('userName', '[email protected]');
data.append('password', 'Password');
data.append('grant_type', 'password');
CodePudding user response：
Just did this and UrlSearchParams did the trick Here is my code if it helps someone
import 'url-search-params-polyfill';
const userLogsInOptions = (username, password) => {
// const formData = new FormData();
const formData = new URLSearchParams();
formData.append('grant_type', 'password');
formData.append('client_id', 'entrance-app');
formData.append('username', username);
formData.append('password', password);
return (
{
method: 'POST',
headers: {
// "Content-Type": "application/json; charset=utf-8",
"Content-Type": "application/x-www-form-urlencoded",
},
body: formData.toString(),
json: true,
}
);
};
const getUserUnlockToken = async (username, password) => {
const userLoginUri = `${scheme}://${host}/auth/realms/${realm}/protocol/openid-connect/token`;
const response = await fetch(
userLoginUri,
userLogsInOptions(username, password),
);
const responseJson = await response.json();
console.log('acces_token ', responseJson.access_token);
if (responseJson.error) {
console.error('error ', responseJson.error);
}
console.log('json ', responseJson);
return responseJson.access_token;
};
CodePudding user response：
No need to use jQuery, querystring or manually assemble the payload. URLSearchParams is a way to go and here is one of the most concise answers with the full request example:
fetch('https://example.com/login', {
method: 'POST',
body: new URLSearchParams({
param: 'Some value',
anotherParam: 'Another value'
})
})
.then(response => {
// Do stuff with the response
});
The same technique using async / await.
const login = async () => {
const response = await fetch('https://example.com/login', {
method: 'POST',
body: new URLSearchParams({
param: 'Some value',
anotherParam: 'Another value'
})
})
// Do stuff with the response
}
Yes, you can use Axios or any other HTTP client library instead of native fetch.
CodePudding user response：
var details = {
'userName': '[email protected]',
'password': 'Password!',
'grant_type': 'password'
};
var formBody = [];
for (var property in details) {
var encodedKey = encodeURIComponent(property);
var encodedValue = encodeURIComponent(details[property]);
formBody.push(encodedKey "=" encodedValue);
}
formBody = formBody.join("&");
fetch('http://identity.azurewebsites.net' '/token', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded'
},
body: formBody
})
it is so helpful for me and works without any error
refrence : https://gist.github.com/milon87/f391e54e64e32e1626235d4dc4d16dc8
CodePudding user response：
*/ import this statement */
import qs from 'querystring'
fetch("*your url*", {
method: 'POST',
headers: {'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'},
body: qs.stringify({
username: "akshita",
password: "123456",
})
}).then((response) => response.json())
.then((responseData) => {
alert(JSON.stringify(responseData))
})
After using npm i querystring --save it's work fine.
CodePudding user response：
Just Use
import qs from "qs";
let data = {
'profileId': this.props.screenProps[0],
'accountId': this.props.screenProps[1],
'accessToken': this.props.screenProps[2],
'itemId': this.itemId
};
return axios.post(METHOD_WALL_GET, qs.stringify(data))
CodePudding user response：
Just set the body as the following
var reqBody = "username=" username "&password=" password "&grant_type=password";
then
fetch('url', {
method: 'POST',
headers: {
//'Authorization': 'Bearer token',
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
},
body: reqBody
}).then((response) => response.json())
.then((responseData) => {
console.log(JSON.stringify(responseData));
}).catch(err=>{console.log(err)})
CodePudding user response：
You can use FormData and URLSearchParams to post as application/x-www-form-urlencoded with the example below:
If you have a form:
<form>
<input name="username" type="text" />
<input name="password" type="password" />
<button type="submit">login</button>
</form>
You can add use the JS below to submit the form.
const form = document.querySelector("form");
form.addEventListener("submit", async () => {
const formData = new FormData(form);
try {
await fetch("https://example.com/login", {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
},
body: new URLSearchParams(Object.fromEntries(formData)),
});
} catch (err) {
console.log(err);
}
});
CodePudding user response：
If you are using JQuery, this works too..
fetch(url, {
method: 'POST',
body: $.param(data),
headers:{
'Content-Type': 'application/x-www-form-urlencoded'
}
})
CodePudding user response：
According to the spec, using encodeURIComponent won't give you a conforming query string. It states:
- Control names and values are escaped. Space characters are replaced by
, and then reserved characters are escaped as described in [RFC1738], section 2.2: Non-alphanumeric characters are replaced by%HH, a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks are represented as "CR LF" pairs (i.e.,).- The control names/values are listed in the order they appear in the document. The name is separated from the value by
=and name/value pairs are separated from each other by&.
The problem is, encodeURIComponent encodes spaces to be , not .
The form-body should be coded using a variation of the encodeURIComponent methods shown in the other answers.
const formUrlEncode = str => {
return str.replace(/[^\d\w]/g, char => {
return char === " "
? " "
: encodeURIComponent(char);
})
}
const data = {foo: "bar߃©˙∑ baz", boom: "pow"};
const dataPairs = Object.keys(data).map( key => {
const val = data[key];
return (formUrlEncode(key) "=" formUrlEncode(val));
}).join("&");
// dataPairs is "foo=bar߃©˙∑ baz&boom=pow"
CodePudding user response：
You can use react-native-easy-app that is easier to send http request and formulate interception request.
import { XHttp } from 'react-native-easy-app';
* Synchronous request
const params = {name:'rufeng',age:20}
const response = await XHttp().url(url).param(params).formEncoded().execute('GET');
const {success, json, message, status} = response;
* Asynchronous requests
XHttp().url(url).param(params).formEncoded().get((success, json, message, status)=>{
if (success){
this.setState({content: JSON.stringify(json)});
} else {
showToast(msg);
}
});
CodePudding user response：
In the original example you have a transformRequest function which converts an object to Form Encoded data.
In the revised example you have replaced that with JSON.stringify which converts an object to JSON.
In both cases you have 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' so you are claiming to be sending Form Encoded data in both cases.
Use your Form Encoding function instead of JSON.stringify.
Re update:
In your first fetch example, you set the body to be the JSON value.
Now you have created a Form Encoded version, but instead of setting the body to be that value, you have created a new object and set the Form Encoded data as a property of that object.
Don't create that extra object. Just assign your value to body.
CodePudding user response：
wrapped fetch in a simple function
async function post_www_url_encdoded(url, data) {
const body = new URLSearchParams();
for (let key in data) {
body.append(key, data[key]);
}
return await fetch(url, { method: "POST", body });
}
const response = await post_www_url_encdoded("https://example.com/login", {
"name":"ali",
"password": "1234"});
if (response.ok){ console.log("posted!"); }
CodePudding user response：
For uploading Form-Encoded POST requests, I recommend using the FormData object.
Example code:
var params = {
userName: '[email protected]',
password: 'Password!',
grant_type: 'password'
};
var formData = new FormData();
for (var k in params) {
formData.append(k, params[k]);
}
var request = {
method: 'POST',
headers: headers,
body: formData
};
fetch(url, request);