I try to send my base64 code to my webservice :
this is my base64 :
I send like this :
let collection= {};
collection.base64 = this.state.data;
fetch('url', {
method: 'POST',
headers: new Headers({
Accept: 'application/json',
'Content-Type': 'application/json', // <-- Specifying the Content-Type
}),
body: JSON.stringify({'JsonWithImage': collection.base64 }), // data can be `string` or {object}!
})
However, as you see it gives error message which is in image. I think because of size of image but I am not sure. Any idea about this ?
Via this post there is a javascript function window.btoa() which encodes data to Base64 string which may work for you.
let collection= {};
collection.base64 = this.state.data;
fetch('url', {
method: 'POST',
headers: new Headers({
Accept: 'application/json',
'Content-Type': 'application/json', // <-- Specifying the Content-Type
}),
body: JSON.stringify({'JsonWithImage': window.btoa(collection.base64) }), // data can be `string` or {object}!
})
Related
We are making an axios POST call from VueJs, need to pass a custom header. The way it is coded now, the custom header is not getting passed to the server script, other headers are getting passed. Please let me know what I might be doing wrong. Appreciate your help.
axios({
method: 'post',
url: urltocall,
data: strjson,
config: {
headers: {
'Access-Control-Allow-Origin': 'http://localhost:1337',
'Accept': 'application/json',
'Content-Type': 'application/json',
'username': 'test1'
}
}
})
.then(function (response) {
}
The headers object should not be put into a "config" object.
It's just...
axios({
method: 'post',
url: urltocall,
{
headers: {
....
Try doing it like this:
axios
.post(urltocall, myDataAsJSON, {
headers: {
"Access-Control-Allow-Origin": "http://localhost:1337",
"Accept": "application/json",
"Content-Type": "application/json",
"username": "test1"
}
})
.then(response => {
console.log("Success: " + response.data);
})
.catch(error => {
console.log("Error: " + error.response.data);
});
By the way, based on your 'Content-Type': 'application/json',, I know you're trying to send a JSON object, but where/what is this object?
Also, refer to the Full documentation for more information.
I try to fetch webservice method. However, it takes string. How can I send string parameter to webservice ?
I tried like this :
fetch('url/MethodName', {
method: 'POST',
headers: new Headers({
Accept: 'application/json',
'Content-Type': 'application/json',
}),
})
where should I put string parameter ?
by mozilla
var url = 'https://example.com/profile';
var data = {username: 'example'};
fetch(url, {
method: 'POST', // or 'PUT'
body: JSON.stringify(data), // data can be `string` or {object}!
headers:{
'Content-Type': 'application/json'
}
}).then(res => res.json())
.then(response => console.log('Success:', JSON.stringify(response)))
.catch(error => console.error('Error:', error));
send Json data as parameter
You can do that with fetch, but try to use Axios for making http requests
https://kapeli.com/cheat_sheets/Axios.docset/Contents/Resources/Documents/index
I try to send my Image from react-native to my database.
it sends my image's base64 code. However, base64 code is too long so my webservice doesnt take all of them. How can I send it ?
This is what I tried :
selectPhoto = () => {
const options = {};
ImagePicker.showImagePicker(options, response => {
if (response.uri) {
this.setState({ data: response.data });
}
});
}
sendImage() {
fetch('url', {
method: 'POST',
headers: new Headers({
Accept: 'application/json',
'Content-Type': 'application/json', // <-- Specifying the Content-Type
}),
body: JSON.stringify(this.state.data), // data has base64 code
})
}
I got this error:
Parsing error: Unexpected token, expected ,
I searched on web and I tried but nothing solved. Also I dont see any mistake here
constructor(props) {
super(props);
fetch('url', {
method: 'POST',
headers: new Headers({
Accept: 'application/json',
'Content-Type': 'application/json', // <-- Specifying the Content-Type
}),
body: JSON.stringify(collection) // <-- Post parameters
})
.then((response) => response.text())
.then(leaders => {
console.log(leaders);
}
} <---- here it gives error
fetch('url', {
method: 'POST',
headers: new Headers({
Accept: 'application/json',
'Content-Type': 'application/json', // <-- Specifying the Content-Type
}),
body: JSON.stringify(collection), // <-- Post parameters
})
.then(response => response.text())
.then((leaders) => {
console.log(leaders);
}); // << here's your issue ... missing `)`
SUGGESTION
Use async-await syntax for more readaable and easy to debug async code
I need do a post request with fetch
like this
in Postman.
And what I've tried :
let formData = new FormData();
formData.append('username', String(username));
formData.append('password', String(password));
let init = {
method: 'POST',
header:{
'Content-Type': 'application/x-www-form-urlencoded'
},
body: formData
}
fetch(url, init)
It's successful in Postman but failed with fetch that return a 400 error with no param. Hope some helps , thanks
So I changed my code
var details = {
'username': '123',
'password': '123',
};
var formBody = [];
for (var property in details) {
var encodedKey = encodeURIComponent(property);
var encodedValue = encodeURIComponent(details[property]);
formBody.push(encodedKey + "=" + encodedValue);
}
formBody = formBody.join("&");
let init = {
method: 'POST',
header:{
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded'
},
body: formBody
}
fetch(url, init)
But get a same error
console the formBody:
username=123&password=123
My headers key was wrong ,that was the fault
should be:
let init = {
method: 'POST',
headers:{
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded'
},
body: formBody
}
instead of
let init = {
method: 'POST',
header:{
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded'
},
body: formBody
}
Status code 400 means you sent a bad request, i.e. the server expected something else.
In this case you're sending raw multipart/form-data (the first option in Postman), while you say you are sending x-www-form-urlencoded in your headers.
Since you'll want to use the latter according to your Postman screenshot, you have to send your body in x-www-form-urlencoded format.