I'm using Axios library to make an API call in my React application.I call the API and then populate a table using React.
My Axios call is as follows:
axios({
method: 'get',
url: DataURL,
headers: {
'Content-Type' : 'application/json',
'Id': user.Id,
'Name' : user.Name,
'api-token' : user.access_token,
'clientId' : 'web',
},
responseType: 'json',
})
.then((response) => {
this.setState({ tableData: response.data });
});
However I get this error:
XMLHttpRequest cannot load MY API URL Response for preflight has invalid HTTP status code 400
The same was working in my dev environment where I wasn't adding any headers, however after migrating to new env which required me to add headers, Im getting the above error.
My question is, is this a client side issue(like wrong header format etc) or is it something to do with server side handling of the API call?
I think this is a server-side issue. If you are using node in the background you need CORS as a middleware (https://www.npmjs.com/package/cors).
For other server solutions there are of course also cors request handler.
Related
I have a React application where I am changing POST method to GET with the request body as it is. It works fine with POST request however when I change the method to GET, it gives me error-
message: "org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public
My Front End Code-
export const setData = (getData) => dispatch => {
axios({
method: 'GET',
url: 'http://localhost:8080/api',
headers: {
'Content-Type': 'application/json'
},
data: getData
})
.then (response => {
dispatch({
type: API_DATA,
payload: response.data
})
dispatch({
type: SET_SEARCH_LOADER,
payload: false
})
})
.catch(function(error) {
})
}
Can someone let me know what I am missing here. As per my understanding, http allows to have a request body for GET method.
As per my understanding, http allows to have a request body for GET method.
While this is technically true (although it may be more accurate to say that it just doesn't explicitly disallow it), it's a very odd thing to do, and most systems do not expect GET requests to have bodies.
Consequently, plenty of libraries will not handle this.
The documentation for Axois says:
// `data` is the data to be sent as the request body
// Only applicable for request methods 'PUT', 'POST', and 'PATCH'
Under the hood, if you run Axios client side in a web browser, it will use XMLHttpRequest. If you look at the specification for that it says:
client . send([body = null])
Initiates the request. The body argument provides the request body, if any, and is ignored if the request method is GET or HEAD.
If you want to send parameters with get request in axios, you should send parameters as params.
If you want to set "Content-type":"application/json" and send params with get request, you should also send an empty data object.
For example:
const AUTH_TOKEN = 'Bearer token'
const config = {
headers: {
'Content-Type': 'application/json',
'Accept': 'application/json',
'Authorization': AUTH_TOKEN,
},
data: {},
params: {
"post_id": 1
}
}
axios.get("http://localhost/api/v1/posts/", config)
This is not axios, the error origniates from the java backend you're talking to. The public field in your request body is missing.
If you just want to send the data as parameters (which would be odd), pass it using params instead of data (as shown here: https://github.com/axios/axios#example).
I personally don't think your API should support GET with a request body (talk to the devs and ask for documentation).
I have a React application where I am changing POST method to GET with the request body as it is. It works fine with POST request however when I change the method to GET, it gives me error-
message: "org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public
My Front End Code-
export const setData = (getData) => dispatch => {
axios({
method: 'GET',
url: 'http://localhost:8080/api',
headers: {
'Content-Type': 'application/json'
},
data: getData
})
.then (response => {
dispatch({
type: API_DATA,
payload: response.data
})
dispatch({
type: SET_SEARCH_LOADER,
payload: false
})
})
.catch(function(error) {
})
}
Can someone let me know what I am missing here. As per my understanding, http allows to have a request body for GET method.
As per my understanding, http allows to have a request body for GET method.
While this is technically true (although it may be more accurate to say that it just doesn't explicitly disallow it), it's a very odd thing to do, and most systems do not expect GET requests to have bodies.
Consequently, plenty of libraries will not handle this.
The documentation for Axois says:
// `data` is the data to be sent as the request body
// Only applicable for request methods 'PUT', 'POST', and 'PATCH'
Under the hood, if you run Axios client side in a web browser, it will use XMLHttpRequest. If you look at the specification for that it says:
client . send([body = null])
Initiates the request. The body argument provides the request body, if any, and is ignored if the request method is GET or HEAD.
If you want to send parameters with get request in axios, you should send parameters as params.
If you want to set "Content-type":"application/json" and send params with get request, you should also send an empty data object.
For example:
const AUTH_TOKEN = 'Bearer token'
const config = {
headers: {
'Content-Type': 'application/json',
'Accept': 'application/json',
'Authorization': AUTH_TOKEN,
},
data: {},
params: {
"post_id": 1
}
}
axios.get("http://localhost/api/v1/posts/", config)
This is not axios, the error origniates from the java backend you're talking to. The public field in your request body is missing.
If you just want to send the data as parameters (which would be odd), pass it using params instead of data (as shown here: https://github.com/axios/axios#example).
I personally don't think your API should support GET with a request body (talk to the devs and ask for documentation).
I am moving my project from jQuery to axios. It is working fine in other places but I am getting error in one specific place. axios is giving CORS error but jquery working fine. Here is the code:
jQuery
$.ajax({
url: 'my-url-here',
type: 'post',
data: JSON.stringify({
"attachmentNames": [ "filename.pdf" ]
}),
success: function (data) {
console.info(data);
}
});
axios
axios({
url: 'my-url-here',
method: 'post',
data: {
"attachmentNames": [ "filename.pdf" ]
}
}).then(function(resp) {
console.log(resp);
});
Browsers will send a preflight request if you send a Content-Type with a value that isn't on a very short list.
application/json will trigger a preflight.
Axios will, by default, encode data as JSON and say it is sending JSON.
In your jQuery, you are manually encoding the data as JSON and failing to set the correct Content-Type header. As a result you are lying to the server and claiming the data is application/x-www-form-urlencoded (the default for jQuery). This header doesn't need a preflight request.
Configure the server to respond to a preflight request with permission (in Access-Control-Allow-Headers) to change the Content-Type.
I have a React application where I am changing POST method to GET with the request body as it is. It works fine with POST request however when I change the method to GET, it gives me error-
message: "org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public
My Front End Code-
export const setData = (getData) => dispatch => {
axios({
method: 'GET',
url: 'http://localhost:8080/api',
headers: {
'Content-Type': 'application/json'
},
data: getData
})
.then (response => {
dispatch({
type: API_DATA,
payload: response.data
})
dispatch({
type: SET_SEARCH_LOADER,
payload: false
})
})
.catch(function(error) {
})
}
Can someone let me know what I am missing here. As per my understanding, http allows to have a request body for GET method.
As per my understanding, http allows to have a request body for GET method.
While this is technically true (although it may be more accurate to say that it just doesn't explicitly disallow it), it's a very odd thing to do, and most systems do not expect GET requests to have bodies.
Consequently, plenty of libraries will not handle this.
The documentation for Axois says:
// `data` is the data to be sent as the request body
// Only applicable for request methods 'PUT', 'POST', and 'PATCH'
Under the hood, if you run Axios client side in a web browser, it will use XMLHttpRequest. If you look at the specification for that it says:
client . send([body = null])
Initiates the request. The body argument provides the request body, if any, and is ignored if the request method is GET or HEAD.
If you want to send parameters with get request in axios, you should send parameters as params.
If you want to set "Content-type":"application/json" and send params with get request, you should also send an empty data object.
For example:
const AUTH_TOKEN = 'Bearer token'
const config = {
headers: {
'Content-Type': 'application/json',
'Accept': 'application/json',
'Authorization': AUTH_TOKEN,
},
data: {},
params: {
"post_id": 1
}
}
axios.get("http://localhost/api/v1/posts/", config)
This is not axios, the error origniates from the java backend you're talking to. The public field in your request body is missing.
If you just want to send the data as parameters (which would be odd), pass it using params instead of data (as shown here: https://github.com/axios/axios#example).
I personally don't think your API should support GET with a request body (talk to the devs and ask for documentation).
I made the following post request to a 3rd party api, from my web frontend, using axios, but it couldn't go through.
Axios({
method: 'post',
url: 'https://some.website.com/oauth/token',
data: {
client_secret: 'revmisodtoire43-00j232onfkdl',
code: '54728349765905473289',
grant_type: 'authorization_code'
}
})
.then(res => {
console.log('client info: ', res);
});
The error says:Failed to load https://some.website.com/oauth/token: Response for preflight is invalid, and then network error.
When I made the same request via curl, it went through with no problem.
I know this is CORS related, but am not sure what to do with it. Any suggestions?
Check whether content-type is being added in the header's, if not try adding this
'Access-Control-Allow-Origin': '*' in the request headers