ReactJS fetch post API 405 issue - json

Question

I am using swagger to post APi which works fine, but when I post it from react jsm that cause 405 issue.
Fiddler appears the RAW information for swagger as following:
POST http://localhost:7100/api/test/submit?guid=17327026-4348-4ce9-aceb-5774c3a724bf HTTP/1.1
Host: localhost:7100
Connection: keep-alive
Content-Length: 14
Origin: http://localhost:7100
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.78 Safari/537.36
Content-Type: application/json
Accept: */*
Referer: http://localhost:7100/swagger/ui/index
Accept-Encoding: gzip, deflate, br
Accept-Language: en,en-US;q=0.8,zh;q=0.6,zh-CN;q=0.4
Cookie: ASP.NET_SessionId=yzdydpdimqvgpvejykzjqqqb; .ASPXAUTH=dWLGc_XQvl3qTNrEJXsRyk3w-tXBSFeXKC0bIUDzLDLFJi5kbSAt_hcJXQs0-pfz7uVm-VJ27ZGAbN8eErCNV-Wozn3D1ZbHD7ONNN5VCMjT_Joyz_1aIcTZLR401s0TtC4Br1sRlerv0zX4F4xnDLhrIm5YKkGfZj2aZzDgc-KjNPVWY1SEC6k2XqPq54vo9_HUvudihHGlneNx1n2JlodvFxAeYudKnUSBRWpp2rRAx94uF7KmmP5BQoTmBTTq1qKSv98YiPToicePFR32d9yk1Uw1qcFrnkKD2zKOCuJByNgCLN_eC5dOmdLKfPCekciEJ16KfeYg8XeApIf13vCrtGOy-L2EXibWuEjUjKCrUy8sfYTGNZbxDffTg9gNOn7-nfyR5hKLYDM0CxfmENV7S0ExTSFyGhsR5aqqB3oXq3A_i8ENabgGMy_tFyor06S7_vrUUcDlS2hFgsxWzgMrRUdVIlohHK2-slPdbhwuUKIZXKKiSQijwH0RskwF-l8RyVe_0VCcCVipk4MXtncDvrubmEW09LWeOycyc0wc1BmMHL9AATpBHA6WBNLEaMGS9-x-RhFC5YNJW1KtetmlXiaKmiX9L-2wWhVRgjlhmfjtRPjxlVvW1GxyeKC-JOlSPnY6DInNM-qa2dcZjdaoffdnLBvzKTHkJNwzUSZw8fN-Vz6SVmURMtpEQAKmxloNvw
"test working"
for post from react as following:
OPTIONS http://localhost:7100/api/test/submit?guid=17327026-4348-4CE9-ACEB-5774C3A724BF HTTP/1.1
Host: localhost:7100
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
Access-Control-Request-Method: POST
Origin: http://localhost:3000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.78 Safari/537.36
Access-Control-Request-Headers: content-type
Accept: */*
Referer: http://localhost:3000/?testId=17327026-4348-4ce9-aceb-5774c3a724bf
Accept-Encoding: gzip, deflate, br
Accept-Language: en,en-US;q=0.8,zh;q=0.6,zh-CN;q=0.4
I believe something wrong in following fetch post function, is there any chance to fix it, then the RAW information can be same as first one.
onFormSubmit(Result) {
fetch("http://localhost:7100/api/test/submit?guid=" + "17327026-4348-4CE9-ACEB-5774C3A724BF",
{
method: 'POST',
// headers: {'Content-Type':'application/x-www-form-urlencoded'},
headers: {'Content-Type':'application/json'},
// contentType: 'application/json; charset=utf-8',
// body: JSON.stringify(result)
body: "test working"
})
.then((response) => {
console.log(response.ok ? 'success' : 'error');
})
.catch(function (error) {
console.log('catch error');
});
}

Answer 1

This is a CORS Issue You need to allow requests comming from http://localhost:3000 in you server.