Dynamics Community Forum Thread Details

cross domain web api call from CRM using JavaScript

i want to validate address for that i have made web api call onsave.

wen i call to cross domain api for validate data at that time i am facing below issue.

Access to fetch at 'api.easypost.com/.../addresses' from origin 'toastmastersdevtrng.crm.dynamics.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.

working fine in postman.

my code is below.

var myHeaders = new Headers();

myHeaders.append("Content-Type", "application/json");

myHeaders.append("Accept", "application/json");

myHeaders.append("authorization", "Basic ---------------------");

myHeaders.append("crossDomain", "true");

myHeaders.append("Access-Control-Allow-Origin", "">devtrng.crm.dynamics.com/");

myHeaders.append("Access-Control-Allow-Credentials", "true");

myHeaders.append("Access-Control-Allow-Methods", "POST");

myHeaders.append("Access-Control-Allow-Headers", "Overwrite, Destination, Content-Type, Depth, User-Agent, Translate, Range, Content-Range, Timeout, X-File-Size, X-Requested-With, If-Modified-Since, X-File-Name, Cache-Control, Location, Lock-Token,DAV, content-length, Allow");

myHeaders.append("Access-Control-Max-Age", "3600");

var raw = JSON.stringify({"street1":"9127 S Jamaica St","street2":"","city":"Englewood","state":"CO","zip":"80112","country":"United States","verify":["delivery"]});

var requestOptions = {

method: 'POST',

headers: myHeaders,

body: raw,

redirect: 'follow'

};

fetch("">api.easypost.com/.../addresses", requestOptions)

.then(response => response.text())

.then(result => console.log(result))

.catch(error => console.log('error', error));

Please help to archive this.

Thanks in advance!!