Rust Requires Chilkat v11.0.0+

Get eBay Application Token

See more eBay Examples

This example shows how to request an eBay Application token. Rust

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// See the Ebay documentation about Access token types
// Also see the Ebay documentation about client credentials grant flow

let http = chilkat::Http::new();

// If using the sandbox, the target endpoint will be:
// POST https://api.sandbox.ebay.com/identity/v1/oauth2/token

// If using the production (live) system, the target endpoint will be:
// POST https://api.ebay.com/identity/v1/oauth2/token

// The eBay client_id and client_secret needs to be sent
// in a Basic Authorization  request header, which has this format:
// Authorization: Basic <B64_encoded_oauth_credentials>

// Chilkat takes care of it.  You only need to set the Login = client_id,
// and password = client_secret, and indicate you want "Basic" HTTP Authorization.
http.set_login("EBAY_CLIENT_ID");
http.set_password("EBAY_CLIENT_SECRET");
http.set_basic_auth(true);

// Let's do the following POST:

//   HTTP method:   POST
//   URL (Sandbox): https://api.sandbox.ebay.com/identity/v1/oauth2/token
// 
//   HTTP headers:
//     Content-Type = application/x-www-form-urlencoded
//     Authorization = Basic <B64-encoded-oauth-credentials>
// 
//   Request body (wrapped for readability):
//     grant_type=client_credentials&
//     redirect_uri=<RuName-value>&
//     scope=<SPACE separated list of scopes>
// 

// Create an HttpRequest object to hold the request params.
let req = chilkat::HttpRequest::new();
req.set_http_verb("POST");
req.add_param("grant_type", "client_credentials");

// The scope query param indicates the access to be provided by the token.
// Multiple scopes can be specified by separating each with a SPACE char.
// See the Ebay OAuth scopes documentation

req.add_param("scope", "https://api.ebay.com/oauth/api_scope");

let end_point = "https://api.sandbox.ebay.com/identity/v1/oauth2/token".to_string();
req.set_content_type("application/x-www-form-urlencoded");

let resp = chilkat::HttpResponse::new();
if http.http_req(&end_point, &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

// The response is JSON..
let json = chilkat::JsonObject::new();
let _ = json.load(&resp.body_str());
json.set_emit_compact(false);

// If the response status code is not 200, then it failed.
println!("Response status code = {}", resp.status_code());
if resp.status_code() != 200 {
    println!("{}", json.emit().unwrap_or_default());
    println!("Failed.");
    return;
}

// We successfully retrieved an eBay access token.
// The actual access token string can be parsed from the JSON like this:
let access_token = json.string_of("access_token").unwrap_or_default();

// This application token is only valid for 7200 seconds (2 hours).  We'll want to refresh
// it before it expires.  (There is an online example for that..)
// For now, let's save the JSON to a file for our application to use.

// But before doing that, let's add to the JSON an expiration timestamp
// so we know when to refresh the token.
let dt_expire = chilkat::DateTime::new();
let _ = dt_expire.set_from_current_system_time();
let _ = dt_expire.add_seconds(json.int_of("expires_in"));
let _ = json.append_string("expire_time", &dt_expire.get_as_timestamp(false).unwrap_or_default());

// Persist the JSON to a file.
let fac = chilkat::FileAccess::new();
if fac.write_entire_text_file("qa_data/tokens/ebay.json", &json.emit().unwrap_or_default(), "utf-8", false).is_err() {
    println!("{}", fac.last_error_text());
    println!("Failed to save eBay Application token to file.");
    return;
}

println!("{}", json.emit().unwrap_or_default());
println!("Success.");

// The output of this example is:

// 	{ 
// 	  "access_token": "v^1.1#i^1#p^1#I^3#r^0# ... Ajp1BQhJDgAA",
// 	  "token_type": "Application Access Token",
// 	  "expires_in": 7200,
// 	  "refresh_token": "N/A",
// 	  "expire_time": "2017-04-16T14:44:20Z"
// 	}
// 
// 	Success.
//