(Mono C#) Shopware 6 - Get OAuth2 Access Token using Username and Password

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Demonstrates how to get an OAuth2 access token using your username and password.

For more information, see https://docs.shopware.com/en/shopware-platform-dev-en/admin-api-guide/authentication

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

Chilkat.Http http = new Chilkat.Http();
bool success;

// Sends the following POST

// 	{
// 	    "client_id": "administration",
// 	    "grant_type": "password",
// 	    "scopes": "write",
// 	    "username": "<user-username>",
// 	    "password": "<user-password>"
// 	}

// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON

// The following JSON is sent in the request body.

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("client_id","administration");
json.UpdateString("grant_type","password");
json.UpdateString("scopes","write");
json.UpdateString("username","<user-username>");
json.UpdateString("password","<user-password>");

Chilkat.HttpResponse resp = http.PostJson3("https://my-shopware-6-shop.de/api/oauth/token","application/json",json);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
resp.GetBodySb(sbResponseBody);
Chilkat.JsonObject jResp = new Chilkat.JsonObject();
jResp.LoadSb(sbResponseBody);
jResp.EmitCompact = false;

Debug.WriteLine("Response Body:");
Debug.WriteLine(jResp.Emit());

int respStatusCode = resp.StatusCode;
Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(resp.Header);
    Debug.WriteLine("Failed.");

    return;
}

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "token_type": "Bearer",
//   "expires_in": 600,
//   "access_token": "xxxxxxxxxxxxxx",
//   "refresh_token": "token"
// }

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

string token_type = jResp.StringOf("token_type");
int expires_in = jResp.IntOf("expires_in");
string access_token = jResp.StringOf("access_token");
string refresh_token = jResp.StringOf("refresh_token");

// Save our JSON to a file (to be used in other examples..)
success = jResp.WriteFile("qa_data/tokens/shopware6.json");