Zig Requires Chilkat v11.5.0+

curl with OAuth2 Client Credentials

See more CURL Examples

This example shows how to run a simple CURL command with an OAuth2 access token for authorization. We use CURL to retrieve a SharePoint site ID, and Chilkat automatically fetches the OAuth2 access token using the provided credentials. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example will run the following curl command

    // curl -X GET "https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}" \
    //   -H "Authorization: Bearer ACCESS_TOKEN" \
    //   -H "Accept: application/json"

    const sb = try chilkat.StringBuilder.init();
    defer sb.deinit();
    sb.appendLn("curl -X GET \"https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}\" \\") catch {};
    sb.appendLn("  -H \"Authorization: Bearer ACCESS_TOKEN\" \\") catch {};
    sb.appendLn("  -H \"Accept: application/json\"") catch {};

    // Build the JSON that provides information for getting the OAuth2 access token using the OAuth2 client credentials flow.
    const json_o_auth2 = try chilkat.JsonObject.init();
    defer json_o_auth2.deinit();

    json_o_auth2.updateString("oauth2.client_id", "CLIENT_ID") catch {};
    json_o_auth2.updateString("oauth2.client_secret", "CLIENT_SECRET") catch {};
    json_o_auth2.updateString("oauth2.scope", "https://graph.microsoft.com/.default") catch {};
    json_o_auth2.updateString("oauth2.token_endpoint", "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token") catch {};

    const http_curl = try chilkat.HttpCurl.init();
    defer http_curl.deinit();

    // Provide the information for getting the OAuth2 access token from the token endpoint
    // Note: The Authorization header specified in the curl command will be ignored and replaced using the OAuth2 access token obtained at runtime from the token endpoint.
    http_curl.setAuth(json_o_auth2) catch {};

    // The placeholders {{sharepoint_hostname}} and {{site_name}} represent variables that must be defined before execution.
    // When DoYourThing runs the curl command, it automatically substitutes these placeholders with their corresponding values.
    // Below are the values assigned to these variables:
    http_curl.setVar("sharepoint_hostname", "example.sharepoint.com");
    http_curl.setVar("site_name", "test");

    // Run the curl command.
    http_curl.doYourThing(try sb.getAsString(alloc)) catch {
        std.debug.print("{s}\n", .{try http_curl.getLastErrorText(alloc)});
        return;
    };

    const response_json = try chilkat.JsonObject.init();
    defer response_json.deinit();
    response_json.setEmitCompact(false);

    http_curl.getResponseJson(response_json) catch {};

    const status_code = http_curl.getStatusCode();
    std.debug.print("response status code: {d}\n", .{status_code});

    std.debug.print("{s}\n", .{try response_json.emit(alloc)});
}