Zig Requires Chilkat v11.5.0+

Box: Refresh and Save Rotated OAuth Tokens

See more Box Examples

Refresh the user token saved by the authorization example. Box refresh tokens are single-use and expire after 60 days. Serialize refreshes for a token pair and save the replacement immediately; do not run concurrent refresh jobs.

See the Box API guide for setup and the complete workflow.

Zig

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

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

    var success: bool = false;

    // Requires Chilkat 11.5.0 or later and a previously unlocked Chilkat bundle.
    // See Global Unlock Sample.
    // Guide: Box API Guide.

    success = false;

    const tokens = try chilkat.JsonObject.init();
    defer tokens.deinit();
    tokens.loadFile("qa_data/tokens/box_oauth.json") catch {
        std.debug.print("{s}\n", .{try tokens.getLastErrorText(alloc)});
        return;
    };

    const oauth2 = try chilkat.OAuth2.init();
    defer oauth2.deinit();
    oauth2.setTokenEndpoint("https://api.box.com/oauth2/token");
    oauth2.setClientId("BOX_CLIENT_ID");
    oauth2.setClientSecret("BOX_CLIENT_SECRET");
    oauth2.setRefreshToken(try tokens.stringOf(alloc, "refresh_token"));
    oauth2.refreshAccessToken() catch {
        std.debug.print("{s}\n", .{try oauth2.getLastErrorText(alloc)});
        return;
    };

    tokens.load(try oauth2.getAccessTokenResponse(alloc)) catch {
        std.debug.print("{s}\n", .{try tokens.getLastErrorText(alloc)});
        return;
    };

    // The previous refresh token is now invalid. Preserve this response even if
    // your normal token-store write fails. Do not retry with the old refresh token.
    tokens.writeFile("qa_data/tokens/box_oauth.json") catch {
        std.debug.print("{s}\n", .{try tokens.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("New access and refresh tokens saved. Do not log their values.\n", .{});
}