Zig Requires Chilkat v11.0.0+

Xero List Attachments for an Item (such as an Invoice)

See more Xero Examples

Demonstrates how to get information about the attachments for a particular Xero item. Zig

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

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

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

    const http = try chilkat.Http.init();
    defer http.deinit();

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

    http.setAuthToken(try json_token.stringOf(alloc, "access_token"));

    // Replace the value here with an actual tenant ID obtained from this example:
    // Get Xero Tenant IDs
    http.setRequestHeader("Xero-tenant-id", "83299b9e-5747-4a14-a18a-a6c94f824eb7");

    http.setAccept("application/json");

    const url = "https://api.xero.com/api.xro/2.0/{$Endpoint}/{$Guid}/Attachments/";

    // Endpoint can be Invoices, Receipts, CreditNotes, PurchaseOrders, etc.
    http.setUrlVar("Endpoint", "Invoices") catch {};

    // Guid is the ID of the item, such as the InvoiceID.
    http.setUrlVar("Guid", "0032f627-3156-4d30-9b1c-4d3b994dc921") catch {};

    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpNoBody("GET", url, resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Response Status Code: {d}\n", .{resp.getStatusCode()});

    const json_response = try chilkat.JsonObject.init();
    defer json_response.deinit();
    json_response.load(try resp.getBodyStr(alloc)) catch {};
    json_response.setEmitCompact(false);
    std.debug.print("{s}\n", .{try json_response.emit(alloc)});

    if (resp.getStatusCode() != 200) {
        std.debug.print("Failed.\n", .{});
        return;
    }

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

    // {
    //   "Id": "24bfbcb9-dec9-4d33-835c-8f165d776766",
    //   "Status": "OK",
    //   "ProviderName": "Chilkat2222",
    //   "DateTimeUTC": "\/Date(1587213296972)\/",
    //   "Attachments": [
    //     {
    //       "AttachmentID": "daf106e2-8634-4349-bfcc-86c1df0793b2",
    //       "FileName": "penguins.jpg",
    //       "Url": "https://api.xero.com/api.xro/2.0/Invoices/0032f627-3156-4d30-9b1c-4d3b994dc921/Attachments/penguins.jpg",
    //       "MimeType": "image/jpg",
    //       "ContentLength": 777835
    //     }
    //   ]
    // }

    var attachment_id: [:0]const u8 = "";
    var file_name: [:0]const u8 = "";
    var v_url: [:0]const u8 = "";
    var mime_type: [:0]const u8 = "";
    var content_length: i32 = 0;

    _ = try json_response.stringOf(alloc, "Id");
    _ = try json_response.stringOf(alloc, "Status");
    _ = try json_response.stringOf(alloc, "ProviderName");
    _ = try json_response.stringOf(alloc, "DateTimeUTC");
    var i: i32 = 0;
    const count_i = json_response.sizeOfArray("Attachments");
    while (i < count_i) {
        json_response.setI(i);
        attachment_id = try json_response.stringOf(alloc, "Attachments[i].AttachmentID");
        file_name = try json_response.stringOf(alloc, "Attachments[i].FileName");
        v_url = try json_response.stringOf(alloc, "Attachments[i].Url");
        mime_type = try json_response.stringOf(alloc, "Attachments[i].MimeType");
        content_length = json_response.intOf("Attachments[i].ContentLength");
        i = i + 1;
    }
}