Zig

QuickBooks - Query a Customer

See more QuickBooks Examples

Demonstrates how to query QuickBooks customers.

A sample JSON response body is available at Sample Quickbooks Customer Query JSON Response

Zig

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

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

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

    // Get our previously obtained OAuth2 access token, which should contain JSON like this:
    // {
    //   "expires_in": 3600,
    //   "x_refresh_token_expires_in": 8726400,
    //   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
    //   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
    //   "token_type": "bearer"
    // }

    const json_token = try chilkat.JsonObject.init();
    defer json_token.deinit();
    try json_token.loadFile("qa_data/tokens/qb-access-token.json");

    const rest = try chilkat.Rest.init();
    defer rest.deinit();

    // Connect using TLS.
    // A single REST object, once connected, can be used for many Quickbooks REST API calls.
    // The auto-reconnect indicates that if the already-established HTTPS connection is closed,
    // then it will be automatically re-established as needed.
    const b_auto_reconnect = true;
    rest.connect("sandbox-quickbooks.api.intuit.com", 443, true, b_auto_reconnect) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    const sb_auth = try chilkat.StringBuilder.init();
    defer sb_auth.deinit();
    sb_auth.append("Bearer ") catch {};
    sb_auth.append(try json_token.stringOf(alloc, "access_token")) catch {};
    rest.setAuthorization(try sb_auth.getAsString(alloc));

    rest.addHeader("Accept", "application/json") catch {};
    rest.setAllowHeaderFolding(false);

    const query = "select * from Customer";
    rest.addQueryParam("query", query) catch {};
    rest.addQueryParam("minorversion", "45") catch {};

    // The company ID is 123146096291789
    const response_body = rest.fullRequestNoBody(alloc, "GET", "/v3/company/123146096291789/query") catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    // We should expect a 200 response if successful.
    if (rest.getResponseStatusCode() != 200) {
        std.debug.print("Request Header: \n", .{});
        std.debug.print("{s}\n", .{try rest.getLastRequestHeader(alloc)});
        std.debug.print("----\n", .{});
        std.debug.print("Response StatusCode = {d}\n", .{rest.getResponseStatusCode()});
        std.debug.print("Response StatusLine: {s}\n", .{try rest.getResponseStatusText(alloc)});
        std.debug.print("Response Header:\n", .{});
        std.debug.print("{s}\n", .{try rest.getResponseHeader(alloc)});
        std.debug.print("{s}\n", .{response_body});
        return;
    }

    // Load the JSON response into a JSON object for parsing.
    // A sample JSON response is shown below.
    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.setEmitCompact(false);
    json.load(response_body) catch {};

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

    // Iterate over each customer returned.
    const num_records = json.sizeOfArray("QueryResponse.Customer");
    var i: i32 = 0;
    while (i < num_records) {
        json.setI(i);
        std.debug.print("Name: {s}\n", .{try json.stringOf(alloc, "QueryResponse.Customer[i].FullyQualifiedName")});
        std.debug.print("Id: {s}\n", .{try json.stringOf(alloc, "QueryResponse.Customer[i].Id")});
        std.debug.print("City: {s}\n", .{try json.stringOf(alloc, "QueryResponse.Customer[i].BillAddr.City")});
        std.debug.print("----\n", .{});
        i = i + 1;
    }

    std.debug.print("Success.\n", .{});
}