Zig

Google Translate Text

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Demonstrates how to use the Cloud Translation API to translate text from one spoken language to another. The example translates from English to Spanish. 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.

    // --------------------------------------------------------------------------------
    // IMPORTANT:
    // Don't forget you need to 1st enable the Cloud Translation API in your Google Developers Console at https://console.cloud.google.com
    // --------------------------------------------------------------------------------

    // It is assumed we previously obtained an OAuth2 access token.
    // This example loads the JSON access token file
    const json_token = try chilkat.JsonObject.init();
    defer json_token.deinit();
    json_token.loadFile("qa_data/tokens/_googleTranslate.json") catch {
        std.debug.print("Failed to load _googleTranslate.json\n", .{});
        return;
    };

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

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

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

    // {
    //     "q": "The quick brown fox jumped over the lazy dog.",
    //     "source": "en",
    //     "target": "es",
    //     "format": "text"
    // }

    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    // The following code creates the JSON request body.
    json.updateString("q", "The quick brown fox jumped over the lazy dog.") catch {};
    json.updateString("source", "en") catch {};
    json.updateString("target", "es") catch {};
    json.updateString("format", "text") catch {};

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

    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpJson("POST", "https://translation.googleapis.com/language/translate/v2", json, "application/json", resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    const j_resp = try chilkat.JsonObject.init();
    defer j_resp.deinit();
    resp.getBodyJson(j_resp) catch {};
    j_resp.setEmitCompact(false);

    std.debug.print("Response Body:\n", .{});
    std.debug.print("{s}\n", .{try j_resp.emit(alloc)});

    const resp_status_code = resp.getStatusCode();
    std.debug.print("Response Status Code = {d}\n", .{resp_status_code});
    if (resp_status_code >= 400) {
        std.debug.print("Response Header:\n", .{});
        std.debug.print("{s}\n", .{try resp.getHeader(alloc)});
        std.debug.print("Failed.\n", .{});
        return;
    }

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

    // {
    //   "data": {
    //     "translations": [
    //       {
    //         "translatedText": "El zorro r�pida salt� sobre el perro perezoso."
    //       }
    //     ]
    //   }
    // }

    var translated_text: [:0]const u8 = "";

    var i: i32 = 0;
    const n = j_resp.sizeOfArray("data.translations");
    while (i < n) {
        j_resp.setI(i);
        translated_text = try j_resp.stringOf(alloc, "data.translations[i].translatedText");
        std.debug.print("{s}\n", .{translated_text});
        i = i + 1;
    }
}