Zig

Upload File to Google Cloud Storage

See more Google Cloud Storage Examples

Demonstrates how to upload a file to Google Cloud Storage. 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.

    // This example uses a previously obtained access token having permission for the
    // scope "https://www.googleapis.com/auth/cloud-platform"

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

    // Send a POST equivalent to this curl command.
    // The content of the file is contained in the request body.

    // curl -X POST --data-binary @[OBJECT] \
    //     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
    //     -H "Content-Type: [OBJECT_CONTENT_TYPE]" \
    //     "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]"

    const http = try chilkat.Http.init();
    defer http.deinit();
    http.setAuthToken(try json_token.stringOf(alloc, "access_token"));

    const sb_path = try chilkat.StringBuilder.init();
    defer sb_path.deinit();
    sb_path.append("/upload/storage/v1/b/bucket_name/o?uploadType=media&name=object_name") catch {};
    var num_replaced: i32 = sb_path.replace("bucket_name", "chilkat-bucket-b");
    num_replaced = sb_path.replace("object_name", "penguins.jpg");

    const req = try chilkat.HttpRequest.init();
    defer req.deinit();
    req.setHttpVerb("POST");
    req.setPath(try sb_path.getAsString(alloc));
    req.setContentType("image/jpeg");
    // Indicate the file to be streamed in the request body when the HTTP POST is sent.
    req.streamBodyFromFile("qa_data/jpg/penguins.jpg") catch {};

    const resp = try chilkat.HttpResponse.init();
    defer resp.deinit();
    http.httpSReq("www.googleapis.com", 443, true, req, resp) catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    const response_code = resp.getStatusCode();
    if (response_code == 401) {
        std.debug.print("{s}\n", .{try resp.getBodyStr(alloc)});
        std.debug.print("If invalid credentials, then it is likely the access token expired.\n", .{});
        std.debug.print("Your app should automatically fetch a new access token and re-try.\n", .{});
        return;
    }

    std.debug.print("Response code: {d}\n", .{response_code});
    std.debug.print("Response body\n", .{});
    std.debug.print("{s}\n", .{try resp.getBodyStr(alloc)});

    // A successful response looks like this:
    // Response code: 200
    // Response body
    // {
    //  "kind": "storage#object",
    //  "id": "chilkat-ocean/penguins.jpg/1502643657837855",
    //  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/penguins.jpg",
    //  "name": "penguins.jpg",
    //  "bucket": "chilkat-ocean",
    //  "generation": "1502643657837855",
    //  "metageneration": "1",
    //  "contentType": "image/jpeg",
    //  "timeCreated": "2017-08-13T17:00:57.811Z",
    //  "updated": "2017-08-13T17:00:57.811Z",
    //  "storageClass": "MULTI_REGIONAL",
    //  "timeStorageClassUpdated": "2017-08-13T17:00:57.811Z",
    //  "size": "777835",
    //  "md5Hash": "nTd7EM53jEk4s8fixjoimg==",
    //  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/penguins.jpg?generation=1502643657837855&alt=media",
    //  "crc32c": "ixxYVw==",
    //  "etag": "CJ+azOvX1NUCEAE="
    // }
}