easylibstorage/examples/downloader.c

/* downloader.c: Download files from a Logos Storage node into the local disk.
 */
#include <stdio.h>
#include <stdlib.h>
#include "easystorage.h"

void panic(const char *msg) {
    fprintf(stderr, "Panic: %s\n", msg);
    exit(1);
}

void progress(int total, int complete, int status) {
    printf("\r  %d / %d bytes", complete, total);
    fflush(stdout);
}

int main(int argc, char *argv[]) {
    if (argc < 4) {
        printf("Usage: %s BOOTSTRAP_SPR CID <output_file>\n", argv[0]);
        exit(1);
    }

    char *spr = argv[1];
    char *cid = argv[2];
    char *filepath = argv[3];

    node_config cfg = {
            .api_port = 8081,
            .disc_port = 9091,
            .data_dir = "./downloader-data",
            .log_level = "TRACE",
            .bootstrap_node = "spr:CiUIAhIhApIj9p6zJDRbw2NoCo-tj98Y760YbppRiEpGIE1yGaMzEgIDARpJCicAJQgCEiECkiP2nrMkNFvDY2gKj62P3xjvrRhumlGISkYgTXIZozMQvcz8wQYaCwoJBAWhF3WRAnVEGgsKCQQFoRd1kQJ1RCpGMEQCIFZB84O_nzPNuViqEGRL1vJTjHBJ-i5ZDgFL5XZxm4HAAiB8rbLHkUdFfWdiOmlencYVn0noSMRHzn4lJYoShuVzlw",
            .listen_addr = "/ip4/127.0.0.1/tcp/65032",
            .nat = "none",
    };

    STORAGE_NODE node = e_storage_new(cfg);
    if (e_storage_start(node) != RET_OK) panic("Failed to start storage node");
    if (e_storage_download(node, cid, filepath, progress) != RET_OK) panic("Failed to download file");
    e_storage_stop(node);
    e_storage_close(node);
    e_storage_destroy(node);
}