66 lines
1.8 KiB
Markdown
66 lines
1.8 KiB
Markdown
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<!-- snippet:syntax-only -->
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```c title="C"
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#include <curl/curl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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struct response_buffer {
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char *data;
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size_t size;
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};
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static size_t write_callback(void *contents, size_t size, size_t nmemb, void *userp) {
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size_t total = size * nmemb;
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struct response_buffer *buf = (struct response_buffer *)userp;
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char *resized = realloc(buf->data, buf->size + total + 1);
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if (!resized) {
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return 0;
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}
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buf->data = resized;
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memcpy(buf->data + buf->size, contents, total);
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buf->size += total;
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buf->data[buf->size] = '\0';
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return total;
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}
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int main(void) {
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curl_global_init(CURL_GLOBAL_DEFAULT);
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CURL *curl = curl_easy_init();
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if (!curl) {
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fprintf(stderr, "curl_easy_init failed\n");
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curl_global_cleanup();
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return 1;
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}
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struct response_buffer response = {NULL, 0};
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curl_mime *form = curl_mime_init(curl);
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curl_mimepart *part = curl_mime_addpart(form);
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curl_mime_name(part, "file");
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curl_mime_filedata(part, "document.pdf");
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curl_easy_setopt(curl, CURLOPT_URL, "http://localhost:8000/extract");
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curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
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CURLcode rc = curl_easy_perform(curl);
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if (rc != CURLE_OK) {
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fprintf(stderr, "request failed: %s\n", curl_easy_strerror(rc));
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} else {
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long status = 0;
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curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &status);
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printf("HTTP %ld\n%s\n", status, response.data ? response.data : "(empty)");
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}
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free(response.data);
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curl_mime_free(form);
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curl_easy_cleanup(curl);
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curl_global_cleanup();
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return rc == CURLE_OK ? 0 : 1;
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}
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```
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