I have been able to input a file using curl from the command line into CouchDB, but I’m having an issue adding an attachment to CouchDB using libcurl. This command line successfully does what I want. This is what I am trying to duplicate via libcurl.
curl -X POST 'http://localhost:5984/students' -H 'Content-Type: application/json' -d '{ "first":"John", "last":"Doe", "age":"20", "_attachments": { "john.txt": { "content-type": "text/plain", "data": "'$(openssl base64 < /tmp/john_file.txt)'" } } }' And here is my attempt at trying to add an attachment to a document via libcurl. --- size_t json_callback(void *contents, size_t size, size_t nmemb, void *userp) { ((string *)userp)->append((char *) contents, size * nmemb); return (size * nmemb); } ostringstream urlobj; ostringstream lcobj; // build json stream here … // lcobj << ""{\"first\" : \"John"\"," << ... string lcstr = lcobj.str(); string urlstr = urlobj.str(); hlist = NULL; hlist = curl_slist_append(hlist,"Expect: 100-continue"); hlist = curl_slist_append(hlist,"Content-Type: application/json"); hlist = curl_slist_append(hlist,"charsets: utf-8"); curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); curl_easy_setopt(curl, CURLOPT_URL, urlstr.c_str()); curl_easy_setopt(curl, CURLOPT_HTTPHEADER, hlist); curl_easy_setopt(curl, CURLOPT_POSTFIELDS, lcstr.c_str()); curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, lcstr.length()); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, json_callback); curl_easy_setopt(curl, CURLOPT_WRITEDATA, &rbuff); res = curl_easy_perform(curl); if (res != CURLE_OK) { // ... } curl_easy_cleanup(curl); curl_slist_free_all(hlist); The above works for adding the following document (but not the attachment). The stream lcobj contains the following document (minus carriage returns for clarity here). { "first" : "John", "last" : "Doe", "age" : "20", "_attachments" : {"john_file.txt": { "content-type": "text/plain", "data": “how to put file here?”} } } The problem is I can’t seem to add a file as an attachment via libcurl (I have no issues from the command line), but I’m not sure how the add the file programmatically in the data field of _attachments here.
------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
