Add better Flickr example

1 files changed, 139 insertions, 0 deletions

diff --git a/examples/get-flickr-favorites.c b/examples/get-flickr-favorites.c
new file mode 100644
index 0000000..0cce1b0
--- /dev/null
+++ b/examples/get-flickr-favorites.c
@@ -0,0 +1,139 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <rest/flickr-proxy.h>
+#include <rest/rest-xml-parser.h>
+
+/*
+ * Parse the payload and either return a RestXmlNode, or error. As a side-effect
+ * the call is unreffed.
+ */
+static RestXmlNode *
+get_xml (RestProxyCall *call)
+{
+  RestXmlParser *parser;
+  RestXmlNode *root;
+
+  parser = rest_xml_parser_new ();
+
+  root = rest_xml_parser_parse_from_data (parser,
+                                          rest_proxy_call_get_payload (call),
+                                          rest_proxy_call_get_payload_length (call));
+
+  if (strcmp (root->name, "rsp") != 0) {
+    g_error ("Unexpected response from Flickr:\n%s",
+             rest_proxy_call_get_payload (call));
+  }
+
+  if (strcmp (rest_xml_node_get_attr (root, "stat"), "ok") != 0) {
+    root = rest_xml_node_find (root, "err");
+    g_error ("Error %s from Flickr: %s",
+             rest_xml_node_get_attr (root, "code"),
+             rest_xml_node_get_attr (root, "msg"));
+  }
+
+  g_object_unref (call);
+
+  g_object_unref (parser);
+
+  return root;
+}
+
+static void
+print_user_name (RestProxy *proxy)
+{
+  RestProxyCall *call;
+  RestXmlNode *root, *node;
+
+  call = rest_proxy_new_call (proxy);
+  rest_proxy_call_set_function (call, "flickr.auth.checkToken");
+
+  if (!rest_proxy_call_sync (call, NULL))
+    g_error ("Cannot check token");
+
+  root = get_xml (call);
+  node = rest_xml_node_find (root, "user");
+  g_print ("Logged in as %s\n",
+           rest_xml_node_get_attr (node, "fullname")
+           ?: rest_xml_node_get_attr (node, "username"));
+  rest_xml_node_unref (root);
+}
+
+static void
+print_favourites (RestProxy *proxy)
+{
+  RestProxyCall *call;
+  RestXmlNode *root, *node;
+
+  call = rest_proxy_new_call (proxy);
+  rest_proxy_call_set_function (call, "flickr.favorites.getList");
+  rest_proxy_call_add_param (call, "extras", "owner_name");
+  rest_proxy_call_add_param (call, "per_page", "10");
+
+  if (!rest_proxy_call_sync (call, NULL))
+    g_error ("Cannot get favourites");
+
+  root = get_xml (call);
+
+  for (node = rest_xml_node_find (root, "photo"); node; node = node->next) {
+    g_print ("%s by %s\n",
+             rest_xml_node_get_attr (node, "title"),
+             rest_xml_node_get_attr (node, "ownername"));
+  }
+
+  rest_xml_node_unref (root);
+}
+
+int
+main (int argc, char **argv)
+{
+  RestProxy *proxy;
+  RestProxyCall *call;
+  RestXmlNode *root;
+  char *frob, *url;
+  const char *token;
+
+  g_thread_init (NULL);
+  g_type_init ();
+
+  proxy = flickr_proxy_new ("cf4e02fc57240a9b07346ad26e291080", "cdfa2329cb206e50");
+
+  if (argc > 1) {
+    flickr_proxy_set_token (FLICKR_PROXY (proxy), argv[1]);
+  } else {
+    call = rest_proxy_new_call (proxy);
+    rest_proxy_call_set_function (call, "flickr.auth.getFrob");
+
+    if (!rest_proxy_call_sync (call, NULL))
+    g_error ("Cannot get frob");
+
+    root = get_xml (call);
+    frob = g_strdup (rest_xml_node_find (root, "frob")->content);
+    rest_xml_node_unref (root);
+
+    url = flickr_proxy_build_login_url (FLICKR_PROXY (proxy), frob);
+    g_print ("Go to %s to authorise me and then press any key.\n", url);
+    getchar ();
+
+    call = rest_proxy_new_call (proxy);
+    rest_proxy_call_set_function (call, "flickr.auth.getToken");
+    rest_proxy_call_add_param (call, "frob", frob);
+
+    if (!rest_proxy_call_sync (call, NULL))
+      g_error ("Cannot get token");
+
+    root = get_xml (call);
+    token = rest_xml_node_find (root, "token")->content;
+    g_print ("Got token %s\n", token);
+    flickr_proxy_set_token (FLICKR_PROXY (proxy), token);
+    rest_xml_node_unref (root);
+  }
+
+  print_user_name (proxy);
+
+  print_favourites (proxy);
+
+  g_object_unref (proxy);
+
+  return 0;
+}