+extern int afb_hreq_is_argument_a_file(struct afb_hreq *hreq, const char *name);
+
+extern int afb_hreq_post_add_file(struct afb_hreq *hreq, const char *name, const char *file, const char *data, size_t size);
+
+extern int afb_hreq_post_add(struct afb_hreq *hreq, const char *name, const char *data, size_t size);
+
+extern void afb_hreq_post_end(struct afb_hreq *hreq);
+
+extern struct afb_req afb_hreq_to_req(struct afb_hreq *hreq);
+
+extern void afb_hreq_drop_data(struct afb_hreq *hreq);
+
+extern void afb_hreq_iterate_arguments(struct afb_hreq *hreq, int (*iterator)(void *closure, const char *key, const char *value, int isfile), void *closure);