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| 1 | +// example-bulkwrite shows use of `mongoc_client_bulkwrite`. |
| 2 | + |
| 3 | +#include <mongoc/mongoc.h> |
| 4 | + |
| 5 | +#define HANDLE_ERROR(...) \ |
| 6 | + if (1) { \ |
| 7 | + fprintf (stderr, __VA_ARGS__); \ |
| 8 | + fprintf (stderr, "\n"); \ |
| 9 | + goto fail; \ |
| 10 | + } else \ |
| 11 | + (void) 0 |
| 12 | + |
| 13 | +int |
| 14 | +main (int argc, char *argv[]) |
| 15 | +{ |
| 16 | + bool ok = false; |
| 17 | + |
| 18 | + mongoc_init (); |
| 19 | + |
| 20 | + bson_error_t error; |
| 21 | + mongoc_client_t *client = mongoc_client_new ("mongodb://localhost:27017"); |
| 22 | + mongoc_bulkwriteopts_t *bwo = mongoc_bulkwriteopts_new (); |
| 23 | + mongoc_bulkwriteopts_set_verboseresults (bwo, true); |
| 24 | + mongoc_bulkwrite_t *bw = mongoc_client_bulkwrite_new (client); |
| 25 | + |
| 26 | + // Insert a document to `db.coll1` |
| 27 | + { |
| 28 | + bson_t *doc = BCON_NEW ("foo", "bar"); |
| 29 | + if (!mongoc_bulkwrite_append_insertone (bw, "db.coll1", doc, NULL, &error)) { |
| 30 | + HANDLE_ERROR ("Error appending insert one: %s", error.message); |
| 31 | + } |
| 32 | + bson_destroy (doc); |
| 33 | + } |
| 34 | + // Insert a document to `db.coll2` |
| 35 | + { |
| 36 | + bson_t *doc = BCON_NEW ("foo", "baz"); |
| 37 | + if (!mongoc_bulkwrite_append_insertone (bw, "db.coll2", doc, NULL, &error)) { |
| 38 | + HANDLE_ERROR ("Error appending insert one: %s", error.message); |
| 39 | + } |
| 40 | + bson_destroy (doc); |
| 41 | + } |
| 42 | + |
| 43 | + mongoc_bulkwritereturn_t bwr = mongoc_bulkwrite_execute (bw, bwo); |
| 44 | + |
| 45 | + // Print results. |
| 46 | + { |
| 47 | + BSON_ASSERT (bwr.res); // Has results. NULL only returned for unacknowledged writes. |
| 48 | + printf ("Insert count : %" PRId64 "\n", mongoc_bulkwriteresult_insertedcount (bwr.res)); |
| 49 | + const bson_t *ir = mongoc_bulkwriteresult_insertresults (bwr.res); |
| 50 | + BSON_ASSERT (ir); // Has verbose results. NULL only returned if verbose results not requested. |
| 51 | + char *ir_str = bson_as_relaxed_extended_json (ir, NULL); |
| 52 | + printf ("Insert results : %s\n", ir_str); |
| 53 | + bson_free (ir_str); |
| 54 | + } |
| 55 | + |
| 56 | + // Print all error information. To observe: try setting the `_id` fields to cause a duplicate key error. |
| 57 | + if (bwr.exc) { |
| 58 | + const char *msg = "(none)"; |
| 59 | + if (mongoc_bulkwriteexception_error (bwr.exc, &error)) { |
| 60 | + msg = error.message; |
| 61 | + } |
| 62 | + const bson_t *we = mongoc_bulkwriteexception_writeerrors (bwr.exc); |
| 63 | + char *we_str = bson_as_relaxed_extended_json (we, NULL); |
| 64 | + const bson_t *wce = mongoc_bulkwriteexception_writeconcernerrors (bwr.exc); |
| 65 | + char *wce_str = bson_as_relaxed_extended_json (wce, NULL); |
| 66 | + const bson_t *er = mongoc_bulkwriteexception_errorreply (bwr.exc); |
| 67 | + char *er_str = bson_as_relaxed_extended_json (er, NULL); |
| 68 | + printf ("Top-level error : %s\n", msg); |
| 69 | + printf ("Write errors : %s\n", we_str); |
| 70 | + printf ("Write concern errors : %s\n", wce_str); |
| 71 | + printf ("Error reply : %s\n", er_str); |
| 72 | + bson_free (er_str); |
| 73 | + bson_free (wce_str); |
| 74 | + bson_free (we_str); |
| 75 | + } |
| 76 | + |
| 77 | + mongoc_bulkwriteresult_destroy (bwr.res); |
| 78 | + mongoc_bulkwriteexception_destroy (bwr.exc); |
| 79 | + mongoc_bulkwrite_destroy (bw); |
| 80 | + |
| 81 | + ok = true; |
| 82 | +fail: |
| 83 | + mongoc_client_destroy (client); |
| 84 | + mongoc_bulkwriteopts_destroy (bwo); |
| 85 | + mongoc_cleanup (); |
| 86 | + return ok ? EXIT_SUCCESS : EXIT_FAILURE; |
| 87 | +} |
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