feat(http-post-update): adjust HTTP POST request
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@ -343,7 +343,7 @@ int callback_get_entity (const struct _u_request * request, struct _u_response *
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}
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/**
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* Callback function for route /entities to reply all entities
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* Callback function to reply all entities
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*/
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int callback_get_entities (const struct _u_request * request, struct _u_response * response, void * user_data) {
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/*declarations*/
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@ -410,8 +410,128 @@ int callback_get_entities (const struct _u_request * request, struct _u_response
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return U_CALLBACK_CONTINUE;
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}
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int callback_delete_entity (const struct _u_request * request, struct _u_response * response, void * user_data) {};
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int callback_update_entity (const struct _u_request * request, struct _u_response * response, void * user_data) {};
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/**
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* Callback function to delete a particular entity
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*/
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int callback_delete_entity (const struct _u_request * request, struct _u_response * response, void * user_data) {
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};
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/**
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* Callback function to update a particular entity
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*/
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int callback_update_entity (const struct _u_request * request, struct _u_response * response, void * user_data) {
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/*declarations*/
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int r;
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const char **keys=NULL;
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const char **keysUrl=NULL;
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const char *value=NULL;
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const char *valueUrl=NULL;
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char *line=NULL;
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int len;
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int i;
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PGconn *conn=NULL;
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char *prepStmEntities=NULL;
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PGresult *pqRes=NULL;
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printf("callback_update_entity() Started...\n");
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//parse url
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if(request->map_url != NULL){
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keysUrl=u_map_enum_keys(request->map_url);
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if(keysUrl[0] == NULL){
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//TODO error
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printf("callback_update_entity() param NOT available\n");
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//TODO Why this casting?
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(void)(request);
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(void)(user_data);
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ulfius_set_string_body_response(response, 500, "This is the /entity/:id/update route: Param error!");
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}else{
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valueUrl = u_map_get(request->map_url, keysUrl[0]);
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//printf("callback_update_entity() URL: key is %s, value is %s\n", keysUrl[0], valueUrl);
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//parse body
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if(request->map_post_body != NULL){
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keys=u_map_enum_keys(request->map_post_body);
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if(keys[0] == NULL){
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//TODO error
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printf("callback_update_entity() param NOT available\n");
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//TODO Why this casting?
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(void)(request);
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(void)(user_data);
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ulfius_set_string_body_response(response, 500, "This is the /entity/:id/update route: HTTP POST data error!");
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}else{
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//printf("callback_update_entity() param available\n");
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value = u_map_get(request->map_post_body, keys[0]);
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//printf("callback_update_entity() BODY: key is %s, value is %s\n", keys[0], value);
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if(value==NULL){
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//TODO error
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printf("callback_update_entity() key NOT available in request map\n");
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//TODO Why this casting?
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(void)(request);
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(void)(user_data);
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ulfius_set_string_body_response(response, 500, "This is the /entity/:id/update route: HTTP POST key error!");
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}else{
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//printf("callback_update_entity() key is %s, value is %s\n", keys[0], value);
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conn = (PGconn *)user_data;
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/*define prepared statement*/
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len=snprintf(NULL,0,
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"UPDATE entities SET name='%s' WHERE id=%s RETURNING *;"
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,value,valueUrl);
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prepStmEntities=malloc((size_t)(len+1));
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//TODO Release prepStmEntities!
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snprintf(prepStmEntities,(size_t)(len+1),
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"UPDATE entities SET name='%s' WHERE id=%s RETURNING *;"
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,value,valueUrl);
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//printf("callback_update_entity() prepStmEntities: %s\n",prepStmEntities);
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/*create prepared statement*/
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/*conn:connection*/
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/*stm:statement*/
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/*0:number of passed parameters*/
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/*NULL: server figures out parameter type*/
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/*paramValues:pointer of an array of strings containing parameters*/
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/*NULL:relevant for binary parameters*/
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/*NULL:relevant for binary parameters*/
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/*0:obtain result in text format*/
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//TODO How to pass params?
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pqRes = PQexecParams(conn, prepStmEntities, 0, NULL, NULL, NULL, NULL, 0);
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if(PQresultStatus(pqRes) != PGRES_TUPLES_OK){
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/*handle error*/
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printf("callback_update_entity() No data retrieved\n");
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ulfius_set_string_body_response(response, 500, "This is the /entity/:id/update route: Dba error!");
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/*clean up result*/
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PQclear(pqRes);
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//TODO Why this casting?
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}else{
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/*evaluate result*/
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int nbRecords=PQntuples(pqRes);
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//printf("callback_update_entity() nbRecords: %d\n",nbRecords);
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/*clean up result*/
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PQclear(pqRes);
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}
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}
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}
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}else{
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printf("callback_update_entity() HTTP POST request error!\n");
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ulfius_set_string_body_response(response, 400, "This is the /entity/:id/update route: HTTP POST request error!");
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}
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}
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}else{
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printf("callback_update_entity() HTTP POST request error!\n");
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ulfius_set_string_body_response(response, 400, "This is the /entity/:id/update route: HTTP POST request error!");
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}
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/*clean up remainings*/
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printf("callback_update_entity() Done.\n");
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//TODO Why this casting?
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(void)(request);
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(void)(user_data);
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ulfius_set_string_body_response(response, 200, "Done.\n");
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return U_CALLBACK_CONTINUE;
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};
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/**
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* Callback function to create a particular entity
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*/
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int callback_create_entity (const struct _u_request * request, struct _u_response * response, void * user_data) {
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/*declarations*/
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int r;
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@ -445,7 +565,7 @@ int callback_create_entity (const struct _u_request * request, struct _u_respons
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(void)(user_data);
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ulfius_set_string_body_response(response, 500, "This is the /entity/create route: HTTP POST key error!");
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}else{
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printf("callback_create_entity() key is %s, value is %s\n", keys[0], value);
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//printf("callback_create_entity() key is %s, value is %s\n", keys[0], value);
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conn = (PGconn *)user_data;
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/*define prepared statement*/
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len=snprintf(NULL,0,
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@ -456,29 +576,29 @@ int callback_create_entity (const struct _u_request * request, struct _u_respons
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snprintf(prepStmEntities,(size_t)(len+1),
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"INSERT INTO entities (name) VALUES ('%s') RETURNING *;"
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,value);
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printf("callback_create_entity() prepStmEntities: %s\n",prepStmEntities);
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//printf("callback_create_entity() prepStmEntities: %s\n",prepStmEntities);
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/*create prepared statement*/
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/*conn:connection*/
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/*stm:statement*/
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/*0:number of passed parameters*/
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/*NULL: server figures out parameter type*/
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/*paramValues:pointer of an array of strings containing parameters*/
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/*NULL:relevant for binary parameters*/
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/*NULL:relevant for binary parameters*/
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/*0:obtain result in text format*/
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//TODO How to pass params?
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/*conn:connection*/
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/*stm:statement*/
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/*0:number of passed parameters*/
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/*NULL: server figures out parameter type*/
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/*paramValues:pointer of an array of strings containing parameters*/
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/*NULL:relevant for binary parameters*/
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/*NULL:relevant for binary parameters*/
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/*0:obtain result in text format*/
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//TODO How to pass params?
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pqRes = PQexecParams(conn, prepStmEntities, 0, NULL, NULL, NULL, NULL, 0);
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if(PQresultStatus(pqRes) != PGRES_TUPLES_OK) {
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/*handle error*/
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printf("callback_create_entity() No data retrieved\n");
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ulfius_set_string_body_response(response, 500, "This is the /entity/create route: Dba error!");
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/*clean up result*/
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PQclear(pqRes);
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//TODO Why this casting?
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if(PQresultStatus(pqRes) != PGRES_TUPLES_OK){
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/*handle error*/
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printf("callback_create_entity() No data retrieved\n");
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ulfius_set_string_body_response(response, 500, "This is the /entity/create route: Dba error!");
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/*clean up result*/
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PQclear(pqRes);
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//TODO Why this casting?
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}else{
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/*evaluate result*/
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int nbRecords=PQntuples(pqRes);
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printf("callback_get_entity() nbRecords: %d\n",nbRecords);
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//printf("callback_create_entity() nbRecords: %d\n",nbRecords);
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/*clean up result*/
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PQclear(pqRes);
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}
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@ -21,7 +21,7 @@ curl -X POST --data "name=Hi from curl!" http://<host>:<port>/entities/create
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* read all
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```
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curl http://<host>:<port>/entities/info
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curl -X GET http://<host>:<port>/entities/info
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```
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* read single
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@ -32,9 +32,10 @@ curl http://<host>:<port>/entities/35/info
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* update
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```
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curl --data "name=Hi from curl!" http://<host>:<port>/entities/1/update
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curl -X POST --data "name=Update!" http://<host>:<port>/entities/1/update
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```
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* delete
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```
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curl --request "DELETE" http://localhost:<port>/entities/1/delete
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curl -X DELETE http://localhost:<port>/entities/1/delete
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```
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