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websocket: updated example to show json data transfer

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This commit is contained in:
gabsuren
2022-07-11 16:05:24 +04:00
parent 4cdfc857ad
commit 3456781494
2 changed files with 42 additions and 0 deletions
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14
components/esp_websocket_client/examples/main/websocket_example.c
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@ -23,6 +23,7 @@
#include "esp_log.h"
#include "esp_websocket_client.h"
#include "esp_event.h"
#include <cJSON.h>
#define NO_DATA_TIMEOUT_SEC 5
@ -74,6 +75,19 @@ static void websocket_event_handler(void *handler_args, esp_event_base_t base, i
} else {
ESP_LOGW(TAG, "Received=%.*s", data->data_len, (char *)data->data_ptr);
}
// If received data contains json structure it succeed to parse
cJSON *root = cJSON_Parse(data->data_ptr);
if (root) {
for (int i = 0 ; i < cJSON_GetArraySize(root) ; i++) {
cJSON *elem = cJSON_GetArrayItem(root, i);
cJSON *id = cJSON_GetObjectItem(elem, "id");
cJSON *name = cJSON_GetObjectItem(elem, "name");
ESP_LOGW(TAG, "Json={'id': '%s', 'name': '%s'}", id->valuestring, name->valuestring);
}
cJSON_Delete(root);
}
ESP_LOGW(TAG, "Total payload length=%d, data_len=%d, current payload offset=%d\r\n", data->payload_len, data->data_len, data->payload_offset);
xTimerReset(shutdown_signal_timer, portMAX_DELAY);