GET method example added

7b736437 · Tiago Medicci · ec07ec13 · 7b736437 · 7b736437
Commit 7b736437 authored Feb 12, 2018 by Tiago Medicci
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http_server.c http_server.c +44 -0

http_server.h http_server.h +10 -0

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--- a/http_server.c
+++ b/http_server.c
@@ -111,6 +111,22 @@ static esp_err_t add_keyval_pair(http_header_list_t *list, const char* name, con

 static const char* TAG = "http_server";

+const static char index_html[] = "<!DOCTYPE html>"
+      "<html>\n"
+      "<head>\n"
+      "  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n"
+      "  <style type=\"text/css\">\n"
+      "    html, body, iframe { margin: 0; padding: 0; height: 100%; }\n"
+      "    iframe { display: block; width: 100%; border: none; }\n"
+      "  </style>\n"
+      "<title>HELLO ESP32</title>\n"
+      "</head>\n"
+      "<body>\n"
+      "<h1>Hello World, from ESP32!</h1>\n"
+      "</body>\n"
+      "</html>\n";
+
+
 esp_err_t http_register_handler(http_server_t server,
        const char* uri_pattern, int method,
        int events, http_handler_fn_t callback, void* callback_arg)
@@ -818,3 +834,31 @@ esp_err_t http_server_stop(http_server_t server)
    free(server);
    return ESP_OK;
 }
+
+static void cb_GET_method(http_context_t http_ctx, void* ctx)
+{
+    size_t response_size = strlen(index_html);
+    http_response_begin(http_ctx, 200, "text/html", response_size);
+    http_buffer_t http_index_html = { .data = index_html };
+    http_response_write(http_ctx, &http_index_html);
+    http_response_end(http_ctx);
+}
+
+esp_err_t simple_GET_method_example(void)
+{
+	http_server_t server;
+	http_server_options_t http_options = HTTP_SERVER_OPTIONS_DEFAULT();
+	esp_err_t res;
+
+	res =  http_server_start(&http_options, &server);
+	if (res != ESP_OK) {
+		return res;
+	}
+
+	res = http_register_handler(server, "/", HTTP_GET, HTTP_HANDLE_RESPONSE, &cb_GET_method, NULL);
+	if (res != ESP_OK) {
+		return res;
+	}
+
+	return res;
+}
--- a/http_server.h
+++ b/http_server.h
@@ -285,6 +285,16 @@ esp_err_t http_response_write(http_context_t http_ctx, const http_buffer_t* buff
 */
 esp_err_t http_response_end(http_context_t http_ctx);

+/**
+ * @brief Example of GET method. Responding a simple "Hello World" html. All initializations included.
+ * @param none
+ * @return
+ *      - ESP_OK on success
+ *      - other errors in the future?
+ */
+esp_err_t simple_GET_method_example(void);
+
+
 #ifdef __cplusplus
 }
 #endif