http2_request_example: Change the target http2 server to http2.github.io and

perform only a `GET` request.

examples/protocols/http2_request/main/CMakeLists.txt

@@ -1,3 +1,3 @@
 idf_component_register(SRCS "http2_request_example_main.c"
                     INCLUDE_DIRS "."
-                    EMBED_TXTFILES "golang_root_cert.pem")
+                    EMBED_TXTFILES "http2_github_io_root_cert.pem")

examples/protocols/http2_request/main/golang_root_cert.pem

@@ -1,31 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
-TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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-NFtY2PwByVS5uCbMiogziUwthDyC3+6WVwW6LLv3xLfHTjuCvjHIInNzktHCgKQ5
-ORAzI4JMPJ+GslWYHb4phowim57iaztXOoJwTdwJx4nLCgdNbOhdjsnvzqvHu7Ur
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-4RgqsahDYVvTH9w7jXbyLeiNdd8XM2w9U/t7y0Ff/9yi0GE44Za4rF2LN9d11TPA
-mRGunUHBcnWEvgJBQl9nJEiU0Zsnvgc/ubhPgXRR4Xq37Z0j4r7g1SgEEzwxA57d
-emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc=
------END CERTIFICATE-----

examples/protocols/http2_request/main/http2_github_io_root_cert.pem

@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----
+MIIEsTCCA5mgAwIBAgIQBOHnpNxc8vNtwCtCuF0VnzANBgkqhkiG9w0BAQsFADBs
+MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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+E+r1hspZcX30BJZr01lYPf7TMSVcGDiEo+afgv2MW5gxTs14nhr9hctJqvIni5ly
+/D6q1UEL2tU2ob8cbkdJf17ZSHwD2f2LSaCYJkJA69aSEaRkCldUxPUd1gJea6zu
+xICaEnL6VpPX/78whQYwvwt/Tv9XBZ0k7YXDK/umdaisLRbvfXknsuvCnQsH6qqF
+0wGjIChBWUMo0oHjqvbsezt3tkBigAVBRQHvFwY+3sAzm2fTYS5yh+Rp/BIAV0Ae
+cPUeybQ=
+-----END CERTIFICATE-----

examples/protocols/http2_request/main/http2_request_example_main.c

@@ -1,6 +1,6 @@
 /* HTTP2 GET Example using nghttp2
 
-   Contacts http2.golang.org and executes the GET/PUT requests. A thin API
+   Contacts http2.github.io and executes the GET request. A thin API
    wrapper on top of nghttp2, to properly demonstrate the interactions.
 
    This example code is in the Public Domain (or CC0 licensed, at your option.)
@@ -26,15 +26,13 @@
 #include "sh2lib.h"
 
 
-extern const uint8_t server_root_cert_pem_start[] asm("_binary_golang_root_cert_pem_start");
-extern const uint8_t server_root_cert_pem_end[]   asm("_binary_golang_root_cert_pem_end");
+extern const uint8_t server_root_cert_pem_start[] asm("_binary_http2_github_io_root_cert_pem_start");
+extern const uint8_t server_root_cert_pem_end[]   asm("_binary_http2_github_io_root_cert_pem_end");
 
 /* The HTTP/2 server to connect to */
-#define HTTP2_SERVER_URI  "https://http2.golang.org"
+#define HTTP2_SERVER_URI  "https://http2.github.io"
 /* A GET request that keeps streaming current time every second */
-#define HTTP2_STREAMING_GET_PATH  "/clockstream"
-/* A PUT request that echoes whatever we had sent to it */
-#define HTTP2_PUT_PATH            "/ECHO"
+#define HTTP2_STREAMING_GET_PATH  "/index.html"
 
 
 int handle_get_response(struct sh2lib_handle *handle, const char *data, size_t len, int flags)
@@ -120,10 +118,6 @@ static void http2_task(void *args)
 
     /* HTTP GET  */
     sh2lib_do_get(&hd, HTTP2_STREAMING_GET_PATH, handle_get_response);
-
-    /* HTTP PUT  */
-    sh2lib_do_put(&hd, HTTP2_PUT_PATH, send_put_data, handle_echo_response);
-
     while (1) {
         /* Process HTTP2 send/receive */
         if (sh2lib_execute(&hd) < 0) {