Files
esp-idf/examples/protocols/https_server/simple/README.md
harshal.patil 9221c4eecd fix(examples): Example CA certs must contain the Key Usage parameter
- Example CA certificates that are used for self-signed client certificates
need to include the Key Usage parameter.
- Python3.13 changed the default context of the SSL context that is
generated using ssl.create_default_context() by enabling the VERIFY_X509_STRICT
flag by default
2025-04-03 09:20:35 +05:30

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| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | -------- | -------- | -------- |
# HTTPS server
This example creates an HTTPS server with SSL/TLS support using **ESP-TLS** that serves a simple HTML page when you visit its root URL.
For more information, refer to the [esp_https_server component documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/protocols/esp_https_server.html).
## How to use example
Before project configuration and build, be sure to set the correct chip target using `idf.py set-target <chip_name>`.
### Configure the project
```
idf.py menuconfig
```
Open the project configuration menu (`idf.py menuconfig`) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
idf.py -p PORT flash monitor
```
(Replace PORT with the name of the serial port to use.)
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Certificates
You will need to approve a security exception in your browser. This is because of a self signed
certificate; this will be always the case, unless you preload the CA root into your browser/system
as trusted.
You can generate a new certificate using the OpenSSL command line tool:
```
openssl req -newkey rsa:2048 -nodes -keyout prvtkey.pem -x509 -days 3650 -out servercert.pem -subj "/CN=ESP32 HTTPS server example" -addext "keyUsage=critical,digitalSignature,keyCertSign"
```
Expiry time and metadata fields can be adjusted in the invocation.
Please see the openssl man pages (man openssl-req) for more details.
It is **strongly recommended** to not reuse the example certificate in your application;
it is included only for demonstration.
## Example Output
```
I (8596) example: Starting server
I (8596) esp_https_server: Starting server
I (8596) esp_https_server: Server listening on port 443
I (8596) example: Registering URI handlers
I (8606) esp_netif_handlers: example_connect: sta ip: 192.168.194.219, mask: 255.255.255.0, gw: 192.168.194.27
I (8616) example_connect: Got IPv4 event: Interface "example_connect: sta" address: 192.168.194.219
I (9596) example_connect: Got IPv6 event: Interface "example_connect: sta" address: fe80:0000:0000:0000:266f:28ff:fe80:2c74, type: ESP_IP6_ADDR_IS_LINK_LOCAL
I (9596) example_connect: Connected to example_connect: sta
W (9606) wifi:<ba-add>idx:0 (ifx:0, ee:6d:19:60:f6:0e), tid:0, ssn:2, winSize:64
I (9616) example_connect: - IPv4 address: 192.168.194.219
I (9616) example_connect: - IPv6 address: fe80:0000:0000:0000:266f:28ff:fe80:2c74, type: ESP_IP6_ADDR_IS_LINK_LOCAL
W (14426) wifi:<ba-add>idx:1 (ifx:0, ee:6d:19:60:f6:0e), tid:4, ssn:0, winSize:64
I (84896) esp_https_server: performing session handshake
```