Frantisek Hrbata
ad15109daa
Currently, several examples do not explicitly state their component dependencies, relying instead on the default behavior that includes all registered components and commonly required ones in the build. Explicitly adding component dependencies can reduce build time when set(COMPONENTS main) is used. Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
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HTTPD Server Persistent Sockets Example
The Example consists of HTTPD server persistent sockets demo. This sort of persistency enables the server to have independent sessions/contexts per client.
How to use example
Hardware Required
- A development board with ESP32/ESP32-S2/ESP32-C3 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
- A USB cable for power supply and programming
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 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.
Test the example
In order to test the HTTPD server persistent sockets demo :
- run the test script "python scripts/adder.py <IP> <port> <N>"
- the provided test script sends (POST) numbers from 1 to N to the server which has a URI POST handler for adding these numbers into an accumulator that is valid throughout the lifetime of the connection socket, hence persistent
- the script does a GET before closing and displays the final value of the accumulator
See the README.md file in the upper level 'examples' directory for more information about examples.
Example Output
I (9570) example_connect: - IPv4 address: 192.168.194.219
I (9580) example_connect: - IPv6 address: fe80:0000:0000:0000:266f:28ff:fe80:2c74, type: ESP_IP6_ADDR_IS_LINK_LOCAL
I (9590) example: Starting server on port: '80'
I (9600) example: Registering URI handlers
I (12860) example: /adder visitor count = 1
I (12860) example: /adder PUT handler read 0
I (12860) example: /adder PUT allocating new session
I (13070) example: /adder visitor count = 2
I (13070) example: /adder handler read 1
I (13090) example: /adder visitor count = 3
I (13090) example: /adder handler read 2
I (13110) example: /adder visitor count = 4
I (13110) example: /adder handler read 3
I (13170) example: /adder visitor count = 5
I (13170) example: /adder handler read 4
I (13190) example: /adder visitor count = 6
I (13190) example: /adder handler read 5
I (13210) example: /adder visitor count = 7
I (13210) example: /adder handler read 6
I (13270) example: /adder visitor count = 8
I (13270) example: /adder handler read 7
I (13290) example: /adder visitor count = 9
I (13290) example: /adder handler read 8
I (13300) example: /adder visitor count = 10
I (13310) example: /adder handler read 9
I (13370) example: /adder visitor count = 11
I (13370) example: /adder handler read 10
I (13390) example: /adder visitor count = 12
I (13390) example: /adder GET handler send 55
I (13420) example: /adder Free Context function called