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https://github.com/nopnop2002/esp-idf-xml
Example of XML parser with ESP-IDF.
https://github.com/nopnop2002/esp-idf-xml
esp-idf esp32 xml xml-parser
Last synced: 4 months ago
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Example of XML parser with ESP-IDF.
- Host: GitHub
- URL: https://github.com/nopnop2002/esp-idf-xml
- Owner: nopnop2002
- License: mit
- Created: 2020-11-29T05:11:38.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2024-01-21T18:27:42.000Z (about 1 year ago)
- Last Synced: 2024-10-11T13:44:47.504Z (4 months ago)
- Topics: esp-idf, esp32, xml, xml-parser
- Language: C
- Homepage:
- Size: 38.1 KB
- Stars: 4
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# esp-idf-xml
IDF component registry includes Expat XML Parsing C Library.
https://components.espressif.com/components/espressif/expat
However, unfortunately there is no sample code for ESP-IDF.
This is example XML parser using Expat.
# Software requirements
esp-idf v4.4/v5.x.
# Installation
```
git clone https://github.com/nopnop2002/esp-idf-xml
cd esp-idf-xml
chmod 777 ./getpem.sh
./getpem.sh
idf.py menuconfig
idf.py flash monitor
```
# Configuration
Set the following items using menuconfig.
- CONFIG_ESP_WIFI_SSID
SSID of your wifi.
- CONFIG_ESP_WIFI_PASSWORD
PASSWORD of your wifi.
- CONFIG_ESP_MAXIMUM_RETRY
Maximum number of retries when connecting to wifi.
# XML source
XML source for this projec is BBC Weather Forecast for London.
https://weather-broker-cdn.api.bbci.co.uk/en/forecast/rss/3day/2643743
# Console output
```
I (8029) HTTP: tag=[rss/channel/title]
I (8029) HTTP: element=[BBC Weather - Forecast for London, GB]
I (8039) HTTP: tag=[rss/channel/link]
I (8039) HTTP: element=[https://www.bbc.co.uk/weather/2643743]
I (8049) HTTP: tag=[rss/channel/description]
I (8049) HTTP: element=[3-day forecast for London from BBC Weather, including weather, temperature and wind information]
I (8069) HTTP: tag=[rss/channel/language]
I (8069) HTTP: element=[en]
I (8069) HTTP: tag=[rss/channel/copyright]
I (8079) HTTP: element=[Copyright: (C) British Broadcasting Corporation, see https://www.bbc.co.uk/usingthebbc/terms-of-use/usingthebbc/terms-of-use/#d7c3c6fd18ea551b9f3f26ecbd4612be for more details]
I (8099) HTTP: tag=[rss/channel/pubDate]
I (8099) HTTP: element=[Wed, 11 May 2022 05:22:20 GMT]
I (8109) HTTP: tag=[rss/channel/dc:date]
I (8109) HTTP: element=[2022-05-11T05:22:20Z]
I (8119) HTTP: tag=[rss/channel/dc:language]
I (8119) HTTP: element=[en]
```
# How to change XML source
- Edit getpem.sh and set the URL.
```
openssl s_client -showcerts -connect weather-broker-cdn.api.bbci.co.uk:443 hoge
#openssl s_client -showcerts -connect www.espn.com:443 hoge
```
- Run getpem.sh to get the public key.
```
$ ./getpem.sh
depth=2 OU = GlobalSign Root CA - R3, O = GlobalSign, CN = GlobalSign
verify return:1
depth=1 C = BE, O = GlobalSign nv-sa, CN = GlobalSign RSA OV SSL CA 2018
verify return:1
depth=0 C = GB, ST = London, L = London, O = British Broadcasting Corporation, CN = www.bbc.co.uk
verify return:1
DONE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
```
- Edit main/http_client.c and set the URL.
```
strcpy(url, "https://weather-broker-cdn.api.bbci.co.uk/en/forecast/rss/3day/2643743");
//strcpy(url, "https://www.espn.com/espn/rss/news");
```
- Build firmware