Escaping character issue

[liuql2580]

Answers checklist

• I have read the documentation ESP-AT Programming Guide and the issue is not addressed there.
• I have used the latest released firmware or have updated my ESP-AT branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

AT+GMR

AT version:3.4.0.0(s-c31b833 - ESP32 - Jun 7 2024 03:48:17)
SDK version:v5.0.6-dirty
compile time(70ff588):Jun 7 2024 04:46:00
Bin version:v3.4.0.0(WROOM-32)

OK

ESP-AT Firmware Source

1

Hardware Information

esp32

Power Supply used

USB

What is the expected behavior?

When I sent a JSON request using the AT firmware, I found that ESP32AT did not send when the JSON file had two elements，For example, like this：
AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\",\"mode\":\"cbc\"}"

ERROR

But the second element doesn't need to be a string, just like this：

AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\"\,\"mode\":1}"

If it were changed to this, it would also fail:

AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\"\,\"mode\":\"cbc\"}"

I think this is a serious issue, please resolve it as soon as possible

What is the actual behavior?

AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\",\"mode\":\"cbc\"}"

ERROR

Probability of recurrence

1

AT+SYSRAM?

+SYSRAM:80632,60044
OK

Steps to reproduce

1.AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\",\"mode\":\"cbc\"}"

AT command port output

[2025-04-23 04:32:33.935 T] AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\",\"mode\":\"cbc\"}"

[2025-04-23 04:32:34.031 R] AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload","","",1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\",\"mode\":\"cbc\"}"

ERROR

AT log port output

nothing

More Information.

No response

[ustccw]

@liuql2580 you can try the command:

AT+HTTPCLIENT=3,1,"http://192.168.83.134:3000/api/upload",,,1,"{\"payload\":\"BSDoFF3V7jW8pOBkai3YomLpPrNdqKj/s4Hmbz2VORhe+GDJbr1lCykVC8CTSExTGlh8Dm3/hOuwRX0ZIS8rqzXnc8YAbS2OxwOT5MCt1M9nlBfhcf9vonISnKqELfCqkxgMDDO2wENw6+VcOtuIoQ==\"\,\"mode\":\"cbc\"}"

The length of each AT command should be no more than 256 bytes.