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HTTP/HTPPS 통신연습-File Post and Read

The following commands show us how to send a file to the HTTP server, and how to read HTTP content as a file.

We have our HTTP GET request in a file getbaidu.txt, and save the file in directory “/data/media” before we execute AT+HTTPPOSTFILE

 

 

 

1. HTTP-FILE POST/READ 명령시퀀스

 

NO Command Response 설명
1 PDP Context 설정  

 

2 AT+HTTPINIT OK

(1) PDP Context 활성화

(2) HTTP Service 시작

3

AT+HTTPPARA=”URL”,

“http://speedtest.tele2.net”

OK HTTP 통신

AT+HTTPPARA=”URL”,

“https://speedtest.tele2.net”

  HTTPS 통신
  – AT+FSLS +FSLS: SUBDIRECTORIES:
usb
mifi+FSLS: FILES:
readme.txt
readtest.dat
data_bk_ver.txt
dnsmasq.conf
readbaidu.dat
mobileap_cfg.xml
readtest1.dat

 

OK

List All items in “F:/”
5 AT+HTTPPOSTFILE=”readme.txt”,0,0

OK

+HTTPPOSTFILE: 0,400,166

 
6 AT+HTTPHEAD ‘+HTTPHEAD: DATA,145
HTTP/1.1 400 Bad Request
Server: nginx
Date: Sun, 05 Dec 2021 07:38:53 GMT
Content-Type: text/html
Content-Length: 166
Connection: closeOK
 
7 AT+HTTPREADFILE=”readtest1.dat”

OK

+HTTPREADFILE: 0

 
  – AT+FSLS  +FSLS: SUBDIRECTORIES:
usb
mifi+FSLS: FILES:
readme.txt
readtest.dat
data_bk_ver.txt
dnsmasq.conf
readbaidu.dat
mobileap_cfg.xml
readtest1.dat

 

OK

 
8 AT+HTTPTERM OK Stop HTTP Service

 

 

 

 

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