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AT Commands For HTTP(S) Application

  

No Command Description
C0901 AT+SHSSL Select SSL Configure
C0902 AT+SHCONF Set HTTP(S) Parameter
C0903 AT+SHCONN HTTP(S) Connection
C0904 AT+SHBOD Set Body
C0905 AT+SHBODEXT Set Extension Body
C0906 AT+SHAHEAD Add Head
C0907 AT+SHPARA Set HTTP(S) Para
C0908 AT+SHCPARA Clear HTTP(S) Para
C0909 AT+SHCHEAD Clear Head
C0910 AT+SHSTATE Query HTTP(S) Connection Status
C0911 AT+SHREQ Set Request Type
C0912 AT+SHREAD Read Response Value
C0913 AT+SHDISC Disconnect HTTP(S)
C0914 AT+HTTPTOFS Download file to ap file system
C0915 AT+HTTPTOFSRL State of download file to ap file system

 

 

C0901     AT+SHSSL      Select SSL Configure

  

T) AT+SHSSL=?

+SHSSL: (0-5), “ca list”,”cert name”

 

OK

R) AT+SHSSL?

+SHSSL: <index>,<ca list>,<cert name>

 

OK

W) AT+SHSSL=<index>,<ca list>,<certname>

OK

or

ERROR

Parameters

<index>     CSSLCFG set Configure index

<ca list>     Ca Certificate name

<cert name>     Cert Certificate name

Parameter Saving Mode AUTO_SAVE

 

 

 

 

C0902     AT+SHCONF      Set HTTP(S) Parameter

  

T) AT+SHCONF=?

+SHCONF: “HTTPParamTag”,”HTTPParamValue”

 

OK

R) AT+SHCONF?

+SHCONF: <HTTPParamTag>,<HTTPParamValue>

 

OK

W) AT+SHCONF=<HTTPParamTag>,<HTTPParamVa lue>

OK

or

ERROR

Parameters

<HTTPParaTag>     <HTTPParamValue>

“URL”     Server URL address(max is 64 bytes)

“server domain[: tcpPort]”

“TIMEOUT”     Hold once request time.

Unit is second.Default 60s.

range: 30-1800

“BODYLEN”     Set body max length(max is 1024 bytes)

“HEADERLEN”     Set head max length(max is 350 bytes)

“IPVER”     Set IP version

0     IPv4

1     IPv6

Parameter Saving Mode AUTO_SAVE
Reference

Note:

Must set URL,BODYLEN,HEADERLEN value, TIMEOUT default is 60 s, URL format must

http://xxx.xx.xx” or “https://xxx.xx.xx”

 

 

 

 

C0903     AT+SHCONN      HTTP(S) Connection

 

E) AT+SHCONN

OK

or

ERROR

 

 

 

 

C0904     AT+SHBOD      Set Body

 

T) AT+SHBOD=?

+SHBOD: “body”,<bodylen>

 

OK

R) AT+SHBOD?

+SHBOD: <body>,<bodylen>

 

OK

W) AT+SHBOD=<body>,<bodylen>

OK

or

ERROR

Parameters

<body>     Set body value (max length is SHCONF Set value)

<bodylen>     Set body length (max length is SHCONF Set value)

Parameter Saving Mode AUTO_SAVE
Reference

Note:

Must be executed after the connection

 

 

 

 

C0905     AT+SHBODEXT      Set Extension Body

 

T) AT+SHBODEXT=?

+SHBODEXT: (range of supported <bodylen>s),(range of supported <timeout>s)

 

OK

R) AT+SHBODEXT?

+SHBODEXT: <body>,<len_body>

 

OK

W) AT+SHBODEXT=<len_body>,<timeout>

<CR>text is entered

<ctrl-Z/ESC> ESC quits without sending

OK

or

ERROR

Parameters

<body>     Set body value (max length is SHCONF Set value)

<len_body>     Length of <body>. Max value is <bodylen>.

<bodylen>     Max length set by “AT+SHCONF=”BODYLEN”,<bodylen>”

<timeout>     Timeout for automatically sending edited data (100-10000 ms)

Parameter Saving Mode AUTO_SAVE
Reference

Note:

Must be executed after the connection

 

 

 

 

C0906     AT+SHAHEAD      Add Head

 

T) AT+SHAHEAD=?

+SHAHEAD: “type”,”value”

 

OK

R) AT+SHAHEAD?

+SHAHEAD: <type>,<value>

 

OK

W) AT+SHAHEAD=<type>,<value>

OK

OR

ERROR

Parameters

<type>     Head type (max length is SHCONF Set value)

<value>     Head value (max length is SHCONF Set value)

Note: The sum of type and value max length is 350

Parameter Saving Mode AUTO_SAVE
Reference

Note:

Must be executed after the connection

 

 

 

 

C0907     AT+SHCHEAD      Clear Head

 

E) AT+SHCHEAD

OK

or

ERROR

Reference

Note:

Must be executed after the connection

 

 

 

 

C0908     AT+SHPARA      Set HTTP(S) Para

 

T) AT+SHPARA=?

+SHPARA: “key”,”value”

 

OK

R) AT+SHPARA?

+SHPARA: <key>,<value>

 

OK

W) AT+SHPARA=<key>,<value>

OK

or

ERROR

Parameters

<key>     Set key (max is 64 bytes)

<value>     Set value (max is 64 bytes)

Parameter Saving Mode AUTO_SAVE
Reference

Note:

Must be executed after the connection.

 

 

 

 

C0909     AT+SHCPARA      Clear HTTP(S) Para

 

T) AT+SHCPARA=? OK
E) AT+SHCPARA

OK

or

ERROR

Reference

Note:

Must be executed after the connection.

 

 

 

 

C0910     AT+SHSTATE      Query HTTP(S) Connection Status

 

R) AT+SHSTATE?

+SHSTATE: <status>

 

OK

Parameters

<status>

0     Expression HTTP(S) disconnect state;

1     Expression HTTP(S) connect state;

 

 

 

 

C0911     AT+SHREQ      Set Request Type

 

T) AT+SHREQ=?

+SHREQ: url,(1-5)

 

OK

R) AT+SHREQ?

+SHREQ: <url>,<type>

 

OK

W) AT+SHREQ=<url>,<type> 

OK

or

ERROR

Unsolicited Result Code

+SHREQ: <type string>,<StatusCode>,<DataLen>

Parameters

<url>     Request server domain (max is 512 bytes)

<type>

1     GET

2     PUT

3     POST

4     PATCH

5     HEAD

<type string>     String of type are GET ,PUT,POST,PATCH,HEAD.

<timeout>     Waiting for Response time(default is 60 sec)

<StatusCode>     HTTP(S) Status Code responded by remote server,

it identifier refer to HTTP1.1(RFC2616)

100     Continue

101     Switching Protocols

200     OK

201     Created

202     Accepted

203     Non-Authoritative Information

204     No Content

205     Reset Content

206     Partial Content

300     Multiple Choices

301     Moved Permanently

302     Found

303     See Other

304     Not Modified

305     Use Proxy

307     Temporary Redirect

400     Bad Request

401     Unauthorized

402     Payment Required

403     Forbidden

404     Not Found

405     Method Not Allowed

406     Not Acceptable

407     Proxy Authentication Required

408     Request Time-out

409     Conflict

410     Gone

411     Length Required

412     Precondition Failed

413     Request Entity Too Large

414     Request-URI Too Large

415     Unsupported Media Type

416     Requested range not satisfiable

417     Expectation Failed

500     Internal Server Error

501     Not Implemented

502     Bad Gateway

503     Service Unavailable

504     Gateway Time-out

505     HTTP(S) Version not supported

<DataLen>     The length of data got

Reference

Note:

Must be executed after the connection

 

 

 

 

C0912     AT+SHREAD      Read Response Value

 

T) AT+SHREAD=?

+SHREAD: (0-306176),(1-306176)

 

OK

W) AT+SHREAD=<startaddr ess>,<datalen>

OK

+SHREAD: <data_len>

<data>

 

+SHREAD: <data_len>

<data>

…..

or

ERROR

 

If<datalen> is bigger than the data size received, it’s error

If <datalen> is bigger than 2048, will got multi URC +SHREAD

Parameters

<startaddress>     Start address of data

<datalen>     Set read values length

<data_len>     Return data length max is 2048 bytes once,

if more than 2048 bytes, will return many timer until all data are read out

<data>     Response data

Reference

Note:

Read data after request

 

 

 

 

C0913     AT+SHDISC      Disconnect HTTP(S)

  

E) AT+SHDISC

OK

or

ERROR

 

 

 

 

C0914     AT+HTTPTOFS      Download File To AP File System

 

T) AT+HTTPTOFS=?

+HTTPTOFS: (1-255),(1-127)

 

OK

R) AT+HTTPTOFS?

+HTTPTOFS: <status>,<url>,<file_path>

 

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

See Write Command

W) AT+HTTPTOFS=<url>,

<file_path>[,<timeout> [,<retrycnt>]]

OK

 

+HTTPTOFS: <StatusCode>,<DataLen>

Parameters

<status>

0     Idle

1     Busy

<url>     The url

<file_path>

File path and name on AP side,

For example: “/customer/test.bin”,”/custapp/ test.bin “,”/fota/test.bin”

<timeout>  

Timeout of HTTP request.

Unit is second.

Range is 10-1000, default value is 50.

<retrycnt>   

Retry times of HTTP request.

Range is 5-100, default value is 5.

<StatusCode>     HTTP Status Code responded by remote server,

it identifier refer to HTTP1.1(RFC2616)

100     Continue

200     OK

206     Partial Content

400     Bad Request

404     Not Found

408     Request Time-out

500     Internal Server Error 600   Not HTTP PDU

601     Network Error

602     No memory

603     DNS Error

604     Stack Busy

620     SSL continue

65535     Other Errors

<DataLen>

The length of data download

Parameter Saving Mode NO_SAVE

 

 

 

 

C0915     AT+HTTPTOFSRL      State Of Download File To AP File System

  

T) AT+HTTPTOFSRL=? OK
R) AT+HTTPTOFSRL?

+HTTPTOFSRL: <status>,<curlen >,<totallen>

 

OK

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<status>     Downloading state

0     Idle

1     During downloading

<curlen>     The length of data have been download successfully

<totallen>  

The length of data download.

If total length does not been got,

<totallen>     will be 0.

Parameter Saving Mode NO_SAVE

 

 

 

 

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