When I change the %s to %q in the print function I see the special
characters in their Hexadecimal representations.
See below:
0011020240702\x1d02017580000001030085245467021.00Y00000000000050072
2024070200000000000000000\x1cDG\x1cDI00\x1cE700000000\x1cG1200
\x1cG2X \x1cG310\x1cG4E79 \x03
I am using the original code (JSON).
How do I then change them back to the actual characters?
On Tuesday, July 2, 2024 at 7:15:36 PM UTC-4 Ian Lance Taylor wrote:
> 1) Please send Go code as plain text, not as an image. Anybody can read
> plain text. Images are hard to read. Thanks.
>
> 2) What do you see if you change the %s to %q in the fmt.Printf call?
>
> Ian
>
> On Tue, Jul 2, 2024 at 3:40 PM Hugh Myrie <hugh....@gmail.com> wrote:
>
>> The original Go function is shown below. Initially, a JSON-encoded string
>> is sent from the client. The first print function is used to view the
>> output after decoding.
>>
>>
>> func SendClaim(w http.ResponseWriter, r *http.Request) {
>> // strEcho := "Halo"
>> servAddr := tcpAddress
>>
>> type Resp struct {
>> Status string `json:"status"`
>> Reply string `json:"reply"`
>> }
>> type Claim struct {
>> ClaimInfo string `json:"claiminfo"`
>> }
>>
>> var params Claim
>>
>> erx := json.NewDecoder(r.Body).Decode(¶ms)
>> if erx != nil {
>> http.Error(w, erx.Error(), http.StatusBadRequest)
>> fmt.Println("Error occurs here")
>> log.Printf(erx.Error())
>> return
>> }
>> fmt.Printf("Claims: %s \n", params)
>> // policy := params.CardNo //r.FormValue("cardno")
>> // log.Println("policy # ", policy)
>>
>> tcpAddr, err := net.ResolveTCPAddr("tcp", servAddr)
>> if err != nil {
>> println("ResolveTCPAddr failed:", err.Error())
>> respondWithError(w, http.StatusBadRequest, err.Error())
>> return
>> }
>>
>> data := params.ClaimInfo
>> // printr := r.FormValue("printer")
>>
>> fmt.Println(data)
>> conn, err := net.DialTCP("tcp", nil, tcpAddr)
>> if err != nil {
>> println("Dial failed:", err.Error())
>> respondWithError(w, http.StatusBadRequest, err.Error())
>> return
>> }
>>
>> _, err = conn.Write([]byte(data))
>> if err != nil {
>> println("Write to server failed:", err.Error())
>> respondWithError(w, http.StatusBadRequest, err.Error())
>> return
>> }
>>
>> reply := make([]byte, 1024)
>>
>> _, err = conn.Read(reply)
>> if err != nil {
>> println("Write to server failed:", err.Error())
>> respondWithError(w, http.StatusBadRequest, err.Error())
>> return
>> }
>>
>> resp := Resp{}
>> println("reply from server=", string(reply))
>> resp.Status = "response"
>> resp.Reply = string(reply)
>>
>> respondWithJSON(w, http.StatusOK, resp)
>>
>> conn.Close()
>> }
>>
>>
>> On Tuesday, July 2, 2024 at 9:28:01 AM UTC-4 Hugh Myrie wrote:
>>
>>> Copying the result to notepad confirms the missing special characters..
>>>
>>> I'll try your suggestion.
>>>
>>> Thanks.
>>>
>>>
>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>
>>> Virus-free.www.avg.com
>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>
>>> <#m_7810203444138361032_m_3329966587656473292_m_4334311486301273828_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>
>>> On Tue, Jul 2, 2024 at 8:33 AM 'Dan Kortschak' via golang-nuts <
>>> golan...@googlegroups.com> wrote:
>>>
>>>> On Mon, 2024-07-01 at 12:03 -0700, Hugh Myrie wrote:
>>>> > I am trying to preserve special characters (group separators and
>>>> > field separators) when reading the request body from a POST request.
>>>> >
>>>> > When I do a dumpRequest I am able to see the special characters (Hex
>>>> > Format, for example: \x1c or \x03). I am sending the data from the
>>>> > client as text/plain.
>>>> >
>>>> > I have tried sending the data as JSON and using the decoder in Go. I
>>>> > have also tried using Base64 and decoding in go accordingly. I have
>>>> > tried json.unmarshal to decode the incoming JSON data. However, in
>>>> > every instance the special characters are removed.
>>>> >
>>>> > I need the special characters to be preserved so I can send the data
>>>> > for further processing. I need the special characters not the
>>>> > hexadecimal representation.
>>>> >
>>>> > I am able to see the actual data being sent to the Go server. I also
>>>> > tried encoding the data from the client side.
>>>> >
>>>> > Your help would be greatly appreciated.
>>>>
>>>> This looks to be working as expected. https://go.dev/play/p/fqLPbsMKaOm
>>>>
>>>> How are you seeing the bytes being missing?
>>>>
>>>>
>>>> --
>>>> You received this message because you are subscribed to a topic in the
>>>> Google Groups "golang-nuts" group.
>>>> To unsubscribe from this topic, visit
>>>> https://groups.google.com/d/topic/golang-nuts/8cLWTdxHQCI/unsubscribe.
>>>> To unsubscribe from this group and all its topics, send an email to
>>>> golang-nuts...@googlegroups.com.
>>>> To view this discussion on the web visit
>>>> https://groups.google.com/d/msgid/golang-nuts/9cf1e4d31b68f7601839a450e1a9aa572458e756.camel%40kortschak.io
>>>> .
>>>>
>>>
>>>
>>> --
>>> http://www.jaxtr.com/blessed_hope
>>>
>> --
>>
> You received this message because you are subscribed to the Google Groups
>> "golang-nuts" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to golang-nuts...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/golang-nuts/6fd2520e-a7e3-43ed-89d5-dc96419d8a89n%40googlegroups.com
>>
>> <https://groups.google.com/d/msgid/golang-nuts/6fd2520e-a7e3-43ed-89d5-dc96419d8a89n%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/golang-nuts/55ed1944-c470-432a-800d-11ac48324310n%40googlegroups.com.
