post - Storing and retrieving photo files from riak through nitrogen using riak-erlang-client -


I am running a Reic cluster of 5 nodes that I connect through a protocol buffer client. I installed the Reac-Ellong-Client as a Nitrogen Plugin as I did the suggestion. I know how to upload files through nitrogen web-framework, after that I try to store them in the ryak database and retrieve them later.

I highlight this highlight on

<> curl -XPUT http: // localhost: 10018 / bucket / images / key / & lt; Image_name & gt; .jpg H 'Content Type: image / jpeg' --data- binary @ & lt; Image_name & gt; .jpg

But it is not fulfilling my needs completely because it also does not use the customer I am using !!

In the picture files of the directory I failed to get them to get my nitrogen

First of all Also help is welcomed. Use the Erlang-Client as a plugin to make Reuters as Nitrogen. Add a dependency like below from rebar.config to your project 

  {deps, [{riakc, "1.4.1", {git, "git: //github.com/basho/ Riak-erlang-client ", {tag," 1.4. 1 "}}}]}}.

Then run in your application 

  cd ../../myapp make

Upload file example Use this source code to get it.

Captures LocalFileName File Path in the Scroll Folder in the Finnish_upload_Event section. Use the file path to read the file. 

  Event (_) - & gt; Fine. Start_upload_event (tag) - & gt; Wf: Flash (wf: f ("Started with upload tag (~ p)", [tag])). Finish_upload_event (_Tag, undefined, _, _) - & gt; Wf: Flash ("Please select a file."), OK; Finish_upload_event (_Tag, _FileName, localfilename, _Node) - & gt; {Well, Binary_image} = file: read_file (LocalFileName), %% Riak database {ok, Pid} = open connection riakc_pb_socket: start (DBNode, port, {connect_timeout, TIMEOUT}, auto_reconnect, false}])). New (term_to_binary (my_images), term_to_binary (My_key), Binary_image), %% database Save OK = riakc_pb_socket: put (PID %% bucket where you are asked my_images save your pictures, then riak object obj = make riakc_obj , Obj, []).

To read the image from the database and display it in the web browser 

  -module (image) -include_lib ("nitrogen_core / include / wf. Hrl "). -compile (export_all). Main () - & gt; %% image set content of the WF to: content_type ( "image / png"), {ok, Pid} = riakc_pb_socket: start (DBNode, port, {connect_timeout, TIMEOUT}, auto_reconnect, false}])). Get (PID, term_to_binary (my_images), term_to_binary (My_key), []), %% record image record Binary_image = binary_to_term (riakc_obj: get_value (got went %% database {Well, brought} = read image data from riakc_pb_socket) ), Binary_image event (_) - & gt; Fine.

your URL in the browser structure image file as

where Image rendering the image file module.


Comments

Post a Comment

Popular posts from this blog

python - Overriding the save method in Django ModelForm -

I'm having trouble overriding a ModelForm save method. I get this error I'm: Exception type: TypeErier Exception Value: Save () found an unexpected keyword argument 'committed' My intentions include a form 3 fields Submit several values ​​for, then create an object for each combination of those areas, and to save each object file models.py class collarsult type (models.Model): id = model. AutoField (db_column = 'icontact_result_code_type_id', primary_key = true) callResult = models.ForeignKey ( 'CallResult', db_column = 'icontact_result_code_id') campaign = models.ForeignKey ( 'campaign', db_column = 'icampaign_id') CALLTYPE = models.ForeignKey ( 'CALLTYPE', db_column = 'icall_type_id') agent = models.BooleanField (db_column = 'bagent', default = true) teamLeader = models.BooleanField (db_column = 'bTeamLeader', default = true) active = models.BooleanField (db_column = Django.form...
Read more

html - CSS autoheight, but fit content to height of div -

I have a div in which there are three children- div in the left and middle div: float: left while true: float: true because it is my layout Actually will spoil, I've used ClearFix Hack: .cf {zoom: 1; }. Cf: First,. Cf: {content: ""; Display: Table; }. Cf: After {clear: both; } It still works, but I want to be the right div an indicator. So it should fill 100% of the parent unit of height. How can I complete this? PS is the full code: & Lt; / Div & gt; & Lt; Div class = "mobile_content" & gt; & Lt; H5 & gt; {{Data.titel}} & lt; / H5> & Lt; Table & gt; & Lt; TR & gt; & Lt; Th & gt; Komponist: & lt; / Th & gt; & Lt; TD & gt; {{Data.komponist}} & lt; / TD & gt; & Lt; / TR & gt; & Lt; TR & gt; & Lt; Th & gt; Instrument: & lt; / Th & gt; & Lt; TD & gt; {{Data.instrumente}} & lt; / TD & gt; & Lt; / TR & gt;...
Read more

qt - How to prevent QAudioInput from automatically boosting the master volume to 100%? -

I have been trying to use Qt5 multimedia to record audio with QAudioInput, however, when I see If QAudioInput is started, it increases the master volume of my sound device to 100%. How can I prevent QAudioInput from changing the master volume? My current development platform is Linux with PalsAdio (with flat audio disabled). How can I use QAudioInput : QAudioDeviceInfo device_info = QAudioDeviceInfo :: defaultInputDevice (); QAudio format format; Format.setSampleRate (44100); Format.setChannelCount (1); Format.setSampleSize (16); Format.setCodec ("Audio / PCM"); Format.setSampleType (QAudioFormat :: SignedInt); Format.setByteOrder (QAudioFormat :: LittleEndian); Std :: cout & lt; & Lt; Device_info.deviceName (). ToUtf8 (). ConstData () & lt; & Lt; Std :: endl; QAudioInput * default_device = new QAudioInput (device_info, format); QIODevice * default_io_device = default_device-> Start (); a QAudioInput.setVolume () method is not you I ...
Read more