I want to test POST request on android. I don't have a web host. There are some android-volley request example in here.
How can I find a free url to allow post the requestes?
There a few i can think of :
https://httpbin.org/post
http://requestb.in/
www.posttestserver.co
I am sure there are more.
These are good for general experiments, however I would use something more customizable and locally installed like https://nodered.org/ and for actual tests something that actually runs on the device with the tests like:
MockWebserver
RESTMock
wiremock - example
Custom solution mocking the HttpStack(the last point before flushing the data to the wire)
Related
I am quite new to Android app development and would like to perform a simple API request via HTTP to a web server. URL("http://www.myapi.com").readText() seems to be a good way to start with, but this leads to a NetworkOnMainThreadException. So it must run asynchronously or in a coroutine. However, I'm not familiar enough with this and other examples I have found so far don't work for me.
Thanks a lot already for your help!
if you are using mvvm pattern you can do the following in your ViewModel class
viewModelScope.launch {val response = withContext(Dispatchers.IO) { your request }}
HTTP requests are no longer allowed by default on Android 9 and above.
Consider using HTTPS, or modify the AndroidManifest.xml, see this answer on StackOverflow.
I'm making a simple HTTP POST request using Tasker app, it's working fine but somehow it's not sending my arguments. HTTP GET is working fine. What am I doing wrong?
The only thing the server does is JSON stringify all received parameters and return them like: Text: { parameters }
HTTP GET is working:
HTTP POST works, it returns the response "text: {}" but doesn't return any parameter:
Now sometimes it shows "Bad Request Error 400"
I've tested it with another server and this issue persists...
Here's a fiddle to send get and post requests to the same server and both work.
I've exported my task as xml for you to test: You can download it here
Thanks in advance guys!
I have done a little testing with what you have supplied. It appears that your post parameters are making it to the server but %HTTPR is not getting populated. The Tasker documentation says that this variable will be populated if the response is "text-based", but this does not seem to be the case. I may not know what Tasker considers to be "text-based", but I have tried "text/plain" and "text/html" with no luck.
The work-around that I have come up with is to put the response into a file using the "Output File" field of the post task. (Leave "Content Type" blank or this won't work.) You can then read the file into a variable and do what you need to.
This is either a defect in Tasker, incorrect documentation, or just a misunderstanding of what it takes to make it work. This work-around, however, will get you what you need.
Here is a link to a GitHub repository with the updated task export. You may need to change the output file name/location to work with your device.
Update:
Since I posted the above solution, I have run across a Tasker plugin called "RESTask for Tasker". Evidently, Tasker has enough issues with HTML requests that a separate plugin was needed. I have tested this plugin with POST and it does work, so this is another way to go. The plugin is available on the Google Play store.
I am trying to sync my app with the server (periodically,on-demand & when network outage happens),which uses the basic authentication for the syncing.Here i am facing this error.
Had done some research on this but found no solution.Have anyone come across this & have a solution???
PS:I am a novice developer in android.
I recommend double checking the method url that you are using.
For instance, can you run it using Postman or some other REST client and get a valid response?
This behavior happened in one of my project while I accidentally used a broken method URL but with a right host.
good luck:)
i'm trying to test Android app using Espresso FW and I stucked on the problem with doing async HTTP request.
How can i test the case that app (activity) is waiting for processing request and after the response is received is displayed next activity with result or error message?
I tried to find any solution how to do it in the Espresso with testing against the data from the test server, but without luck.
Many thanks for any advice, example or link.
I struggled with this for a few days. If your app is using retrofit to handle HTTP requests, you can add this one line:
.setExecutors(AsyncTask.THREAD_POOL_EXECUTOR, new MainThreadExecutor())
to your RestAdaptor.Builder. This moves all of the HTTP requests into the AsyncTasks pool which is then handled by espresso.
I found the original answer here: http://www.michaelevans.org/blog/2015/08/03/using-espresso-for-easy-ui-testing/
I think the problem is in app architecture.
You should use some Dependency Injection library to inject mock service with mock data in your application in test mode.
When you inject "test" implementation ( mocks) when you testing. U will avoid problems with not network availability or you can simulate network availability by your test implementation.
I am confronting myself with a problem that I do not know how to interpret. I am doing a project using Android and Google App Engine. When I am trying to save information in Google App Engine's Big Table, directly from the servlet (hardcoded) - the save is performed with no problem. But when I am trying to save data from my Android device, the save is not performed and the log indicates Apache-HttpClient/UNAVAILABLE error. To be more specific:
405 55ms 0kb Apache-HttpClient/UNAVAILABLE (java 1.4)
82.155.246.249 - - [10/Jun/2013:05:20:59 -0700] "POST /servletnamehere HTTP/1.1" 405 306 - "Apache-HttpClient/UNAVAILABLE (java 1.4)" "appnamehere.appspot.com" ms=56 cpu_ms=21 cpm_usd=0.000034 app_engine_release=1.8.0 instance=00c61b117cede3f754aa1ece730dc88287a20199
I have seen that 405 HTTP error appears in the context of a POST method ( "405 errors often arise with the POST method. You may be trying to introduce some kind of input form on the Web site, but not all ISPs allow the POST method necessary to process the form." ) => indeed, I am trying to perform add (the object is a JPA Entity) in the database using a POST method. The data I am receiving from my Android device is serialized, through an input stream (in my case, working with JSON is not an option, these are the specifications).
Also, 306 HTTP error reffers to switch proxy. While the porevious error might be a bit intuitive, this one is beyond my student knowledge.
I have followed the instructions of this tutorial (http://trumpy.cs.elon.edu/joel/sigcse2011/), which is indeed what I need, but I really cannot figure out what I did wrong. I took again the procedure, stept by step, but I don't see the flaw.
Any help will be indeed appreciated. If I should post some code, I'll gladly do it.
Best wishes,
Cropcircles
LATER EDIT:
Now I get 417 HTTP error expectation failed. I have seen that I am supposed to set a certain parameter on false, but this workaround was available only for .NET. Is there anyone who knows what's the correspondent of the following, in Java? I am really really confused.
<system.net>
<settings>
<servicePointManager expect100Continue="false" />
</settings>
</system.net>
This is not an answer, but is too long for a comment and may be helpful, so here goes...
First, it's hard to tell what's going on here because there is limited info. Try to post more of the logging either on the client or on the server. Go to the server console and get more info, for instance, or add debugging in the client. I'd start by trying to make the POST from a debug/testing tool like hurl.it: http://www.hurl.it/ (hurl is a nice web front end to a command line HTTP client named curl, see curl itself if you want a more advanced peek). That way you can test and poke around and make SURE your server side works as you expect with a generic client. Then build other clients (like Android).
Second, "Apache-HttpClient/UNAVAILABLE" is not an error, it's just the user-agent String -- so ignore that part. (UNAVAILABLE is where the version typically is, but some impls don't have access to the version sometimes, it seems.)
Third, the 405 response code IS an error, it means POST is not allowed at the server you are trying to POST to. That can either be because POST is not allowed at all on said server, or you're violating some security policy (such as same origin).
If it's AppEngine, first check the APP you are using and make sure it supports POST (look for info on how to do POST at AppEngine to solve, for instance: google app engine: 405 method not allowed). When you say you can do it directly from a "servlet," do you mean that a POST from a different client works? (Servlet is a server side technology, so that's a little confusing.) If so then make sure your Android app is doing the client part the same way to the same host (multipart vs urlencoded, etc).
For a little more on the security stuff, which could be involved, see this post: Google App Engine + jQuery Ajax = 405 Method Not Allowed.
I've had the same trouble and in my case It was an error due to no write permission on server side area.
I was following an android test to write on a file a value transmitted in async way via POST method.
Apache received the POST request but was not able to write the data on the file due to security permission on it.