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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
...f software experiences, with many blocks created to utilize Android system services such as sending and receiving SMS messages or reading information from the web. The focus of this effort was to extend AppInventor’s toolset into the physical space, allowing users to easily interface with external...
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...sier to combine with sh -c.
I use this in my ansible task
- name: create service database
shell: docker exec postgres sh -c '{ psql -U postgres -tc "SELECT 1" -d {{service_name}} &> /dev/null && echo -n 1; } || { psql -U postgres -c "CREATE DATABASE {{service_name}}"}'
register:...
Can I do a synchronous request with volley?
Imagine I'm in a Service that already has a background thread. Can I do a request using volley in that same thread, so that callbacks happen synchronously?
...
Are querystring parameters secure in HTTPS (HTTP + SSL)? [duplicate]
...he logs can forge your ID? Say if anyone at Loggly leaks any info, lots of services would be compromised?
– Adrien
Jan 26 '14 at 15:53
16
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Is there any JSON Web Token (JWT) example in C#?
... for any given task. I'm trying to implement authentication with a Google "Service Account" by use of JSON Web Tokens (JWT) as described here .
...
Best Practice for Forcing Garbage Collection in C#
...ector does. This is unlikely to be true in a multi user application, or a service that is responding to more then one request at a time.
However in some batch type processing you do know more then the GC. E.g. consider an application that.
Is given a list of file names on the command line
Proce...
How to store standard error in a variable
...
This worked for me : my_service_status=$(service my_service status 2>&1) Thanks !!
– JRichardsz
Apr 6 '18 at 19:52
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What is Domain Driven Design?
...erence-room white boards.
Also see this article Domain Driven Design for Services Architecture which provides a short example. The article provides the following thumbnail description of Domain Driven Design.
Domain Driven Design advocates modeling based on the reality of
business as relevan...
Should sorting logic be placed in the model, the view, or the controller? [closed]
...del, view, or controller.
What I generally do in my MVC apps is I have a service layer that performs all the business logic. The methods in the service layer should have a clean, simple API with well named parameters. You can then invoke those methods from your controller to manipulate the data in...
How do I protect Python code? [closed]
...ion, but it certainly makes your software stop working.
Offer it as a web service. SaaS involves no downloads to customers.
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