go-cache | This project encapsulates multiple db servers | SQL Database library
kandi X-RAY | go-cache Summary
kandi X-RAY | go-cache Summary
This project encapsulates multiple db servers, redis、ledis、memcache、file、memory、nosql、postgresql
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Trending Discussions on go-cache
QUESTION
I'm trying to build a basic cache system with Go as a tutorial.
For some reason when I run this, the if else statement leads to a error.
...ANSWER
Answered 2021-Jan-15 at 12:02go conditional statements follows the following syntax
QUESTION
I'm trying to write a wrap around a function that uses an interface{}
parameter to return data, by adding cache.
My problem is that once I have a valid interface{}
I don't know how to assign it to be returned in the parameter. The wrapped call is (github.Client) .Do
in github API client and the problem hit me when I tried to add caching with go-cache
This somewhat my function
...ANSWER
Answered 2021-Jan-01 at 04:54With certain assumptions like you are storing json data in your cache below is how I will try. Errors not handled.
QUESTION
I am using django-cacheops to cache a Query. And updating some in the same instance with some different API call now I want to remove this cached Query from Redis. This is API-1
...ANSWER
Answered 2019-Dec-26 at 13:12The official documentation of django-cacheops states that it listens on model signals and invalidates "appropriate queries". But it won't invalidate queries that doesn't seem to be affected by the change. It looks like a bug to me as the queryset for API-1 should be affected by the change in API-2. But meanwhile you can also try invalidating the cache forcefully by using
QUESTION
Say you have a rather large requirements.pip
when you modify a requirements.pip, it takes ages to build Docker image because it has to download and install all packages in requirements.pip
Is there a way to speed up the docker image building process when you modify a length requirements.pip
?
MY docker
...ANSWER
Answered 2019-Oct-31 at 15:05You can divide by yourself in different files the requirements that are less likely to change and those that are most likely to change.
Then you have two different RUN
stages like
QUESTION
I have found myself writing the same function X number of times to get different types of Items out of my go-cache. The duplicate functions are like so:
...ANSWER
Answered 2019-Oct-29 at 16:41Go does not have generics, so what you want is not possible. If this really bothers you, you could use reflection to pass in the reflect.Type
of the values you want, use reflection to create and assemble that result slice, but it'll be slower than your individual functions.
You could also use a type switch to reduce the code repetition, but you cannot have "dynamic" return type. So the caller would still have to use a type assertion on the return value.
QUESTION
How do I specify another directory where cargo keeps the unpacked sources, e.g. on Windows this is %userprofile%/.cargo/registry/src
?
I working that is going to be a collection of crates like:
...ANSWER
Answered 2019-May-06 at 10:50Looks like this is possible. I think it called "vendoring" and repositories like Fuchsia and Mozilla has source copy of third-party crates in their repositories. This is what I have found:
- Cargo supports "Source replacement" thing configured in .cargo/config, which can be in a project relative dir:
With this configuration Cargo attempts to look up all crates in the directory "vendor" rather than querying the online registry at crates.io. Using source replacement Cargo can express:
Vendoring - custom sources can be defined which represent crates on the local filesystem. These sources are subsets of the source that they're replacing and can be checked into packages if necessary.
Mirroring - sources can be replaced with an equivalent version which acts as a cache for crates.io itself.
- There is a tool https://github.com/alexcrichton/cargo-vendor that can used to populate the directory with source codes of the dependencies:
Simply run
cargo vendor
inside of any Cargo project:
QUESTION
I am using environment key for better settings configuration. Initially, i got the following error
...ANSWER
Answered 2018-Aug-29 at 03:09Apparently not every line in .envs/.local/.postgres
has an =
character, so split('=', 1)
results in only one item in the tuple it outputs for the line, while dict.update
expects two items for every tuple in the iterator output.
You should make sure that there is an =
character in the line in the generator expression:
QUESTION
I am working on a CLI in Go that scrapes a webpage to collect the href attributes of all the links on the page into a slice. I want to store this slice in memory for some time so that the scraper is not being called on every execution of the CLI command. Ideally, the scraper would only be called after the cache expires or the user provides some sort of --update
flag.
I came across the library go-cache and other similar libraries, but from what I could tell they only work for something that is continuously running, like a server.
I thought about writing the links to a file, but then how would I expire the results after a specific duration? Would it make sense to create a small server in the background that shuts down after a while in order to use a library like go-cache
? Any help is appreciated.
ANSWER
Answered 2018-Aug-02 at 21:44Use a database and store as much detail as you can (fetched_at, host, path, title, meta_desc, anchors etc). You'll be able to query over the data later and it will be useful to have it in a structured format. If you don't want to deal with a db dependency you could embed something like boltdb (pure go) or sqlite (cgo).
QUESTION
Here's my code for a concurrent cache:
...ANSWER
Answered 2018-May-08 at 04:44maps require synchronization, in particular you can not read it while writing to it, regardless of if it's the same or distinct keys, so you need your lock around the meno map.
QUESTION
Using django-cacheops, I want to test that my views are getting cached as I intend them to be. In my test case I'm connecting cacheops cache_read
signal to a handler that should increment a value in the cache for hits or misses. However, the signal is never fired. Does anyone know the correct way to connect a django signal handler in a testcase, purely for use in that testcase?
here's what I have so far
...ANSWER
Answered 2017-Jul-04 at 09:33I can't see why this is happening but I will try to make a useful answer anyway.
First, if you want to test whether cache works you shouldn't rely on its own side effects to check that, and signals are side effects of its primary function - preventing db calls. Try testing that:
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