crate | 👕 👖 📦 A sample web and mobile application built with Node, Express, React, React Native, Redux a | Frontend Framework library
kandi X-RAY | crate Summary
kandi X-RAY | crate Summary
👕 👖 📦 A sample web and mobile application built with Node, Express, React, React Native, Redux and GraphQL. Very basic replica of stitchfix.com / krate.in (allows users to get monthly subscription of trendy clothes and accessories).
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Get product product
- Get related related list .
- Login a user
- Get a list of products
- Get list of subscriptions for a user
- Retrieve a subscription by user
- Determines if an object is empty
- Load all theories in the store .
- Get a product
- Upload params to file
crate Key Features
crate Examples and Code Snippets
Community Discussions
Trending Discussions on crate
QUESTION
I'm using glutin
and so have a move closure for my program's main loop and I'm trying to play an audio file with the rodio
crate. With the following code everything works and I get one beep every time the program loops:
ANSWER
Answered 2021-Jun-15 at 16:27Basically, the problem at hand is that rodio::Decoder::new
consumes the value which it reads from (well, actually it is already consumed by BufReader::new
). So, if you have a loop or a closure that can be called multiple times, you have to come up with a fresh value each time. This what File::open
does in your first code snipped.
In your second code snipped, you only create a File
once, and then try to consume it multiple times, which Rust's ownership concept prevents you from doing.
Also notice, that using reference is sadly not really an option with rodio
since the decoders must be 'static
(see for instance the Sink::append
trait bound on S
).
If you think your file system is a bit slow, and you want to optimize this, then you might actually want to read the entire file up-front (which File::open
doesn't do). Doing this should also provide you with a buffer (e.g. a Vec
) that you can clone, and thus allows to repeatedly create fresh values that can be consumed by the Decoder
. Here is an example doing this:
QUESTION
I'm implementing a simple task queue using redis in Rust, but am struggling to deserialize the returned values from redis into my custom types.
In total I thought of 3 approches:
- Deserializing using serde-redis
- Manually implementing the
FromRedisValue
trait - Serializing to String using serde-json > sending as string > then deserializing from string
The 3rd approach worked but feels artificial. I'd like to figure out either 1 or 2, both of which I'm failing at.
Approach 1 - serde-redisI have a simple Task definition:
...ANSWER
Answered 2021-Jun-15 at 09:55Redis doesn't define structured serialization formats. It mostly store strings and integers. So you have to choose or define your format for your struct.
A popular one is JSON, as you noticed, but if you just want to (de)serialize simple pairs of (id, description), it's not very readable nor convenient.
In such a case, you can define your own format, for example the id and the description with a dash in between:
QUESTION
I am trying to use stable version of rustc
to compile a rocket web application. rocket
crate compiles fine but I would like to use a static file server from rocket_contrib
. My Cargo.toml
file looks like this:
ANSWER
Answered 2021-Jun-15 at 09:47Starting from version 0.5 of Rocket, you are not expected to use rocket_contrib
, because this one was split into features which are either already in the core crate or moved to separate crates. The notes from this revision (see also issue 1659) provide a few more details:
This follows the completed graduation of stable contrib features into core, removing 'rocket_contrib' in its entirety in favor of two new crates. These crates are versioned independently of Rocket's core libraries, allowing upgrades to dependencies without consideration for versions in core libraries.
'rocket_dyn_templates' replaces the contrib 'templates' features. While largely a 1-to-1 copy, it makes the following changes:
- the 'tera_templates' feature is now 'tera'
- the 'handlebars_templates' feature is now 'handlebars'
- fails to compile if neither 'tera' nor 'handlebars' is enabled
'rocket_sync_db_pools' replaces the contrib 'database' features. It makes no changes to the replaced features except that the
database
attribute is properly documented at the crate root.
In short, you will need to migrate your code away from rocket_contrib
. Better guidelines may become available once v0.5 is definitely released, but until then, you may look for the features once available in rocket_contrib
in the core documentation and respective Cargo feature list.
QUESTION
Hey, I am working on putting up a rocket
rest api with a mongodb
database.
I have been able to create a successful connection to the MongoDB Atlas
and put the resulting client into the state management of rocket
via the manage
builder function like this:
ANSWER
Answered 2021-Jun-14 at 20:39This has been resolved. See above for the solution. It is marked with a header saying solution.
QUESTION
Why lombok doesnt not crate constructor with args
...ANSWER
Answered 2021-Jun-14 at 08:44As per Lombok documentation (https://projectlombok.org/api/lombok/AllArgsConstructor.html):
An all-args constructor requires one argument for every field in the class.
Obviously you haven't provided id as a constructor argument.
QUESTION
ANSWER
Answered 2021-Jun-13 at 18:47In order to understand what's going on, I'll reformat the code a bit in order to make it more clear and explicit:
Your original code:
QUESTION
I am trying to build a POST handler, that receives JSON data with rocket
(version: 0.5.0-rc.1).
This is the code I wrote:
...ANSWER
Answered 2021-Jun-13 at 12:00Your problem is not about lifetimes, you are using the wrong Json
struct. You are using rocket::response::content::Json
, this can be used to set the Content-Type
of a response (see for example this). You want to use rocket::serde::json::Json
:
QUESTION
I am working in an environment where I cannot use heap memory but only stack memory. To not be constrained by the #[no_std]
enviroment I tried to use stack memory as heap memory with the linked-list-allocator crate. This was my approach.
ANSWER
Answered 2021-Apr-02 at 10:11After looking into the code and finding what looks a lot like the default entry point I'll put what I think is the confirmation of my guess as an answer: the global_allocator
must be fully initialised before main
, because the default entry point relies on it and allocates: https://github.com/rust-lang/rust/blob/master/library/std/src/rt.rs#L40-L45
QUESTION
I would like to read a GRIB file downloaded from server using ecCodes library in Rust. However, my current solution results in segmentation fault. The extracted example, replicating the problem, is below.
I download the file using reqwest
crate and get the response as Bytes
1 using bytes()
. To read the file with ecCodes I need to create a codes_handle
using codes_grib_handle_new_from_file()
2, which as argument requires *FILE
usually get from fopen()
. However, I would like to skip IO operations. So I figured I could use libc::fmemopen()
to get *FILE
from Bytes
. But when I pass the *mut FILE
from fmemopen()
to codes_grib_handle_new_from_file()
segmentation fault occurs.
I suspect the issue is when I get from Bytes
a *mut c_void
required by fmemopen()
. I figured I can do this like that:
ANSWER
Answered 2021-Jun-12 at 13:291- Try changing
QUESTION
I am working with nom version 6.1.2 and I am trying to parse Strings like
A 2 1 2
.
At the moment I would be happy to at least differentiate between input that fits the requirements and inputs which don't do that. (After that I would like to change the output to a tuple that has the "A" as first value and as second value a vector of the u16 numbers.)
The String always has to start with a capital A and after that there should be at least one space and after that one a number. Furthermore, there can be as much additional spaces and numbers as you want. It is just important to end with a number and not with a space. All numbers will be within the range of u16. I already wrote the following function:
...ANSWER
Answered 2021-Jun-11 at 19:17It seems like that one part of the use declarations created that problem. In the documentation (somewhere in some paragraph way to low that I looked at it) it says: " Streaming / Complete Some of nom's modules have streaming or complete submodules. They hold different variants of the same combinators.
A streaming parser assumes that we might not have all of the input data. This can happen with some network protocol or large file parsers, where the input buffer can be full and need to be resized or refilled.
A complete parser assumes that we already have all of the input data. This will be the common case with small files that can be read entirely to memory. "
Therefore, the solution to my problem is to swap use nom::character::complete::{char, space1};
instead of nom::character::streaming::{char, space1};
(3rd loc without counting empty lines). That worked for me :)
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install crate
Clone repo git clone git@github.com:atulmy/crate.git crate
Switch to code directory cd code
Configurations Modify /api/src/config/database.json for database credentials Modify /api/.env for PORT (optional) Modify /web/.env for PORT / API URL (optional) Modify /mobile/src/setup/config.json for API URL (tip: use ifconfig to get your local IP address)
Setup API: Install packages and database setup (migrations and seed) cd api and npm run setup Webapp: Install packages cd web and npm install Mobile: Install packages cd mobile and npm install Install iOS dependencies cd mobile/ios pod install
Development Run API cd api and npm start, browse GraphiQL at http://localhost:8000/ Run Webapp cd web and npm start, browse webapp at http://localhost:3000/ Run Mobile cd mobile and npx react-native run-ios for iOS and npx react-native run-android for Android
Production Run API cd api and npm run start:prod, creates an optimized build in build directory and runs the server Run Webapp cd web and npm run start:prod, creates an optimized build in build directory and runs the server
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page