pgxtutorial
pgx
pgxtutorial | pgx | |
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3 | 71 | |
115 | 9,488 | |
- | - | |
6.8 | 9.1 | |
5 months ago | 7 days ago | |
Go | Go | |
MIT License | MIT License |
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pgxtutorial
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Back to basics: Writing an application using Go and PostgreSQL with pgx
# Clone my repository with any of the following commands: $ gh repo clone henvic/pgxtutorial $ git clone https://github.com/henvic/pgxtutorial.git $ git clone [email protected]:henvic/pgxtutorial.git # then: $ cd pgxtutorial # Create a database $ psql -c "CREATE DATABASE pgxtutorial;" # Set the environment variable PGDATABASE $ export PGDATABASE=pgxtutorial # Run migrations $ tern migrate -m ./migrations # Run all tests passing INTEGRATION_TESTDB explicitly $ INTEGRATION_TESTDB=true go test -v ./... # Execute application $ go run ./cmd/pgxtutorial 2021/11/22 07:21:21 HTTP server listening at localhost:8080 2021/11/22 07:21:21 gRPC server listening at 127.0.0.1:8082
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Back to basics: Writing an application using Go and PostgreSQL
oh, I also have defined database.PGX (https://github.com/henvic/pgxtutorial/blob/main/internal/dat...), which is a little more scarier. I'll get back about that too, but this one is perhaps even more useless, and there might be a better way to solve the issue I want to try to avoid with it.
pgx
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Setting up a Database Driver, Repository and Implementation of a transaction function for your Go App
Sometimes, backend developers tend to opt for an ORM library because it provides an abstraction between your app and the database and thus there is little or no need to write raw queries and migrations which is nice. However, if you want to get better at writing queries (SQL for example), you need to learn how to build your repositories without an ORM. To open a database handle, you can either do it directly from the database driver or do it from database/sql with the driver passed into it. I will be opening the connection with database/sql together with pgx which is a driver and toolkit for PostgreSQL. Walk with me.
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The DDD Hamburger for Go
The infrastructure layer contains the concrete implementation of the repository domain interface ActivityRepository in the struct DbActivityRepository. This repository implementation uses the Postgres driver pgx and plain SQL to store the activity in the database. It uses the database transaction from the context, since the transaction was initiated by the application service.
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Building RESTful API with Hexagonal Architecture in Go
For building the RESTful Point of Sale service API, I've considered and selected a combination of technologies that would work seamlessly together. For handling HTTP requests and responses, using the Gin HTTP web framework would make sense because I think it seems complete and popular among Go community too. To ensure data integrity and persistence, I'm using PostgreSQL database with pgx as the database driver, the reason I choose PostgreSQL because it is the most popular relational database to use in production and offers efficient Go integration. I'm also implementing caching using Redis with go-redis client library, which provides powerful in-memory data storage capabilities.
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Working with postgres in GO.
If you are willing to commit to working only with Postgres, I highly recommend pgx. Be sure you get the latest version github.com/jackc/pgx/v5. This gives you the full power of interacting with Postgres without going through an intermediate lowest-common-denominator library.
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How to Use Iris and PostgreSQL for Web Development
It uses pg package and pgx driver under the hood.
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Could I get a code review?
Starting off, is there any reason you're calling out to the CLI, instead of just using a Postgres driver like pgx? Shelling out to the command line should always be a last resort where possible as a software engineer.
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Why elixir over Golang
For maintaining state I use PostgreSQL. Driver: https://github.com/jackc/pgx (I use the pgxpools) Along with Sqlc for generating database models and allowing me to focus on just building queries in DBeaver. https://sqlc.dev/
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Make psql display settings on login
An example of what I'm looking for can be found here https://github.com/jackc/pgx/wiki/Getting-started-with-pgx-through-database-sql/c9f798b4d9a500fcf93931df2464af969d68f516
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Zig now has built-in HTTP server and client in std
Except pgx recommends using their native interface, not database/sql, for performance and extra features [0], so it's not that simple in practice.
[0]: https://github.com/jackc/pgx#choosing-between-the-pgx-and-da...
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Go Roadmap
pgx is “PostgreSQL driver and toolkit for Go”. Take a look at https://github.com/jackc/pgx
What are some alternatives?
go-mockgen-tool - Go/Golang mock generation for interfaces via code generation
sqlx - general purpose extensions to golang's database/sql
pq - Pure Go Postgres driver for database/sql
GORM - The fantastic ORM library for Golang, aims to be developer friendly
litestream - Streaming replication for SQLite.
dockertest - Write better integration tests! Dockertest helps you boot up ephermal docker images for your Go tests with minimal work.
gomock - GoMock is a mocking framework for the Go programming language.
whatgotdone - A tool for sharing weekly task updates with teammates.
go-sql-driver/mysql - Go MySQL Driver is a MySQL driver for Go's (golang) database/sql package
impl - impl generates method stubs for implementing an interface.
sqlc - Generate type-safe code from SQL