https://www.youtube.com/watch?t=1890&v=IR1NLfaq7PU&feature=youtu.be

#kafka #event_driven #microservice

https://www.eventstore.com/eventstoredb

#database #grpc #event #event_store

https://podcasts.google.com/?feed=aHR0cHM6Ly9zb2Z0d2FyZWVuZ2luZWVyaW5nZGFpbHkuY29tL2NhdGVnb3J5L3BvZGNhc3QvZmVlZC8&ep=14&episode=aHR0cDovL3NvZnR3YXJlZW5naW5lZXJpbmdkYWlseS5jb20vP3A9MTAzNzY

#kafka #podcast #alternative

While configuration can be tested with command service nginx configtest, there is a more convenient way to do this - and immediately get whats wrong.

There is a command nginx -t, which test configuration and display error messages. Both commands must be used with sudo or permission denied messages might be shown (regarding SSL certificates for example).

Command to test and reload if it's ok:

sudo nginx -t && sudo service nginx reload

#nginx #test #configtest

#books #skills #programmers_fav_books

A senior React developer needed for a tech startup located in Hafez st.

Please send your resumes to:
@alirezastack

#job #react #redux

https://medium.com/@xoor/indexing-mongodb-with-elasticsearch-2c428b676343

#mongodb #elastic #elasticsearch #indexing #fulltext #fulltext_search #search #ngram #medium

How to copy a file in the same path with a different name?

Well you just need to use curly braces, {}, to make it happen:

What you usually MIGHT do:

cp /usr/local/share/lib/sample.conf /usr/local/share/lib/settings.conf

You can take the smart path btw:

cp /usr/local/share/lib/{sample,settings}.conf

NOTE: if suffix of both files are different you can put that inside of curly braces too.

#linux #sysadmin #cp #copy #trick

https://github.com/gorilla/mux/issues/360

#golang #gorilla #mux #middleware #github

https://github.com/tannerlinsley/react-query

#react #reactnative #reactquery

#JSON mapping in #protobuf #grpc:

https://developers.google.com/protocol-buffers/docs/proto3#json

#golang

https://www.digitalocean.com/community/tutorials/using-grep-regular-expressions-to-search-for-text-patterns-in-linux

#linux #grep #regex

Did you know you can use jsonSchema in MongoDB to search for documents?

Let's say you have users collection with data below:

{ "_id" : ObjectId("5f64bd1eca8806f2c04fcbe3"), "customer_id" : 100, "username" : "john" }
{ "_id" : ObjectId("5f64bd1eca8806f2c04fcbe5"), "customer_id" : 206, "username" : "new_customer" }
{ "_id" : ObjectId("60420df441558d6671cf54f2"), "customer_id" : "123", "username" : "Ali" }

Now let's say you want to find all documents that has a customer_id of type string instead of int.
In Mongo shell:

let ms = {required: ["customer_id"], properties: {customer_id: {bsonType: "string"}}}

This schema says look for documents that have customer_id field with string type. To search:

> db.customers.find({$jsonSchema: ms})
{ "_id" : ObjectId("60420df441558d6671cf54f2"), "customer_id" : "123", "username" : "Ali" }

Interesting, right? :)

#database #mongodb #jsonSchema #json_schema

Read more here:

https://docs.mongodb.com/master/reference/operator/query/jsonSchema/#jsonschema

https://golangcode.com/run-code-once-with-sync/

#golang #sync #once #goroutine #sync.once

https://go-proverbs.github.io/

#go #golang #proverbs