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Alvaro Andres Pinzon Cortes
Alvaro Andres Pinzon Cortes

149 Followers

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May 5, 2022

Creating simple zero-knowledge verifier contract with ZoKrates (0.5.0) solidity (0.5.0)

Prerequisites Install docker Step by step guide Create a folder named code to put the code Create the square.code file with this content: def main(private field a, field b) -> (field): field result = if a * a == b then 1 else 0 fi return result 3. Start docker 4. Open the terminal run…

Zokrates

2 min read

Creating simple zero-knowledge verifier contract with ZoKrates (0.5.0) solidity (0.5.0)
Creating simple zero-knowledge verifier contract with ZoKrates (0.5.0) solidity (0.5.0)
Zokrates

2 min read


May 5, 2022

Creating simple zero-knowledge verifier contract with ZoKrates (0.7.13) solidity (0.8.0)

Prerequisites Install docker Step by step guide Create a folder named code to put the code Create the square.zok file with this content: def main(private field a, field b): assert(a * a == b) return 3. Start docker 4. Open the terminal run this command: docker run -v <PATH_TO_FOLDER>:/home/zokrates/code -ti zokrates/zokrates:0.7.13 /bin/bash In my case…

Solidity

2 min read

Creating simple zero-knowledge verifier contract with ZoKrates (0.7.13) solidity (0.8.0)
Creating simple zero-knowledge verifier contract with ZoKrates (0.7.13) solidity (0.8.0)
Solidity

2 min read


Jan 11, 2022

How to mint a ERC721 token (NFT) for Udacity’s capstone?

Udacity Nanodegree Test that you can mint locally You can do this by using the tests in truffle. In the tests you can verify if the mint function is working as expected. Mint a token for a testnet You have these options Use this javascript code https://github.com/andresaaap/mint-ntf or this https://docs.alchemy.com/alchemy/tutorials/how-to-create-an-nft/how-to-mint-an-nft-with-ethers Use Rinkeby etherscan to interact with the contract https://rinkeby.etherscan.io

Nft

1 min read

Nft

1 min read


Dec 3, 2021

Testing the project locally in Minikube — Refactor Udagram App into Microservices and Deploy

Prerequisites Install minikube Install kubectl Video tutorial Step by step guide Part 1: test backend microservices Follow the getting started instructions in the project description Please test the bucket and make sure that it works correctly. You can upload an image manually and if you can access the image’s link then the bucket works correctly Please test the DB and…

Udacity

6 min read

Testing the reverse proxy locally in Minikube — Refactor Udagram App into Microservices and Deploy
Testing the reverse proxy locally in Minikube — Refactor Udagram App into Microservices and Deploy
Udacity

6 min read


Aug 30, 2021

Tips for creating an ERR Diagram — Design tips

Many of the tips that I am going to give are from this excellent book that I want to recommend: Fundamentals of Database Systems, 7th Edition Ramez Elmasri, University of Texas at Arlington Shamkant B.www.pearson.com Informal guidelines for relation design:

Eer Diagrams

3 min read

Tips for creating an ERR Diagram — Design tips
Tips for creating an ERR Diagram — Design tips
Eer Diagrams

3 min read


Aug 14, 2021

Great starting examples of CICD pipelines for kubernetes apps using CircleCI and AWS EKS

Continuous deployment pipeline to deploy simple html website to AWS EKS cluster using CircleCI Continuous deployment pipeline to deploy simple html website to AWS EKS cluster using CircleCI, cluster not created in pipeline Pipeline to create and delete AWS EKS cluster using CircleCI

Cicd

1 min read

Cicd

1 min read


May 14, 2021

How to find dependencies for maven projects

If you have the Package name and/or the Class name Using maven central repository listings These are some maven central repository listings: Maven Repository: Search/Browse/Explore com.yomahub " tlog-spring-boot-configuration " 1.3.0 MITmvnrepository.com You can search by: package name or by parts of the package. Try different combinations to see if there are good results Package name or by parts of the Package + Class name

Maven

2 min read

How to find dependencies for maven projects
How to find dependencies for maven projects
Maven

2 min read


May 13, 2021

Testing a container app or microservices app to deploy it to an AWS EKS cluster

Please follow the steps 1. Test locally with docker Install docker in your local machine. Build the docker image Run the docker image

Aws Eks

3 min read

Testing a container app or microservices app to deploy it to an AWS EKS cluster
Testing a container app or microservices app to deploy it to an AWS EKS cluster
Aws Eks

3 min read


May 13, 2021

IntelliJ Fatal error compiling: error: invalid target release: 14

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project catpoint-parent: Fatal error compiling: error: invalid target release: 14 -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project catpoint-parent: Fatal error compiling

Java

2 min read

IntelliJ Fatal error compiling: error: invalid target release: 14
IntelliJ Fatal error compiling: error: invalid target release: 14
Java

2 min read


May 11, 2021

EnvAccessKeyNotFound: failed to find credentials in the environment, Circle CI, AWS EKS

Problem 1: — Error message EnvAccessKeyNotFound: failed to find credentials in the environment Cause: Not creating as as CircleCI project or context environment variables the AWS credentials. Solution to configure AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_DEFAULT_REGION as CircleCI project or context environment variables.

Aws Eks

1 min read

EnvAccessKeyNotFound: failed to find credentials in the environment, Circle CI, AWS EKS
EnvAccessKeyNotFound: failed to find credentials in the environment, Circle CI, AWS EKS
Aws Eks

1 min read

Alvaro Andres Pinzon Cortes

Alvaro Andres Pinzon Cortes

149 Followers
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