{"id":2839,"date":"2021-01-22T21:09:00","date_gmt":"2021-01-22T08:09:00","guid":{"rendered":"http:\/\/www.talkcrypto.org\/blog\/?p=2839"},"modified":"2021-02-07T23:22:34","modified_gmt":"2021-02-07T10:22:34","slug":"deploy-solidity-helloworld-to-ethereum-testnet","status":"publish","type":"post","link":"https:\/\/www.talkcrypto.org\/blog\/2021\/01\/22\/deploy-solidity-helloworld-to-ethereum-testnet\/","title":{"rendered":"Deploy Solidity helloWorld to Ethereum testnet"},"content":{"rendered":"\n

Building on from the previous article on creating a helloWorld smart contract, here we will show how to deploy a contract to an Ethereum testnet. <\/p>\n\n\n\n

The testnet we will use is called Ropsten but there are others can you can choose such as Koven, Rinkeby or Goerli. <\/p>\n\n\n\n

Step 1: Install Metamask<\/h2>\n\n\n\n

Metamask<\/a> is a browser plugin that can serve as a crypto wallet and also as a connection to various blockchains to communicate and sign transactions. <\/p>\n\n\n\n

Install this by visiting: https:\/\/metamask.io\/download.html<\/p>\n\n\n\n

Step 2: Change the Metamask network<\/h2>\n\n\n\n

Change the network to the Ropsten<\/a> testnet.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Step 3: Get some test ether<\/h2>\n\n\n\n

To get some test ether, click buy, and then click Get Ether in the Test Faucet section below.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Step 4: Deploy your smart contract<\/h2>\n\n\n\n

Change your environment from Javascript VM to Injected Web3. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Now when you click deploy, Metamask will pop up and ask you to confirm the transaction. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Click confirm. <\/p>\n\n\n\n

Step 5: Interacting with your smart contract<\/h2>\n\n\n\n

Now you can interact with your smart contract the same way but each time you try and store a message, you will have to pay a small fee (gas) and sign the transaction using Metamask. <\/p>\n\n\n\n

Here is a link to the smart contract: https:\/\/ropsten.etherscan.io\/address\/0xa0aa7eb1055dccee55df798cd70cc1766322bf85<\/p>\n\n\n\n

and here is a link to the transaction where you can see the string that was stored.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Building on from the previous article on creating a helloWorld<\/p>\n","protected":false},"author":1,"featured_media":2847,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,2],"tags":[],"class_list":["post-2839","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethereum","category-smart-contracts"],"featured_image_urls":{"full":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"thumbnail":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask-150x150.jpg",150,150,true],"medium":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"medium_large":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"large":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"1536x1536":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"2048x2048":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"chromenews-featured":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"chromenews-large":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false],"chromenews-medium":["https:\/\/www.talkcrypto.org\/blog\/wp-content\/uploads\/2021\/01\/metamask.jpg",194,180,false]},"author_info":{"info":["seandotau"]},"category_info":"Ethereum<\/a> Smart Contracts<\/a>","tag_info":"Smart Contracts","comment_count":"0","_links":{"self":[{"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/posts\/2839","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/comments?post=2839"}],"version-history":[{"count":1,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/posts\/2839\/revisions"}],"predecessor-version":[{"id":2846,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/posts\/2839\/revisions\/2846"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/media\/2847"}],"wp:attachment":[{"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/media?parent=2839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/categories?post=2839"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.talkcrypto.org\/blog\/wp-json\/wp\/v2\/tags?post=2839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}