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react tutorial snippet updates

This commit is contained in:
Matthias Kretschmann 2019-11-20 19:32:42 +01:00
parent 1973215b7b
commit 1b83d24725
Signed by: m
GPG Key ID: 606EEEF3C479A91F
3 changed files with 15 additions and 15 deletions

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@ -18,7 +18,7 @@ In the previous tutorial we added asset publishing. We can now search for publis
We will store the search results in the local component state so we have to set its initial state first:
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Just after the `registerAsset()` function we add a new `searchAssets` function that will handle search:
@ -26,7 +26,7 @@ GITHUB-EMBED https://github.com/oceanprotocol/react-tutorial/blob/2765a7e6ae9a94
Now we need a button to start our search inside the `render()` function, just after the _Register asset_ button:
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## Consume Asset
@ -34,7 +34,7 @@ Consuming means downloading one or multiple files attached to an asset. During t
With the following code we start the consume process with the first search result, then go on to download its first attached file. Put it after the `searchAssets()` function:
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We still need a button to start consumption. In the render function, just after the _Search assets_ button, add:

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@ -19,21 +19,21 @@ To do that, we need to define the asset based on the [OEP-08](https://github.com
Let's create a new file `src/asset.js` and fill it with:
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Then import this asset definition at the top of `src/index.js`:
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## Handle Asset Publishing
Now that we have an asset to submit, we need a function to handle it. Just before `render() {` let's add this `registerAsset` function:
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The last thing we need is a button to start our registration inside the `render()` function:
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Note how we disable the button when Web3 is not available to reduce user confusion. Within the Ocean Protocol flow of registering, searching, and consuming, only searching is possible without Web3.
@ -51,6 +51,6 @@ Have a look into `console.log` to see the various steps of the register process.
Here is the full source of `src/index.js` that you should have if you followed this tutorial:
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**Move on to [Get & Use a Data Set](/tutorials/react-get-use-data-set/).**

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@ -41,7 +41,7 @@ marketplace/
First, create a new project folder for your new app, e.g. `marketplace`. Within that, add a new file `package.json` with the following content:
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Notice the `@oceanprotocol/squid` dependency, which is the [Ocean Protocol JavaScript library](https://github.com/oceanprotocol/squid-js). Save that file, and in your terminal install the dependencies we have just defined in `package.json`:
@ -51,13 +51,13 @@ npm install
Then create the HTML file used to render the React app into. For that, create a folder `public/` and in it a file `index.html` with the following content:
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## Add Basic Markup
Create a new folder `src/` and within that a `index.js` file with the following content as our base, where we already import squid-js and web3.js:
GITHUB-EMBED https://github.com/oceanprotocol/react-tutorial/blob/14df1d877be48deda15afa12bf3c4efbafffcd4b/src/index.js jsx 1-4,6,14,97-108,119-124 GITHUB-EMBED
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At this point you can start up the app and see the result in your browser:
@ -75,15 +75,15 @@ We already are importing web3.js but we still need to enable account access for
To do that we add a simple check at top of `src/index.js` and then enable account access with:
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And let's also output some warning for non-Web3 browsers within our `render()` function:
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This should give you the following markup:
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After those steps go to your browser. You should see MetaMask asking you to allow access to your account:
@ -97,7 +97,7 @@ Now that we are successfully connected with Web3, we can set up our Ocean instan
At the beginning of your component, create a new Ocean instance with all required endpoint configurations within the `componentDidMount` lifecycle method. All Ocean Protocol operations can be executed from this Ocean instance.
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This will initiate a connection to all Ocean components in Nile, load the contracts, and finally store the Ocean object in the local component state for reuse.