UsherJS is the latest version of Usher's Referral and Conversion Tracking Library - enabling you to automatically cache Usher Referral Tokens, and use said tokens to process Conversions and Reward your Partners once your Users take any action, such as:
When installing UsherJS on your Web App or dApp, it is highly recommended to load UsherJS on every page. This way, no matter where the Campaign redirects your Referred Users, UsherJS is installed to parse the URL immediately.
<script>
<script src="https://cdn.jsdelivr.net/npm/@usher.so/js"></script>
<script>
(function () {
function convert() {
console.log("Usher loves Arweave!");
const usher = window.Usher();
usher.convert({
id: "QOttOj5CmOJnzBHrqaCLImXJ9RwHVbMDY0QPEmcWptQ",
chain: "arweave",
eventId: 0,
metadata: {
amount: 100
}
});
}
if (typeof window.Usher === "undefined") {
window.UsherLoaders = window.UsherLoaders || [];
window.UsherLoaders.push(convert);
} else {
convert();
}
})();
</script>
<!-- UsherJS can even be loaded here with the use of window.UsherLoaders -->
# npm
npm i @usher.so/js
# yarn
yarn add @usher.so/js
import { Usher } from "@usher.so/js";
const usher = Usher();
(async () => {
const conversion = await usher.convert({
id: "ida4Pebl2uULdI_rN8waEw65mVH9uIFTY1JyeZt1PBM",
chain: "arweave",
eventId: 0,
commit: 10,
// nativeId: "user_wallet_address",
metadata: {
hello: "world",
key: "value"
}
});
console.log("Conversion Result: ", conversion);
})();
UsherJS can be instantiated by optionally passing a config
object.
const usher = Usher();
// or
const usher2 = Usher({ apiUrl: "https://app.staging.usher.so/api" });
// or
const usher3 = Usher({ apiUrl: "<YOUR_USHER_NODE_URL>/api" });
Option | Type | Default | Description |
---|---|---|---|
apiUrl |
string | "https://app.usher.so/api" | The URL to the Usher Core API to use for Conversion Tracking |
conflictStrategy |
string (enum) | "passthrough" | An enum to indicate how to handle conflicting tokens for the same campaign. The option can be either be "passthrough" or "overwrite" . In the "passthrough" scenario, referal tokens are backlogged for the same campaign. Any previously tracked referral token is saved to the browser until it expires or is used. In the "overwrite", any new referral token that is saved overwrites other saved tokens relative to the same campaign. |
Example method use:
usher.parse();
const token = usher.token({
id: "my_campaign_id",
chain: "arweave"
});
usher.anchor("#my-anchor-element", {
id: "my_campaign_id",
chain: "arweave"
});
usher.convert({
id: "my_campaign_id",
chain: "arweave",
eventId: 0
});
Method | Parameters | Description |
---|---|---|
config() |
Config | A string to indicate the event to execute, or the callback to register |
convert(conversion) |
Conversion | An object with parameters implicating how the Conversion is handled, and the relevant Campaign and Campaign Event. |
parse(url, keepQueryParam) |
url: string , keepQueryParam: boolean (Default: false) |
A method used to parse the current URL Query Parameters and save the Usher Referral Token _ushrt . This method is immediately called when UsherJS is loaded on a Browser-based Web App. A provided URL will be parsed instead of the current web page URL. By default, the current web page URL has the _ushrt query parameter cleared after it is saved. |
token() |
{ id: string; chain: string } |
Fetch the currently saved Referral Token that will be used in the next executed conversion - convert(conversion) |
anchor(anchorSelector, campaignRef) |
anchorSelector: string , ref: CampaignReference |
Modify the href attribute on an <a> Anchor HTML Element to include the currently saved Referral Token. This can be used to pass the _ushrt Referral Token between websites/origins/domains. |
flush() |
- | Flush all saved tokens from browser storage |
To test your integration of UsherJS, be sure to configure using Usher({ apiUrl })
. You can use our Usher Staging Environment, or you can use your own Usher Core Node.
Learn more about the Usher Core Node →
You may use our Staging Environment to test your integration of UsherJS. To do so, you will need to:
apiUrl
option when instantiating UsherJS to https://app.staging.usher.so/api
Deploy your own Usher Core Node to test your integration. To do so, you will need to:
apiUrl
option when instantiating UsherJS to the URL of your Usher Core API. (e.g. on local development: http://localhost:3000/api
)First, clone the repo and then startup our local dev environment:
$ git clone git@github.com:usherlabs/usher.js.git
$ cd usher.js
$ yarn
$ yarn dev
In a separate Terminal Tab, serve the Example HTML file:
yarn local
Then, make your changes and test them out using the test Campaign on the Usher Staging Environment! This specific Test Campaign has a destination URL http://localhost:3001/
You may also use your own Usher Core Node to contribute to the development of Usher.js.
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