TalentLayer Documentation
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The Graph

TalentLayer provides querying mechanisms by using the tools provided by The Graph. The TalentLayer Subgraph is the implementation of The Graph that should be used to query TalentLayer data. The Data that can be queried is defined by the Subgraph Schema and can be explored using the GraphQL explorer.

Exploring the Subgraph

The easiest way to explore the TalentLayer subgraph is to check out the Graph's playground environment. We currently have two subgraphs hosted there, one for the Ethereum goerli testnet and one for the Avalanche fuiji testnet.

Using the Playground

Using the playground you can create and save your own graphQL queries, as well as try out the default queries that we provide to get you up and running!
On the righthand side, you have access to some neat functionality that will help you explore the subgraph. Check out the GraphQL Explorer as well as Documentation Explorer to create customized queries on the fly!

An Introduction to Writing GraphQL Queries for the TalentLayer Subgraph

The most commonly used entities has a related description entity that stores the off-chain data hosted on IPFS.
On-chain Entity
Off-chain Entity
Service
ServiceDescription
Proposal
ProposalDescription
Review
ReviewDescription
User
UserDescription
Platform
PlatformDescription
The off-chain entity that is related to an on-chain entity can be accessed through the field description. Here is an example of what the relationship looks like in GraphQL.
{
services {
id
description {
id
}
}
}
This same pattern can be applied to the other entities by simply changing services to either users, proposals, reviews, or platforms.

Querying Services

Any of the attributes associated with the entities can be queried.
{
services {
id
createdAt
updatedAt
description {
id
title
about
}
}
}

Filtering Services Based On Different Attributes

Queries can also be ordered by and limited in number based on the values of different attributes.
# Get last 5 opened services with their offchain data for the platform 1
{
services(
orderBy: createdAt
orderDirection: desc
first: 5
where: {
status: Opened
platform: "1"
})
{
id
createdAt
updatedAt
status
platform {
id
}
buyer {
id
handle
numReviews
}
description {
id
title
about
startDate
expectedEndDate
keywords_raw
rateToken
rateAmount
}
}
}
For more information about sorting, pagination, and filtering please check out The Graph GraphQL API documentation.

Fulltext Search for ServiceDescription

The TalentLayer Subgraph further offers a fulltext search feature that can be used to make more advanced text searches.
The fulltext search allows using operators to query service descriptions based on text. For example, all the services that has a description that contains either the word hadhat or the word development in the field title or in the field keywords_raw can be found using the followng query:
{
serviceDescriptionSearchRank(text: "hardhat | development") {
title
about
keywords_raw
service {
id
}
}
}
For more information on which operators are allowed and how to use them, please check out the Graph's documentations on fulltext search queries.
Last modified 4d ago